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| | Cd52 | CAMPATH-1 antigen; May play a role in carrying and orienting carbohydrate, as well as having a more specific role. (74 aa) |
| | Slc26a3 | Chloride anion exchanger; Chloride/bicarbonate exchanger. Mediates the efficient absorption of chloride ions in the colon, participating in fluid homeostasis. Plays a role in the chloride and bicarbonate homeostasis during sperm epididymal maturation and capacitation. Belongs to the SLC26A/SulP transporter (TC 2.A.53) family. (757 aa) |
| | Ace | Angiotensin-converting enzyme, soluble form; Converts angiotensin I to angiotensin II by release of the terminal His-Leu, this results in an increase of the vasoconstrictor activity of angiotensin. Also able to inactivate bradykinin, a potent vasodilator. Has also a glycosidase activity which releases GPI- anchored proteins from the membrane by cleaving the mannose linkage in the GPI moiety. This GPIase activity seems to be crucial for the egg- binding ability of the sperm; Belongs to the peptidase M2 family. (1312 aa) |
| | Spa17 | Sperm surface protein Sp17; Sperm surface zona pellucida binding protein. Helps to bind spermatozoa to the zona pellucida with high affinity. Might function in binding zona pellucida and carbohydrates (By similarity). (149 aa) |
| | Gstm5 | Glutathione S-transferase Mu 5; Conjugation of reduced glutathione to a wide number of exogenous and endogenous hydrophobic electrophiles; Belongs to the GST superfamily. Mu family. (224 aa) |
| | Prkaca | cAMP-dependent protein kinase catalytic subunit alpha; Phosphorylates a large number of substrates in the cytoplasm and the nucleus. Regulates the abundance of compartmentalized pools of its regulatory subunits through phosphorylation of PJA2 which binds and ubiquitinates these subunits, leading to their subsequent proteolysis. Phosphorylates CDC25B, ABL1, NFKB1, CLDN3, PSMC5/RPT6, PJA2, RYR2, RORA and VASP. RORA is activated by phosphorylation. Required for glucose- mediated adipogenic differentiation increase and osteogenic differentiation inhibition from osteoblasts. Involved in the [...] (351 aa) |
| | Tssk4 | Testis-specific serine/threonine-protein kinase 4; [Isoform 1]: Serine/threonine kinase which is involved in male germ cell development and in mature sperm function. May be involved in the Cre/Creb signaling pathway. Phosphorylates CREB1 on 'Ser-133' in vitro and can stimulate Cre/Creb pathway in cells (By similarity). Phosphorylates CREM on 'Ser-116' in vitro. Phosphorylates ODF2 on 'Ser-95'. [Isoform 3]: Catalytically inactive. Belongs to the protein kinase superfamily. CAMK Ser/Thr protein kinase family. (292 aa) |
| | Cabs1 | Calcium-binding and spermatid-specific protein 1. (391 aa) |
| | Tppp2 | Tubulin polymerization-promoting protein family member 2; Probable regulator of microtubule dynamics required for sperm motility (Probable). In contrast to other members of the family, has no microtubule bundling activity (By similarity). Belongs to the TPPP family. (170 aa) |
| | Spatc1l | Speriolin-like protein; Belongs to the speriolin family. (342 aa) |
| | Pgam1 | Phosphoglycerate mutase 1; Interconversion of 3- and 2-phosphoglycerate with 2,3- bisphosphoglycerate as the primer of the reaction. Can also catalyze the reaction of EC 5.4.2.4 (synthase), but with a reduced activity. (254 aa) |
| | Ift27 | Intraflagellar transport protein 27 homolog; Small GTPase-like component of the intraflagellar transport (IFT) complex B that promotes the exit of the BBSome complex from cilia via its interaction with ARL6. Not involved in entry of the BBSome complex into cilium. Prevents aggregation of GTP-free ARL6. Required for hedgehog signaling. Forms a subcomplex within the IFT complex B with IFT25 (By similarity). Its role in intraflagellar transport is mainly seen in tissues rich in ciliated cells such as kidney and testis. Essential for male fertility, spermiogenesis and sperm flagella format [...] (186 aa) |
| | Sept4 | Septin-4; Filament-forming cytoskeletal GTPase. Forms a filamentous structure with SEPTIN12, SEPTIN6, SEPTIN2 and probably SEPTIN4 at the sperm annulus which is required for the structural integrity and motility of the sperm tail during postmeiotic differentiation (By similarity). May play a role in cytokinesis (Potential). May play a role in platelet secretion (By similarity). (478 aa) |
| | Gabarap | Gamma-aminobutyric acid receptor-associated protein; Ubiquitin-like modifier that plays a role in intracellular transport of GABA(A) receptors and its interaction with the cytoskeleton. Involved in apoptosis. Involved in autophagy. Whereas LC3s are involved in elongation of the phagophore membrane, the GABARAP/GATE-16 subfamily is essential for a later stage in autophagosome maturation (By similarity); Belongs to the ATG8 family. (117 aa) |
| | Calm3 | Calmodulin-1; Calmodulin mediates the control of a large number of enzymes, ion channels, aquaporins and other proteins through calcium-binding. Among the enzymes to be stimulated by the calmodulin-calcium complex are a number of protein kinases and phosphatases. Together with CCP110 and centrin, is involved in a genetic pathway that regulates the centrosome cycle and progression through cytokinesis. Mediates calcium- dependent inactivation of CACNA1C. Positively regulates calcium- activated potassium channel activity of KCNN2. (149 aa) |
| | Cabcoco1 | Ciliary-associated calcium-binding coiled-coil protein 1; Calcium-binding protein. May be involved in the control of sperm flagellar movement. (308 aa) |
| | Tacr2 | Substance-K receptor; This is a receptor for the tachykinin neuropeptide substance K (neurokinin A). It is associated with G proteins that activate a phosphatidylinositol-calcium second messenger system. The rank order of affinity of this receptor to tachykinins is: substance K > neuromedin-K > substance P; Belongs to the G-protein coupled receptor 1 family. (384 aa) |
| | Slc9a3r1 | Na(+)/H(+) exchange regulatory cofactor NHE-RF1; Scaffold protein that connects plasma membrane proteins with members of the ezrin/moesin/radixin family and thereby helps to link them to the actin cytoskeleton and to regulate their surface expression. Necessary for recycling of internalized ADRB2. Was first known to play a role in the regulation of the activity and subcellular location of SLC9A3. Necessary for cAMP-mediated phosphorylation and inhibition of SLC9A3. May enhance Wnt signaling (By similarity). May participate in HTR4 targeting to microvilli. Involved in the regulation of [...] (355 aa) |
| | Lyzl6 | Lysozyme-like protein 6; May be involved sperm-egg plasma membrane adhesion and fusion during fertilization. Exhibits bacteriolytic activity in vitro against Micrococcus luteus and Staphylococcus aureus. Shows weak bacteriolytic activity against Gram-positive bacteria at physiological pH. Bacteriolytic activity is pH-dependent, with a maximum at around pH 5.6 (By similarity); Belongs to the glycosyl hydrolase 22 family. (148 aa) |
