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| | RSPH6A | Radial spoke head 6 homolog A; Belongs to the flagellar radial spoke RSP4/6 family. (717 aa) |
| | PPP3R2 | Calcineurin subunit B type 2; Regulatory subunit of calcineurin, a calcium-dependent, calmodulin stimulated protein phosphatase. Confers calcium sensitivity. (173 aa) |
| | ACTB | Actin, cytoplasmic 1, N-terminally processed; Actin is a highly conserved protein that polymerizes to produce filaments that form cross-linked networks in the cytoplasm of cells. Actin exists in both monomeric (G-actin) and polymeric (F-actin) forms, both forms playing key functions, such as cell motility and contraction. In addition to their role in the cytoplasmic cytoskeleton, G- and F-actin also localize in the nucleus, and regulate gene transcription and motility and repair of damaged DNA. (375 aa) |
| | PMIS2 | Transmembrane protein PMIS2; May play a role in spermatozoa mobility. Belongs to the CD225/Dispanin family. (150 aa) |
| | MEIKIN | Meiosis-specific kinetochore protein; Key regulator of kinetochore function during meiosis I: required both for mono-orientation of kinetochores on sister chromosomes and protection of centromeric cohesin from separase- mediated cleavage. Acts by facilitating kinetochore mono-orientation during meiosis I, when kinetochores on sister chromosomes face the same direction and are thus captured and pulled by spindle fibers from the same pole. Also required to prevent cleavage of cohesin at centromeres during meiosis I, possibly by acting as a regulator of the shugoshin- dependent protection [...] (373 aa) |
| | NXF2 | Nuclear RNA export factor 2. (626 aa) |
| | RIMBP3 | RIMS-binding protein 3A; Probable component of the manchette, a microtubule-based structure which plays a key role in sperm head morphogenesis during late stages of sperm development; Belongs to the RIMBP family. (1639 aa) |
| | MCM3 | DNA replication licensing factor MCM3; Acts as component of the MCM2-7 complex (MCM complex) which is the putative replicative helicase essential for 'once per cell cycle' DNA replication initiation and elongation in eukaryotic cells. The active ATPase sites in the MCM2-7 ring are formed through the interaction surfaces of two neighboring subunits such that a critical structure of a conserved arginine finger motif is provided in trans relative to the ATP-binding site of the Walker A box of the adjacent subunit. The six ATPase active sites, however, are likely to contribute differential [...] (853 aa) |
| | CD177 | CD177 antigen; In association with beta-2 integrin heterodimer ITGAM/CD11b and ITGB2/CD18, mediates activation of TNF-alpha primed neutrophils including degranulation and superoxide production. In addition, by preventing beta-2 integrin internalization and attenuating chemokine signaling favors adhesion over migration. Heterophilic interaction with PECAM1 on endothelial cells plays a role in neutrophil transendothelial migration in vitro. However, appears to be dispensable for neutrophil recruitment caused by bacterial infection in vivo. Acts as a receptor for the mature form of protea [...] (437 aa) |
| | RIMBP3B | RIMS-binding protein 3B; Probable component of the manchette, a microtubule-based structure which plays a key role in sperm head morphogenesis during late stages of sperm development. (1639 aa) |
| | NXF2B | Nuclear RNA export factor 2; Involved in the export of mRNA from the nucleus to the cytoplasm; Belongs to the NXF family. (626 aa) |
| | TEX101 | Testis-expressed protein 101; Plays a role in fertilization by controlling binding of sperm to zona pellucida and migration of spermatozoa into the oviduct (By similarity). May play a role in signal transduction and promote protein tyrosine phosphorylation (By similarity). (267 aa) |
| | KLK15 | Kallikrein-15; Protease whose physiological substrate is not yet known; Belongs to the peptidase S1 family. Kallikrein subfamily. (256 aa) |
| | TERB1 | Telomere repeats-binding bouquet formation protein 1; Meiosis-specific telomere-associated protein involved in meiotic telomere attachment to the nucleus inner membrane, a crucial step for homologous pairing and synapsis. Component of the MAJIN-TERB1- TERB2 complex, which promotes telomere cap exchange by mediating attachment of telomeric DNA to the inner nuclear membrane and replacement of the protective cap of telomeric chromosomes: in early meiosis, the MAJIN-TERB1-TERB2 complex associates with telomeric DNA and the shelterin/telosome complex. During prophase, the complex matures an [...] (727 aa) |
| | SPATA22 | Spermatogenesis-associated protein 22; Meiosis-specific protein required for homologous recombination in meiosis I. (363 aa) |
| | TEX38 | Testis-expressed protein 38; Testis expressed 38. (206 aa) |
| | TGIF2LY | Homeobox protein TGIF2LY; May have a transcription role in testis. May act as a competitor/regulator of TGIF2LX; Belongs to the TALE/TGIF homeobox family. (185 aa) |
| | TGIF2LX | Homeobox protein TGIF2LX; May have a transcription role in testis. (241 aa) |
| | NUTM1 | NUT family member 1; Plays a role in the regulation of proliferation. Regulates TERT expression by modulating SP1 binding to TERT promoter binding sites. (1160 aa) |
| | SSH2 | Protein phosphatase Slingshot homolog 2; Protein phosphatase which regulates actin filament dynamics. Dephosphorylates and activates the actin binding/depolymerizing factor cofilin, which subsequently binds to actin filaments and stimulates their disassembly. Inhibitory phosphorylation of cofilin is mediated by LIMK1, which may also be dephosphorylated and inactivated by this protein. (1450 aa) |
| | PIH1D3 | Protein PIH1D3; Plays a role in cytoplasmic pre-assembly of axonemal dynein. Belongs to the PIH1 family. (214 aa) |
| | CDY2B | Chromodomain Y-linked 2B. (555 aa) |
| | CFAP54 | Cilia- and flagella-associated protein 54; Required for assembly and function of cilia and flagella. (3096 aa) |
| | SPINK2 | Serine peptidase inhibitor Kazal type 2. (134 aa) |
| | MCMDC2 | Minichromosome maintenance domain-containing protein 2; Plays an important role in meiotic recombination and associated DNA double-strand break repair. (681 aa) |
| | TDRD5 | Tudor domain-containing protein 5; Required during spermiogenesis to participate in the repression transposable elements and prevent their mobilization, which is essential for the germline integrity. Probably acts via the piRNA metabolic process, which mediates the repression of transposable elements during meiosis by forming complexes composed of piRNAs and Piwi proteins and govern the methylation and subsequent repression of transposons. Required for chromatoid body (CB) assembly (By similarity). (1035 aa) |
| | CCDC155 | Protein KASH5; As a component of the LINC (LInker of Nucleoskeleton and Cytoskeleton) complex, involved in the connection between the nuclear lamina and the cytoskeleton. The nucleocytoplasmic interactions established by the LINC complex play an important role in the transmission of mechanical forces across the nuclear envelope and in nuclear movement and positioning. Required for telomere attachment to nuclear envelope in the prophase of meiosis and for rapid telomere prophase movements implicating a SUN1/2:KASH5 LINC complex in which SUN1 and SUN2 seem to act at least partial redunda [...] (562 aa) |
| | FBXO43 | F-box only protein 43; Required to establish and maintain the arrest of oocytes at the second meiotic metaphase until fertilization. Probably acts by inhibiting the anaphase-promoting complex/cyclosome (APC/C) ubiquitin ligase. Probably recognizes and binds to some phosphorylated proteins and promotes their ubiquitination and degradation (Probable). (708 aa) |
| | CDY2A | Testis-specific chromodomain protein Y 2; May have histone acetyltransferase activity. (555 aa) |
| | C11orf94 | Uncharacterized protein C11orf94; Chromosome 11 open reading frame 94. (98 aa) |
| | ANKRD34C | Ankyrin repeat domain 34C; Belongs to the ANKRD34 family. (535 aa) |
| | BTBD18 | BTB/POZ domain-containing protein 18; Specifically required during spermatogenesis to promote expression of piRNA precursors. The piRNA metabolic process mediates the repression of transposable elements during meiosis by forming complexes composed of piRNAs and Piwi proteins and governs the methylation and subsequent repression of transposons, which is essential for the germline integrity. Acts by facilitating transcription elongation at piRNA loci during pachytene. (712 aa) |
| | RIMBP3C | RIMS-binding protein 3C; Probable component of the manchette, a microtubule-based structure which plays a key role in sperm head morphogenesis during late stages of sperm development. (1639 aa) |
| | TDRD12 | Putative ATP-dependent RNA helicase TDRD12; Probable ATP-binding RNA helicase required during spermatogenesis to repress transposable elements and preventing their mobilization, which is essential for the germline integrity. Acts via the piRNA metabolic process, which mediates the repression of transposable elements during meiosis by forming complexes composed of piRNAs and Piwi proteins and governs the methylation and subsequent repression of transposons. Involved in the secondary piRNAs metabolic process. Acts via the PET complex, a multiprotein complex required during the secondary [...] (395 aa) |
| | DAZ4 | Deleted in azoospermia 4. (390 aa) |