| | Vdac2 | Voltage-dependent anion-selective channel protein 2; Forms a channel through the mitochondrial outer membrane that allows diffusion of small hydrophilic molecules. The channel adopts an open conformation at low or zero membrane potential and a closed conformation at potentials above 30-40 mV. The open state has a weak anion selectivity whereas the closed state is cation-selective (By similarity). (295 aa) |
| | Wbp2nl | Postacrosomal sheath WW domain-binding protein; May play a role in meotic resumption and pronuclear formation, mediated by a WW domain-signaling pathway during fertilization. (359 aa) |
| | Rabl2 | Rab-like protein 2A; Plays an essential role in male fertility, sperm intra- flagellar transport, and tail assembly. Binds, in a GTP-regulated manner, to a specific set of effector proteins including key proteins involved in cilia development and function and delivers them into the growing sperm tail. (223 aa) |
| | Spag6l | Sperm-associated antigen 6; Important for structural integrity of the central apparatus in the sperm tail and for flagellar motility. (507 aa) |
| | Ropn1 | Ropporin-1; Important for male fertility. With ROPN1L, involved in fibrous sheath integrity and sperm motility, plays a role in PKA- dependent signaling processes required for spermatozoa capacitation. (212 aa) |
| | Rsph1 | Radial spoke head 1 homolog; The specific expression during male germ cell development and its characteristic localization suggest that it may play an important role in male meiosis. It is necessary for proper building of the axonemal central pair and radial spokes (By similarity). (301 aa) |
| | Tekt4 | Tektin-4; May be a structural component of the sperm flagellum. Contributes to normal sperm motility. (447 aa) |
| | 4430402I18Rik | Spermatogenesis associated 6-like protein; Belongs to the SPATA6 family. (347 aa) |
| | Odf3 | Outer dense fiber protein 3; Outer dense fibers are filamentous structures located on the outside of the axoneme in the midpiece and principal piece of the mammalian sperm tail. May help to maintain the passive elastic structures and elastic recoil of the sperm tail; Belongs to the ODF3 family. (254 aa) |
| | Hspd1 | 60 kDa heat shock protein, mitochondrial; Chaperonin implicated in mitochondrial protein import and macromolecular assembly. Together with Hsp10, facilitates the correct folding of imported proteins. May also prevent misfolding and promote the refolding and proper assembly of unfolded polypeptides generated under stress conditions in the mitochondrial matrix. The functional units of these chaperonins consist of heptameric rings of the large subunit Hsp60, which function as a back-to-back double ring. In a cyclic reaction, Hsp60 ring complexes bind one unfolded substrate protein per rin [...] (573 aa) |
| | Sept2 | Septin-2; Filament-forming cytoskeletal GTPase. Forms a filamentous structure with SEPTIN12, SEPTIN6, SEPTIN2 and probably SEPTIN4 at the sperm annulus which is required for the structural integrity and motility of the sperm tail during postmeiotic differentiation (By similarity). Required for normal organization of the actin cytoskeleton. Plays a role in the biogenesis of polarized columnar- shaped epithelium by maintaining polyglutamylated microtubules, thus facilitating efficient vesicle transport, and by impeding MAP4 binding to tubulin. Required for the progression through mitosis [...] (361 aa) |
| | Efcab2 | Dynein regulatory complex protein 8; Component of the nexin-dynein regulatory complex (N-DRC), a key regulator of ciliary/flagellar motility which maintains the alignment and integrity of the distal axoneme and regulates microtubule sliding in motile axonemes. (164 aa) |
| | Atp1b1 | Sodium/potassium-transporting ATPase subunit beta-1; This is the non-catalytic component of the active enzyme, which catalyzes the hydrolysis of ATP coupled with the exchange of Na(+) and K(+) ions across the plasma membrane. The beta subunit regulates, through assembly of alpha/beta heterodimers, the number of sodium pumps transported to the plasma membrane. (304 aa) |
| | Ccdc181 | Coiled-coil domain-containing protein 181; Microtubule-binding protein that localizes to the microtubular manchette of elongating spermatids. (509 aa) |
| | Enkur | Enkurin; Adapter that functions to localize a calcium-sensitive signal transduction machinery in sperm to a calcium-permeable ion channel. (255 aa) |
| | Cst11 | Cystatin-11; Has antibacterial activity against the Gram-negative bacteria E.coli. May play a role in sperm maturation and fertilization. Belongs to the cystatin family. (139 aa) |
| | Sun5 | SUN domain-containing protein 5; Plays an essential role in anchoring sperm head to the tail. Is responsible for the attachment of the coupling apparatus to the sperm nuclear envelope. (348 aa) |
| | Tacr3 | Neuromedin-K receptor; This is a receptor for the tachykinin neuropeptide neuromedin-K (neurokinin B). It is associated with G proteins that activate a phosphatidylinositol-calcium second messenger system. (452 aa) |
| | Ppp3r2 | Calcineurin subunit B type 2; Regulatory subunit of calcineurin, a calcium-dependent, calmodulin stimulated protein phosphatase. Confers calcium sensitivity. (179 aa) |
| | Saxo1 | Stabilizer of axonemal microtubules 1. (476 aa) |
| | Capzb | F-actin-capping protein subunit beta; F-actin-capping proteins bind in a Ca(2+)-independent manner to the fast growing ends of actin filaments (barbed end) thereby blocking the exchange of subunits at these ends. Unlike other capping proteins (such as gelsolin and severin), these proteins do not sever actin filaments. Isoform 3 may play a role in spermatogenesis. Alternatively, may play a role in later maturation steps such as capacitation and fertilization which involve changes of membrane domains. Plays a role in the regulation of cell morphology and cytoskeletal organization (By sim [...] (301 aa) |
| | Ak2 | Adenylate kinase 2, mitochondrial; Catalyzes the reversible transfer of the terminal phosphate group between ATP and AMP. Plays an important role in cellular energy homeostasis and in adenine nucleotide metabolism. Adenylate kinase activity is critical for regulation of the phosphate utilization and the AMP de novo biosynthesis pathways. Plays a key role in hematopoiesis. (239 aa) |
| | Ift81 | Intraflagellar transport protein 81 homolog; Component of the intraflagellar transport (IFT) complex B: together with IFT74, forms a tubulin-binding module that specifically mediates transport of tubulin within the cilium. Binds tubulin via its CH (calponin-homology)-like region. Required for ciliogenesis. Required for proper regulation of SHH signaling. [Isoform CDV-1R]: May play a role in development of the testis and spermatogenesis. (676 aa) |
| | Tacr1 | Substance-P receptor; This is a receptor for the tachykinin neuropeptide substance P. It is probably associated with G proteins that activate a phosphatidylinositol-calcium second messenger system. The rank order of affinity of this receptor to tachykinins is: substance P > substance K > neuromedin K. (407 aa) |
| | Ttll3 | Tubulin monoglycylase TTLL3; Monoglycylase which modifies alpha- and beta-tubulin, generating side chains of glycine on the gamma-carboxyl groups of specific glutamate residues within the C-terminal tail of alpha- and beta-tubulin. Involved in the side-chain initiation step of the glycylation reaction by adding a single glycine chain to generate monoglycine side chains. Not involved in elongation step of the polyglycylation reaction. (927 aa) |
| | Rho | Rhodopsin; Photoreceptor required for image-forming vision at low light intensity. Required for photoreceptor cell viability after birth. Light-induced isomerization of 11-cis to all-trans retinal triggers a conformational change that activates signaling via G-proteins. Subsequent receptor phosphorylation mediates displacement of the bound G-protein alpha subunit by the arrestin SAG and terminates signaling. (348 aa) |
| | Pgk2 | Phosphoglycerate kinase 2; Essential for sperm motility and male fertility but is not required for the completion of spermatogenesis. (417 aa) |
| | Pmfbp1 | Polyamine-modulated factor 1-binding protein 1; Required for normal spermatogenesis. It functions as a scaffold protein that attaches the sperm head-tail connecting piece to the nuclear envelope, thus maintaining sperm head and tail integrity. May also be involved in the general organization of cellular cytoskeleton. (1022 aa) |
| | Spata19 | Spermatogenesis-associated protein 19, mitochondrial; May have a role in spermiogenesis. (154 aa) |
| | Mns1 | Meiosis-specific nuclear structural protein 1; May play a role in the control of meiotic division and germ cell differentiation through regulation of pairing and recombination during meiosis. (491 aa) |
| | Ctsh | Cathepsin H heavy chain; Important for the overall degradation of proteins in lysosomes; Belongs to the peptidase C1 family. (333 aa) |
| | Atp1b3 | Sodium/potassium-transporting ATPase subunit beta-3; This is the non-catalytic component of the active enzyme, which catalyzes the hydrolysis of ATP coupled with the exchange of Na(+) and K(+) ions across the plasma membrane. The exact function of the beta-3 subunit is not known. (278 aa) |
| | Ptchd3 | Patched domain-containing protein 3; May play a role in sperm development or sperm function. (906 aa) |
| | Spef2 | Sperm flagellar protein 2; Required for correct axoneme development in spermatozoa. Important for normal development of the manchette and sperm head morphology. Essential for male fertility. Plays a role in localization of the intraflagellar transport protein IFT20 to the manchette, suggesting function as an adapter for dynein-mediated protein transport during spermatogenesis. Also plays a role in bone growth where it seems to be required for normal osteoblast differentiation. (875 aa) |
| | Mroh2b | Maestro heat-like repeat-containing protein family member 2B; May play a role in the process of sperm capacitation. (1581 aa) |
| | Tcte3 | Tctex1 domain-containing protein 3. (191 aa) |
| | Spata6 | Spermatogenesis-associated protein 6; Required for formation of the sperm connecting piece during spermiogenesis. Sperm connecting piece is essential for linking the developing flagellum to the head during late spermiogenesis. May be involved in myosin-based microfilament transport through interaction with myosin subunits. (488 aa) |
| | Catsper2 | Cation channel sperm-associated protein 2; Voltage-gated calcium channel that plays a central role in sperm cell hyperactivation. Controls calcium entry to mediate the hyperactivated motility, a step needed for sperm motility which is essential late in the preparation of sperm for fertilization. Activated by intracellular alkalinization. (588 aa) |
| | Rpgr | X-linked retinitis pigmentosa GTPase regulator; Could be a guanine-nucleotide releasing factor (By similarity). Plays a role in ciliogenesis (By similarity). Probably regulates cilia formation by regulating actin stress filaments and cell contractility (By similarity). May be involved in microtubule organization and regulation of transport in primary cilia (By similarity). Plays an important role in photoreceptor integrity. Isoform 5 may play a critical role in spermatogenesis and in intraflagellar transport processes. (1039 aa) |
| | Tbc1d21 | TBC1 domain family member 21; May act as a GTPase-activating protein for Rab family protein(s). May be involved in acrosome formation and cytoskeletal reorganization during spermiogenesis, possibly by regulating RAB3A activity. (336 aa) |
| | Abhd2 | Monoacylglycerol lipase ABHD2; Progesterone-dependent acylglycerol lipase that catalyzes hydrolysis of endocannabinoid arachidonoylglycerol (AG) from cell membrane. Acts as a progesterone receptor: progesterone-binding activates the acylglycerol lipase activity, mediating degradation of 1- arachidonoylglycerol (1AG) and 2-arachidonoylglycerol (2AG) to glycerol and arachidonic acid (AA). Also displays an ester hydrolase activity against acetyl ester, butanoate ester and hexadecanoate ester. Plays a key role in sperm capacitation in response to progesterone by mediating degradation of 2A [...] (425 aa) |
| | Tcp11 | T-complex protein 11; Plays a role in the process of sperm capacitation and acrosome reactions. Probable receptor for the putative fertilization-promoting peptide (FPP) at the sperm membrane that may modulate the activity of the adenylyl cyclase cAMP pathway ; Belongs to the TCP11 family. (567 aa) |
| | Atp1a1 | Sodium/potassium-transporting ATPase subunit alpha-1; This is the catalytic component of the active enzyme, which catalyzes the hydrolysis of ATP coupled with the exchange of sodium and potassium ions across the plasma membrane. This action creates the electrochemical gradient of sodium and potassium ions, providing the energy for active transport of various nutrients. Belongs to the cation transport ATPase (P-type) (TC 3.A.3) family. Type IIC subfamily. (1023 aa) |
| | Odf4 | Outer dense fiber protein 4; Component of the outer dense fibers (ODF) of spermatozoa which could be involved in sperm tail structure, sperm movement and general organization of cellular cytoskeleton. (290 aa) |
| | Ttc29 | Tetratricopeptide repeat protein 29. (471 aa) |
| | Tekt3 | Tektin-3; May be a structural component of the sperm flagellum. Required for normal sperm mobility; Belongs to the tektin family. (490 aa) |