| | BRDT | Bromodomain testis-specific protein; Testis-specific chromatin protein that specifically binds histone H4 acetylated at 'Lys-5' and 'Lys-8' (H4K5ac and H4K8ac, respectively) and plays a key role in spermatogenesis. Required in late pachytene spermatocytes: plays a role in meiotic and post-meiotic cells by binding to acetylated histones at the promoter of specific meiotic and post-meiotic genes, facilitating their activation at the appropriate time. In the post-meiotic phase of spermatogenesis, binds to hyperacetylated histones and participates in their general removal from DNA. Also re [...] (951 aa) |
| | ITGA6 | Integrin alpha-6 heavy chain; Integrin alpha-6/beta-1 (ITGA6:ITGB1) is a receptor for laminin on platelets (By similarity). Integrin alpha-6/beta-1 (ITGA6:ITGB1) is present in oocytes and is involved in sperm-egg fusion (By similarity). Integrin alpha-6/beta-4 (ITGA6:ITGB4) is a receptor for laminin in epithelial cells and it plays a critical structural role in the hemidesmosome (By similarity). ITGA6:ITGB4 binds to NRG1 (via EGF domain) and this binding is essential for NRG1-ERBB signaling. ITGA6:ITGB4 binds to IGF1 and this binding is essential for IGF1 signaling. ITGA6:ITGB4 binds t [...] (1091 aa) |
| | POTEF | POTE ankyrin domain family member F; In the C-terminal section; belongs to the actin family. (1075 aa) |
| | MEIOC | Meiosis-specific coiled-coil domain-containing protein MEIOC; Is required for meiosis completion in both male and female germ cells. Confers stability to numerous meiotic mRNAs in gonads allowing proper initiation and progression into meiosis prophase I. The function may involve YTHDC2 and is independent of induction by retinoic acid (RA). Maintains an extended meiotic prophase I by properly promoting the transition from a mitotic to a meiotic cell cycle program by binding transcripts through its interaction with YTHDC2 that regulate the mitotic cell cycle. (952 aa) |
| | RAD21L1 | Double-strand-break repair protein rad21-like protein 1; Meiosis-specific component of some cohesin complex required during the initial steps of prophase I in male meiosis. Probably required during early meiosis in males for separation of sister chromatids and homologous chromosomes. Replaces RAD21 in premeiotic S phase (during early stages of prophase I), while RAD21 reappears in later stages of prophase I. Involved in synaptonemal complex assembly, synapsis initiation and crossover recombination between homologous chromosomes during prophase I (By similarity). (556 aa) |
| | SYCE3 | Synaptonemal complex central element protein 3; Major component of the transverse central element of synaptonemal complexes (SCS), formed between homologous chromosomes during meiotic prophase. Required for chromosome loading of the central element-specific SCS proteins, and for initiating synapsis between homologous chromosomes. Chromosome loading appears to require SYCP1. Required for fertility. (88 aa) |
| | HORMAD2 | HORMA domain-containing protein 2; Essential for synapsis surveillance during meiotic prophase via the recruitment of ATR activity. Plays a key role in the male mid- pachytene checkpoint and the female meiotic prophase checkpoint: required for efficient build-up of ATR activity on unsynapsed chromosome regions, a process believed to form the basis of meiotic silencing of unsynapsed chromatin (MSUC) and meiotic prophase quality control in both sexes. Required for the DNA double-strand break- independent, BRCA1-dependent activation of ATR on the sex chromosomes that is essential for norm [...] (307 aa) |
| | TDRD15 | Tudor domain containing 15. (1934 aa) |
| | MEIG1 | Meiosis expressed gene 1 protein homolog; Essential for spermiogenesis. (88 aa) |
| | SUN1 | SUN domain-containing protein 1; As a component of the LINC (LInker of Nucleoskeleton and Cytoskeleton) complex involved in the connection between the nuclear lamina and the cytoskeleton. The nucleocytoplasmic interactions established by the LINC complex play an important role in the transmission of mechanical forces across the nuclear envelope and in nuclear movement and positioning (By similarity). Required for interkinetic nuclear migration (INM) and essential for nucleokinesis and centrosome-nucleus coupling during radial neuronal migration in the cerebral cortex and during glial m [...] (785 aa) |
| | KCNU1 | Potassium channel subfamily U member 1; Testis-specific potassium channel activated by both intracellular pH and membrane voltage that mediates export of K(+). May represent the primary spermatozoan K(+) current. In contrast to KCNMA1/SLO1, it is not activated by Ca(2+) or Mg(2+). Critical for fertility. May play an important role in sperm osmoregulation required for the acquisition of normal morphology and motility when faced with osmotic challenges, such as those experienced after mixing with seminal fluid and entry into the vagina; Belongs to the potassium channel family. Calcium-ac [...] (1149 aa) |