| | Hyal3 | Hyaluronidase-3; Facilitates sperm penetration into the layer of cumulus cells surrounding the egg by digesting hyaluronic acid. Involved in induction of the acrosome reaction in the sperm. Involved in follicular atresia, the breakdown of immature ovarian follicles that are not selected to ovulate. Induces ovarian granulosa cell apoptosis, possibly via apoptotic signaling pathway involving CASP8 and CASP3 activation, and poly(ADP-ribose) polymerase (PARP) cleavage. Has no hyaluronidase activity in embryonic fibroblasts in vitro. Has no hyaluronidase activity in granulosa cells in vitro [...] (412 aa) |
| | Dnah1 | Dynein heavy chain 1, axonemal; Force generating protein of cilia required for sperm flagellum motility. Produces force towards the minus ends of microtubules. Dynein has ATPase activity; the force-producing power stroke is thought to occur on release of ADP (By similarity). Required in spermatozoa for the formation of the inner dynein arms and biogenesis of the axoneme (By similarity). (4250 aa) |
| | Pacrg | Parkin coregulated gene protein homolog; Suppresses cell death induced by accumulation of unfolded Pael receptor (Pael-R, a substrate of Parkin). Facilitates the formation of inclusions consisting of Pael-R, molecular chaperones, protein degradation molecules and itself when proteasome is inhibited (By similarity). (241 aa) |
| | Catsperg1 | Cation channel sperm-associated protein subunit gamma 1; Belongs to the CATSPERG family. (1098 aa) |
| | Catsper1 | Cation channel sperm-associated protein 1; Voltage-gated calcium channel that plays a central role in sperm cell hyperactivation. Controls calcium entry to mediate the hyperactivated motility, a step needed for sperm motility which is essential late in the preparation of sperm for fertilization. Activated by intracellular alkalinization. Belongs to the cation channel sperm-associated (TC 1.A.1.19) family. (686 aa) |
| | Rsph6a | Radial spoke head protein 6 homolog A. (708 aa) |
| | Tekt5 | Tektin-5; May be a structural component of the sperm flagellum. (557 aa) |
| | Dnali1 | Axonemal dynein light intermediate polypeptide 1; May play a dynamic role in flagellar motility; Belongs to the inner dynein arm light chain family. (258 aa) |
| | Akap14 | A kinase (PRKA) anchor protein 14. (536 aa) |
| | Calm2 | Calmodulin 2. (149 aa) |
| | Tsga10 | Testis-specific gene 10 protein; Plays a role in spermatogenesis. When overexpressed, prevents nuclear localization of HIF1A ; Belongs to the CEP135/TSGA10 family. (697 aa) |
| | Ift172 | Intraflagellar transport protein 172 homolog; Required for the maintenance and formation of cilia. Plays an indirect role in hedgehog (Hh) signaling, cilia being required for all activity of the hedgehog pathway. (1749 aa) |
| | Akap4 | A-kinase anchor protein 4; Major structural component of sperm fibrous sheath. Plays a role in sperm motility. (849 aa) |
| | Fscb | Fibrous sheath CABYR-binding protein; May be involved in the later stages of fibrous sheath biogenesis and spermatozoa capacitation. Inhibits ROPN1 and ROPN1L SUMOylation. Binds calcium. (1062 aa) |
| | Catsper4 | Cation channel sperm-associated protein 4; Voltage-gated calcium channel that plays a central role in sperm cell hyperactivation. Controls calcium entry to mediate the hyperactivated motility, a step needed for sperm motility which is essential late in the preparation of sperm for fertilization. Activated by intracellular alkalinization; Belongs to the cation channel sperm-associated (TC 1.A.1.19) family. (442 aa) |
| | Defb1 | Beta-defensin 1; Has bactericidal activity. May act as a ligand for C-C chemokine receptor CCR6. Positively regulates the sperm motility and bactericidal activity in a CCR6-dependent manner. Binds to CCR6 and triggers Ca2+ mobilization in the sperm which is important for its motility; Belongs to the beta-defensin family. (69 aa) |
| | Catsperb | Cation channel sperm-associated protein subunit beta; Probably involved in sperm cell hyperactivation via its association with CATSPER1. Sperm cell hyperactivation is needed for sperm motility which is essential late in the preparation of sperm for fertilization. (1109 aa) |
| | Gk2 | Glycerol kinase 2; Key enzyme in the regulation of glycerol uptake and metabolism; Belongs to the FGGY kinase family. (554 aa) |
| | Tctex1d4 | Tctex1 domain-containing protein 4. (219 aa) |
| | Catsperg2 | Cation channel sperm-associated protein subunit gamma 2; Probably involved in sperm cell hyperactivation via its association with CATSPER1. Sperm cell hyperactivation is needed for sperm motility which is essential late in the preparation of sperm for fertilization. (1145 aa) |
| | Cfap69 | Cilia- and flagella-associated protein 69; Cilium- and flagellum-associated protein. In the olfactory epithelium, regulates the speed of activation and termination of the odor response and thus contributes to the robustness of olfactory transduction pathways. Required for sperm flagellum assembly and stability. (942 aa) |
| | Txndc2 | Thioredoxin domain-containing protein 2; Probably plays a regulatory role in sperm development. May participate in regulation of fibrous sheath (FS) assembly by supporting the formation of disulfide bonds during sperm tail morphogenesis. May also be required to rectify incorrect disulfide pairing and generate suitable pairs between the FS constituents. Can reduce disulfide bonds in vitro in the presence of NADP and thioredoxin reductase. (550 aa) |
| | Catsperz | Cation channel sperm-associated protein subunit zeta; Auxiliary component of the CatSper complex, a complex involved in sperm cell hyperactivation. Sperm cell hyperactivation is needed for sperm motility which is essential late in the preparation of sperm for fertilization. Required for a distribution of the CatSper complex in linear quadrilateral nanodomains along the flagellum, maximizing fertilization inside the mammalian female reproductive tract. Together with EFCAB9, associates with the CatSper channel pore and is required for the two- row structure of each single CatSper channel. (194 aa) |
| | Cfap70 | Cilia and flagella-associated protein 70. (1141 aa) |
| | Kif9 | Kinesin-like protein KIF9. (810 aa) |
| | Saxo2 | Stabilizer of axonemal microtubules 2; Belongs to the FAM154 family. (394 aa) |
| | Spata33 | Spermatogenesis-associated protein 33. (132 aa) |
| | Pfkm | ATP-dependent 6-phosphofructokinase, muscle type; Catalyzes the phosphorylation of D-fructose 6-phosphate to fructose 1,6-bisphosphate by ATP, the first committing step of glycolysis. (780 aa) |
| | Efcab9 | EF-hand calcium-binding domain-containing protein 9; pH-dependent Ca(2+) sensor required to activate the CatSper channel, a complex involved in sperm cell hyperactivation. Sperm cell hyperactivation is needed for sperm motility which is essential late in the preparation of sperm for fertilization. Associates with the CatSper complex via direct interaction with CATSPERZ, and senses intracellular Ca(2+). Together with CATSPERZ, associates with the CatSper channel pore and is required for the two-row structure of each single CatSper channel. (216 aa) |
| | Slc9b2 | Sodium/hydrogen exchanger 9B2; Na(+)/H(+) antiporter that extrudes Na(+) or Li(+) in exchange for external protons across the membrane. Contributes to the regulation of intracellular pH, sodium homeostasis, and cell volume. Plays an important role for insulin secretion and clathrin-mediated endocytosis in beta-cells. Involved in sperm motility and fertility. It is controversial whether SLC9B2 plays a role in osteoclast differentiation or not. Belongs to the monovalent cation:proton antiporter 1 (CPA1) transporter (TC 2.A.36) family. (547 aa) |
| | Spata18 | Mitochondria-eating protein; Key regulator of mitochondrial quality that mediates the repairing or degradation of unhealthy mitochondria in response to mitochondrial damage. Mediator of mitochondrial protein catabolic process (also named MALM) by mediating the degradation of damaged proteins inside mitochondria by promoting the accumulation in the mitochondrial matrix of hydrolases that are characteristic of the lysosomal lumen. Also involved in mitochondrion degradation of damaged mitochondria by promoting the formation of vacuole-like structures (named MIV), which engulf and degrade [...] (537 aa) |
| | Dnaic2 | Dynein intermediate chain 2, axonemal; Part of the dynein complex of respiratory cilia. (623 aa) |
| | Ak1 | Adenylate kinase isoenzyme 1; Catalyzes the reversible transfer of the terminal phosphate group between ATP and AMP. Also possesses broad nucleoside diphosphate kinase activity. Plays an important role in cellular energy homeostasis and in adenine nucleotide metabolism (By similarity). May provide a mechanism to buffer the adenylate energy charge for sperm motility. (210 aa) |
| | Vps13a | Vacuolar protein sorting-associated protein 13A; May play a role in the control of protein cycling through the trans-Golgi network to early and late endosomes, lysosomes and plasma membrane. (3166 aa) |
| | Ccdc172 | Coiled-coil domain-containing protein 172. (267 aa) |
| | Spag16 | Sperm-associated antigen 16 protein; Necessary for sperm flagellar function. Plays a role in motile ciliogenesis. May help to recruit STK36 to the cilium or apical surface of the cell to initiate subsequent steps of construction of the central pair apparatus of motile cilia. (639 aa) |
| | Grk3 | Beta-adrenergic receptor kinase 2; Specifically phosphorylates the agonist-occupied form of the beta-adrenergic and closely related receptors. (688 aa) |
| | Cfap58 | Cilia- and flagella-associated protein 58. (873 aa) |
| | Ccdc189 | Coiled-coil domain-containing protein 189. (333 aa) |
| | Glipr1l1 | GLIPR1-like protein 1; Plays a role in the binding between sperm and oocytes. Component of epididymosomes, one type of membranous microvesicules which mediate the transfer of lipids and proteins to spermatozoa plasma membrane during epididymal maturation. Also component of the CD9-positive microvesicules found in the cauda region. (236 aa) |
| | Ak8 | Adenylate kinase 8; Nucleoside monophosphate (NMP) kinase that catalyzes the reversible transfer of the terminal phosphate group between nucleoside triphosphates and monophosphates. Has highest activity toward AMP, and weaker activity toward dAMP, CMP and dCMP. Also displays broad nucleoside diphosphate kinase activity. (479 aa) |
| | Drd2 | D(2) dopamine receptor; Dopamine receptor whose activity is mediated by G proteins which inhibit adenylyl cyclase; Belongs to the G-protein coupled receptor 1 family. (444 aa) |
| | Lyzl4 | Lysozyme-like protein 4; May be involved in fertilization. Has no detectable bacteriolytic in vitro. Has no lysozyme activity in vitro (By similarity). (145 aa) |
| | Fam71d | Family with sequence similarity 71, member D. (440 aa) |
| | Ppp3cc | Serine/threonine-protein phosphatase 2B catalytic subunit gamma isoform; Calcium-dependent, calmodulin-stimulated protein phosphatase which plays an essential role in the transduction of intracellular Ca(2+)-mediated signals. Dephosphorylates and activates transcription factor NFATC1. Dephosphorylates and inactivates transcription factor ELK1. Dephosphorylates DARPP32. (513 aa) |
| | Slc9b1 | Sodium/hydrogen exchanger 9B1; Sperm-specific Na(+)/H(+) exchanger involved in intracellular pH regulation of spermatozoa. Involved in sperm motility and fertility. (565 aa) |
| | Tcp11x2 | T-complex 11 family, X-linked 2. (503 aa) |
| | Aldoart1 | Fructose-bisphosphate aldolase; Belongs to the class I fructose-bisphosphate aldolase family. (419 aa) |
| | Nme5 | Nucleoside diphosphate kinase homolog 5; Does not seem to have NDK kinase activity. Confers protection from cell death by Bax and alters the cellular levels of several antioxidant enzymes including Gpx5. May play a role in spermiogenesis by increasing the ability of late-stage spermatids to eliminate reactive oxygen species. (211 aa) |
| | Scnn1a | Amiloride-sensitive sodium channel subunit alpha; Sodium permeable non-voltage-sensitive ion channel inhibited by the diuretic amiloride. Mediates the electrodiffusion of the luminal sodium (and water, which follows osmotically) through the apical membrane of epithelial cells. Plays an essential role in electrolyte and blood pressure homeostasis, but also in airway surface liquid homeostasis, which is important for proper clearance of mucus. Controls the reabsorption of sodium in kidney, colon, lung and eccrine sweat glands. Also plays a role in taste perception. Belongs to the amilori [...] (700 aa) |
| | Odf1 | Outer dense fiber protein 1; Component of the outer dense fibers (ODF) of spermatozoa. ODF are filamentous structures located on the outside of the axoneme in the midpiece and principal piece of the mammalian sperm tail and may help to maintain the passive elastic structures and elastic recoil of the sperm tail. (248 aa) |
| | Dnah17 | Dynein heavy chain 17, axonemal; Force generating protein of respiratory cilia. Produces force towards the minus ends of microtubules. Dynein has ATPase activity; the force-producing power stroke is thought to occur on release of ADP. Involved in sperm motility; implicated in sperm flagellar assembly (By similarity). (4453 aa) |
| | Aldoa | Fructose-bisphosphate aldolase A; Plays a key role in glycolysis and gluconeogenesis. In addition, may also function as scaffolding protein (By similarity). Belongs to the class I fructose-bisphosphate aldolase family. (418 aa) |
| | Rap1a | Ras-related protein Rap-1A; Induces morphological reversion of a cell line transformed by a Ras oncogene. Counteracts the mitogenic function of Ras, at least partly because it can interact with Ras GAPs and RAF in a competitive manner. Together with ITGB1BP1, regulates KRIT1 localization to microtubules and membranes (By similarity). Plays a role in nerve growth factor (NGF)-induced neurite outgrowth. Plays a role in the regulation of embryonic blood vessel formation. Involved in the establishment of basal endothelial barrier function. May be involved in the regulation of the vascular [...] (184 aa) |
| | Nme8 | Thioredoxin domain-containing protein 3; Probably required during the final stages of sperm tail maturation in the testis and/or epididymis, where extensive disulfide bonding of fibrous sheath (FS) proteins occurs. May be involved in the reduction of disulfide bonds within the sperm FS components. In vitro, it has neither NDP kinase nor reducing activity on disulfide bonds (By similarity). (586 aa) |
| | Marcks | Myristoylated alanine-rich C-kinase substrate; MARCKS is the most prominent cellular substrate for protein kinase C. This protein binds calmodulin, actin, and synapsin. MARCKS is a filamentous (F) actin cross-linking protein. (309 aa) |
| | Gas8 | Dynein regulatory complex subunit 4; Component of the nexin-dynein regulatory complex (N-DRC), a key regulator of ciliary/flagellar motility which maintains the alignment and integrity of the distal axoneme and regulates microtubule sliding in motile axonemes. Plays an important role in the assembly of the N-DRC linker (By similarity). Plays dual roles at both the primary (or non-motile) cilia to regulate hedgehog signaling and in motile cilia to coordinate cilia movement. Required for proper motile cilia functioning. Positively regulates ciliary smoothened (SMO)-dependent Hedgehog (Hh [...] (478 aa) |
| | Slc22a14 | Solute carrier family 22 (Organic cation transporter), member 14. (629 aa) |
| | Qrich2 | Glutamine-rich protein 2; Has an essential role in the formation of sperm flagella and flagellar structure maintainance. It acts as a suppressor of ubiquitination and degradation of proteins involved in flagellar development and motility. (592 aa) |
| | Catspere2 | Cation channel sperm-associated protein subunit epsilon-like protein. (145 aa) |
| | Hsp90aa1 | Heat shock protein HSP 90-alpha; Molecular chaperone that promotes the maturation, structural maintenance and proper regulation of specific target proteins involved for instance in cell cycle control and signal transduction. Undergoes a functional cycle that is linked to its ATPase activity which is essential for its chaperone activity. This cycle probably induces conformational changes in the client proteins, thereby causing their activation. Interacts dynamically with various co-chaperones that modulate its substrate recognition, ATPase cycle and chaperone function. Engages with a ra [...] (733 aa) |
| | Cfap65 | Cilia- and flagella-associated protein 65; May play a role in sperm motility. Belongs to the CFAP65 family. (1847 aa) |
| | Spag6 | Sperm-associated antigen 6. (509 aa) |
| | Akap3 | A-kinase anchor protein 3; May function as a regulator of both motility- and head- associated functions such as capacitation and the acrosome reaction. Belongs to the AKAP110 family. (864 aa) |
| | Gm3417 | Tctex1 domain-containing protein 3; May be an accessory component of axonemal dynein and cytoplasmic dynein 1. Candidate for involvement in male sterility. (191 aa) |
| | Ccr6 | C-C chemokine receptor type 6; Receptor for the C-C type chemokine CCL20. Binds to CCL20 and subsequently transduces a signal by increasing the intracellular calcium ion levels. Although CCL20 is its major ligand it can also act as a receptor for non-chemokine ligands such as beta-defensins. Binds to defensin DEFB1 leading to increase in intracellular calcium ions and cAMP levels. Its binding to DEFB1 is essential for the function of DEFB1 in regulating sperm motility and bactericidal activity (By similarity). Binds to defensins DEFB4 and DEFB4A/B and mediates their chemotactic effects [...] (367 aa) |
| | Rnf38 | E3 ubiquitin-protein ligase RNF38; Acts as an E3 ubiquitin-protein ligase able to ubiquitinate p53/TP53 which promotes its relocalization to discrete foci associated with PML nuclear bodies. Exhibits preference for UBE2D2 as a E2 enzyme. (464 aa) |
| | Slc26a6 | Solute carrier family 26 member 6; Apical membrane anion-exchanger with wide epithelial distribution that plays a role as a component of the pH buffering system for maintaining acid-base homeostasis. Acts as a versatile DIDS- sensitive inorganic and organic anion transporter that mediates the uptake of monovalent anions like chloride, bicarbonate, formate and hydroxyl ion and divalent anions like sulfate and oxalate. Functions in multiple exchange modes involving pairs of these anions, which include chloride-bicarbonate, chloride-oxalate, oxalate-formate, oxalate- sulfate and chloride- [...] (735 aa) |
| | Spaca3 | Sperm acrosome membrane-associated protein 3, processed form; Sperm surface membrane protein that may be involved in sperm- egg plasma membrane adhesion and fusion during fertilization. It could be a potential receptor for the egg oligosaccharide residue N- acetylglucosamine, which is present in the extracellular matrix over the egg plasma membrane. The processed form has no detectable bacteriolytic activity in vitro (By similarity); Belongs to the glycosyl hydrolase 22 family. (163 aa) |
| | Pde1a | Calcium/calmodulin-dependent 3',5'-cyclic nucleotide phosphodiesterase 1A; Cyclic nucleotide phosphodiesterase with a dual-specificity for the second messengers cAMP and cGMP, which are key regulators of many important physiological processes. Has a higher affinity for cGMP than for cAMP. (545 aa) |
| | Sqstm1 | Sequestosome-1; Autophagy receptor required for selective macroautophagy (aggrephagy). Functions as a bridge between polyubiquitinated cargo and autophagosomes. Interacts directly with both the cargo to become degraded and an autophagy modifier of the MAP1 LC3 family. Required both for the formation and autophagic degradation of polyubiquitin- containing bodies, called ALIS (aggresome-like induced structures) and links ALIS to the autophagic machinery. Involved in midbody ring degradation (By similarity). May regulate the activation of NFKB1 by TNF-alpha, nerve growth factor (NGF) and [...] (442 aa) |
| | Txndc8 | Thioredoxin domain-containing protein 8; May be required for post-translational modifications of proteins required for acrosomal biogenesis. May act by reducing disulfide bonds within the sperm (By similarity). (153 aa) |
| | Prkar1a | cAMP-dependent protein kinase type I-alpha regulatory subunit, N-terminally processed; Regulatory subunit of the cAMP-dependent protein kinases involved in cAMP signaling in cells. (381 aa) |
| | Dnah2 | Dynein heavy chain 2, axonemal; Force generating protein of respiratory cilia. Produces force towards the minus ends of microtubules. Dynein has ATPase activity; the force-producing power stroke is thought to occur on release of ADP. Involved in sperm motility; implicated in sperm flagellar assembly (By similarity); Belongs to the dynein heavy chain family. (4462 aa) |
| | Drc3 | Dynein regulatory complex subunit 3; Component of the nexin-dynein regulatory complex (N-DRC) a key regulator of ciliary/flagellar motility which maintains the alignment and integrity of the distal axoneme and regulates microtubule sliding in motile axonemes. (523 aa) |
| | Ttll8 | Protein monoglycylase TTLL8; Monoglycylase which modifies both tubulin and non-tubulin proteins, generating side chains of glycine on the gamma-carboxyl groups of specific glutamate residues of target proteins. Monoglycylates tubulin, with a preference for alpha-tubulin toward beta-tubulin. Has the ability to modify non-tubulin proteins such as ANP32A, ANP32B, SET and NCL. Involved in the side-chain initiation step of the glycylation reaction by adding a single glycine chain to generate monoglycine side chains. Not involved in elongation step of the polyglycylation reaction. (832 aa) |
| | Atp1a4 | Sodium/potassium-transporting ATPase subunit alpha-4; This is the catalytic component of the active enzyme, which catalyzes the hydrolysis of ATP coupled with the exchange of sodium and potassium ions across the plasma membrane. This action creates the electrochemical gradient of sodium and potassium ions, providing the energy for active transport of various nutrients. Plays a role in sperm motility (By similarity); Belongs to the cation transport ATPase (P-type) (TC 3.A.3) family. Type IIC subfamily. (1032 aa) |
| | Ran | GTP-binding nuclear protein Ran; GTPase involved in nucleocytoplasmic transport, participating both to the import and the export from the nucleus of proteins and RNAs. Switches between a cytoplasmic GDP- and a nuclear GTP-bound state by nucleotide exchange and GTP hydrolysis. Nuclear import receptors such as importin beta bind their substrates only in the absence of GTP- bound RAN and release them upon direct interaction with GTP-bound RAN, while export receptors behave in the opposite way. Thereby, RAN controls cargo loading and release by transport receptors in the proper compartment [...] (216 aa) |
| | Catsperd | Cation channel sperm-associated protein subunit delta; Auxiliary component of the CatSper complex, a complex involved in sperm cell hyperactivation. Sperm cell hyperactivation is needed for sperm motility which is essential late in the preparation of sperm for fertilization. Required for CATSPER1 stability before intraflagellar transport and/or incorporation of the CatSper complex channel into the flagellar membrane. (805 aa) |
| | Atg16l1 | Autophagy-related protein 16-1; Plays an essential role in autophagy: interacts with ATG12- ATG5 to mediate the conjugation of phosphatidylethanolamine (PE) to LC3 (MAP1LC3A, MAP1LC3B or MAP1LC3C), to produce a membrane-bound activated form of LC3 named LC3-II. Thereby, controls the elongation of the nascent autophagosomal membrane. Regulates mitochondrial antiviral signaling (MAVS)-dependent type I interferon (IFN-I) production (By similarity). Negatively regulates NOD1- and NOD2-driven inflammatory cytokine response. Instead, promotes with NOD2 an autophagy-dependent antibacterial pa [...] (623 aa) |
| | Pcdh11x | Protocadherin 11 X-linked. (1320 aa) |
| | Tcte1 | Dynein regulatory complex subunit 5; Component of the nexin-dynein regulatory complex (N-DRC) a key regulator of ciliary/flagellar motility which maintains the alignment and integrity of the distal axoneme and regulates microtubule sliding in motile axonemes. May play a role in the assembly of N-DRC (By similarity). Required for sperm motility. (498 aa) |
| | Odf2 | Outer dense fiber protein 2; Seems to be a major component of sperm tail outer dense fibers (ODF). ODFs are filamentous structures located on the outside of the axoneme in the midpiece and principal piece of the mammalian sperm tail and may help to maintain the passive elastic structures and elastic recoil of the sperm tail. May have a modulating influence on sperm motility. Functions as a general scaffold protein that is specifically localized at the distal/subdistal appendages of mother centrioles. Component of the centrosome matrix required for the localization of PLK1 and NIN to th [...] (826 aa) |
| | Cfap53 | Cilia- and flagella-associated protein 53; May play a role in the beating of primary cilia and thereby be involved in the establishment of organ laterality during embryogenesis. (514 aa) |
| | Iqcg | Dynein regulatory complex protein 9; Component of the nexin-dynein regulatory complex (N-DRC), a key regulator of ciliary/flagellar motility which maintains the alignment and integrity of the distal axoneme and regulates microtubule sliding in motile axonemes. Binds calmodulin when cellular Ca(2+) levels are low and thereby contributes to the regulation of calcium and calmodulin-dependent protein kinase IV (CAMK4) activity; contributes to the regulation of CAMK4 signaling cascades (By similarity). Required for normal axoneme assembly in sperm flagella, normal sperm tail formation and f [...] (419 aa) |
| | Sept6 | Septin-6; Filament-forming cytoskeletal GTPase. Required for normal organization of the actin cytoskeleton. Involved in cytokinesis. Forms a filamentous structure with SEPTIN12, SEPTIN6, SEPTIN2 and probably SEPTIN4 at the sperm annulus which is required for the structural integrity and motility of the sperm tail during postmeiotic differentiation (By similarity); Belongs to the TRAFAC class TrmE-Era-EngA-EngB-Septin-like GTPase superfamily. Septin GTPase family. (434 aa) |
| | Met | Hepatocyte growth factor receptor; Receptor tyrosine kinase that transduces signals from the extracellular matrix into the cytoplasm by binding to hepatocyte growth factor/HGF ligand. Regulates many physiological processes including proliferation, scattering, morphogenesis and survival. Ligand binding at the cell surface induces autophosphorylation of MET on its intracellular domain that provides docking sites for downstream signaling molecules. Following activation by ligand, interacts with the PI3-kinase subunit PIK3R1, PLCG1, SRC, GRB2, STAT3 or the adapter GAB1. Recruitment of thes [...] (1379 aa) |
| | Kif2a | Kinesin-like protein KIF2A; Plus end-directed microtubule-dependent motor required for normal brain development. May regulate microtubule dynamics during axonal growth. Required for normal progression through mitosis. Required for normal congress of chromosomes at the metaphase plate. Required for normal spindle dynamics during mitosis. Promotes spindle turnover. Implicated in formation of bipolar mitotic spindles. Has microtubule depolymerization activity (By similarity). (716 aa) |
| | Wdr66 | Cilia- and flagella-associated protein 251; Involved in spermatozoa motility (By similarity). May also regulate cilium motility through its role in the assembly of the axonemal radial spokes (By similarity). (1299 aa) |
| | Il4i1 | L-amino-acid oxidase; Lysosomal L-amino-acid oxidase with highest specific activity with phenylalanine. May play a role in lysosomal antigen processing and presentation; Belongs to the flavin monoamine oxidase family. FIG1 subfamily. (638 aa) |
| | Ift88 | Intraflagellar transport protein 88 homolog; Involved in primary cilium biogenesis. Also involved in autophagy since it is required for trafficking of ATG16L and the expansion of the autophagic compartment. (825 aa) |
| | Atp2b4 | Plasma membrane calcium-transporting ATPase 4; Calcium/calmodulin-regulated and magnesium-dependent enzyme that catalyzes the hydrolysis of ATP coupled with the transport of calcium out of the cell (By similarity). By regulating sperm cell calcium homeostasis, may play a role in sperm motility ; Belongs to the cation transport ATPase (P-type) (TC 3.A.3) family. Type IIB subfamily. (1205 aa) |
| | Fsip2 | Fibrous sheath-interacting protein 2; Plays a role in spermatogenesis. (6995 aa) |
| | Spaca9 | Sperm acrosome-associated protein 9. (168 aa) |
| | Slirp | SRA stem-loop-interacting RNA-binding protein, mitochondrial; RNA-binding protein that acts as a nuclear receptor corepressor. Probably acts by binding the SRA RNA, and repressing the SRA-mediated nuclear receptor coactivation. Binds the STR7 loop of SRA RNA. Also able to repress glucocorticoid (GR), androgen (AR), thyroid (TR) and VDR-mediated transactivation (By similarity). (112 aa) |
| | Sept7 | Septin-7; Filament-forming cytoskeletal GTPase. Required for normal organization of the actin cytoskeleton. Required for normal progress through mitosis. Involved in cytokinesis. Required for normal association of CENPE with the kinetochore. Plays a role in ciliogenesis and collective cell movements. Forms a filamentous structure with SEPTIN12, SEPTIN6, SEPTIN2 and probably SEPTIN4 at the sperm annulus which is required for the structural integrity and motility of the sperm tail during postmeiotic differentiation (By similarity). (437 aa) |
| | Ddx6 | Probable ATP-dependent RNA helicase DDX6; In the process of mRNA degradation, plays a role in mRNA decapping (By similarity). Blocks autophagy in nutrient-rich conditions by repressing the expression of ATG-related genes through degradation of their transcripts ; Belongs to the DEAD box helicase family. DDX6/DHH1 subfamily. (483 aa) |
| | Cul3 | Cullin-3; Core component of multiple cullin-RING-based BCR (BTB-CUL3- RBX1) E3 ubiquitin-protein ligase complexes which mediate the ubiquitination and subsequent proteasomal degradation of target proteins (By similarity). BCR complexes and ARIH1 collaborate in tandem to mediate ubiquitination of target proteins (By similarity). As a scaffold protein may contribute to catalysis through positioning of the substrate and the ubiquitin-conjugating enzyme (By similarity). The E3 ubiquitin-protein ligase activity of the complex is dependent on the neddylation of the cullin subunit and is inhi [...] (768 aa) |
| | Sept12 | Septin 12; Belongs to the TRAFAC class TrmE-Era-EngA-EngB-Septin-like GTPase superfamily. Septin GTPase family. (317 aa) |
| | Sept2-2 | Septin 2. (361 aa) |
| | Cfap221 | Cilia- and flagella-associated protein 221; May play a role in cilium morphogenesis. Belongs to the PCDP1 family. (836 aa) |
| | Tomm20 | Mitochondrial import receptor subunit TOM20 homolog; Central component of the receptor complex responsible for the recognition and translocation of cytosolically synthesized mitochondrial preproteins. Together with TOM22 functions as the transit peptide receptor at the surface of the mitochondrion outer membrane and facilitates the movement of preproteins into the TOM40 translocation pore (By similarity). Required for the translocation across the mitochondrial outer membrane of cytochrome P450 monooxygenases. (145 aa) |
| | Gapdhs | Glyceraldehyde-3-phosphate dehydrogenase, testis-specific; May play an important role in regulating the switch between different pathways for energy production during spermiogenesis and in the spermatozoon. Required for sperm motility and male fertility. (440 aa) |
| | Flacc1 | Flagellum-associated coiled-coil domain-containing protein 1. (423 aa) |
| | Dcdc2c | Doublecortin domain-containing protein 2C. (179 aa) |
| | Cabyr | Calcium-binding tyrosine phosphorylation-regulated protein; May function as a regulator of both motility- and head- associated functions such as capacitation and the acrosome reaction. May bind calcium in vitro (By similarity). (453 aa) |
| | Cfap47 | Cilia and flagella-associated protein 47. (3184 aa) |
| | Oaz3 | Ornithine decarboxylase antizyme 3; Ornithine decarboxylase (ODC) antizyme protein that negatively regulates ODC activity and intracellular polyamine biosynthesis and uptake in response to increased intracellular polyamine levels. Binds to ODC monomers, inhibiting the assembly of the functional ODC homodimers. Does not target the ODC monomers for degradation, which allows a protein synthesis-independent restoration of ODC activity. Stabilizes AZIN2 by interfering with its ubiquitination. Involved in the translocation of AZNI2 from ER-Golgi intermediate compartment (ERGIC) to the cytoso [...] (243 aa) |
| | Eno4 | Enolase 4; Required for sperm motility, function and male fertility. May be involved in the normal assembly of the sperm fibrous sheath and provides most of the enolase activity in sperm. (618 aa) |
| | Dnajb13 | DnaJ homolog subfamily B member 13; Plays a role in the formation of the central complex of ciliary and flagellar axonemes. (316 aa) |
| | Ldha | L-lactate dehydrogenase A chain; Belongs to the LDH/MDH superfamily. LDH family. (361 aa) |
| | Tmem249 | Transmembrane protein 249. (171 aa) |
| | Dnah8 | Dynein heavy chain 8, axonemal; Force generating protein of respiratory cilia. Produces force towards the minus ends of microtubules. Dynein has ATPase activity; the force-producing power stroke is thought to occur on release of ADP. Involved in sperm motility; implicated in sperm flagellar assembly. (4731 aa) |
| | Calm1 | Calmodulin-1; Belongs to the calmodulin family. (197 aa) |
| | Catspere1 | Cation channel sperm-associated protein subunit epsilon; Auxiliary component of the CatSper complex, a complex involved in sperm cell hyperactivation. Sperm cell hyperactivation is needed for sperm motility which is essential late in the preparation of sperm for fertilization. Belongs to the CATSPERD family. (956 aa) |