| | TSSK2 | Testis-specific serine/threonine-protein kinase 2; Testis-specific serine/threonine-protein kinase required during spermatid development. Phosphorylates TSKS at 'Ser-288' and SPAG16. Involved in the late stages of spermatogenesis, during the reconstruction of the cytoplasm. During spermatogenesis, required for the transformation of a ring-shaped structure around the base of the flagellum originating from the chromatoid body. (358 aa) |
| | ADGB | Androglobin. (1667 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; Belongs to the PPP phosphatase family. PP-2B subfamily. (521 aa) |
| | GAPDH | Glyceraldehyde-3-phosphate dehydrogenase; Has both glyceraldehyde-3-phosphate dehydrogenase and nitrosylase activities, thereby playing a role in glycolysis and nuclear functions, respectively. Participates in nuclear events including transcription, RNA transport, DNA replication and apoptosis. Nuclear functions are probably due to the nitrosylase activity that mediates cysteine S-nitrosylation of nuclear target proteins such as SIRT1, HDAC2 and PRKDC. Modulates the organization and assembly of the cytoskeleton. Facilitates the CHP1-dependent microtubule and membrane associations throu [...] (335 aa) |
| | MYH11 | Myosin-11; Muscle contraction; Belongs to the TRAFAC class myosin-kinesin ATPase superfamily. Myosin family. (1979 aa) |
| | ITGB1 | Integrin beta-1; Integrins alpha-1/beta-1, alpha-2/beta-1, alpha-10/beta-1 and alpha-11/beta-1 are receptors for collagen. Integrins alpha-1/beta-1 and alpha-2/beta-2 recognize the proline-hydroxylated sequence G-F-P-G- E-R in collagen. Integrins alpha-2/beta-1, alpha-3/beta-1, alpha- 4/beta-1, alpha-5/beta-1, alpha-8/beta-1, alpha-10/beta-1, alpha- 11/beta-1 and alpha-V/beta-1 are receptors for fibronectin. Alpha- 4/beta-1 recognizes one or more domains within the alternatively spliced CS-1 and CS-5 regions of fibronectin. Integrin alpha-5/beta-1 is a receptor for fibrinogen. Integrin [...] (798 aa) |
| | BRD2 | Bromodomain-containing protein 2; May play a role in spermatogenesis or folliculogenesis (By similarity). Binds hyperacetylated chromatin and plays a role in the regulation of transcription, probably by chromatin remodeling. Regulates transcription of the CCND1 gene. Plays a role in nucleosome assembly. (836 aa) |
| | PNLDC1 | Poly(A)-specific ribonuclease PNLDC1; 3'-exoribonuclease that has a preference for poly(A) tails of mRNAs, thereby efficiently degrading poly(A) tails. Exonucleolytic degradation of the poly(A) tail is often the first step in the decay of eukaryotic mRNAs and is also used to silence certain maternal mRNAs translationally during oocyte maturation and early embryonic development. May act as a regulator of multipotency in embryonic stem cells (By similarity). (531 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). (4462 aa) |
| | DAZ2 | Deleted in azoospermia 2. (558 aa) |
| | ARRDC5 | Arrestin domain containing 5; Belongs to the arrestin family. (342 aa) |
| | INSL6 | Insulin-like peptide INSL6 A chain; May have a role in sperm development and fertilization. (213 aa) |
| | RLN2 | Relaxin A chain; Relaxin is an ovarian hormone that acts with estrogen to produce dilatation of the birth canal in many mammals. May be involved in remodeling of connective tissues during pregnancy, promoting growth of pubic ligaments and ripening of the cervix. (185 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. (798 aa) |
| | FBXO47 | F-box only protein 47; Probably recognizes and binds to some phosphorylated proteins and promotes their ubiquitination and degradation. (452 aa) |
| | SPDYC | Speedy protein C; Promotes progression through the cell cycle via binding and activation of CDK1 and CDK2. Involved in the spindle-assembly checkpoint. Required for recruitment of MAD2L1, BUBR1 and BUB1 to kinetochores. Required for the correct localization of the active form of Aurora B in prometaphase. (293 aa) |
| | ACTL7B | Actin-like protein 7B; Actin like 7B; Belongs to the actin family. (415 aa) |
| | PGK1 | Phosphoglycerate kinase 1; Catalyzes one of the two ATP producing reactions in the glycolytic pathway via the reversible conversion of 1,3- diphosphoglycerate to 3-phosphoglycerate. In addition to its role as a glycolytic enzyme, it seems that PGK-1 acts as a polymerase alpha cofactor protein (primer recognition protein). May play a role in sperm motility. (417 aa) |
| | EPPIN | Eppin; Serine protease inhibitor that plays an essential role in male reproduction and fertility. Modulates the hydrolysis of SEMG1 by KLK3/PSA (a serine protease), provides antimicrobial protection for spermatozoa in the ejaculate coagulum, and binds SEMG1 thereby inhibiting sperm motility. (133 aa) |
| | HSP90AB1 | Heat shock protein HSP 90-beta; 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. 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 range of client protein classes via its interact [...] (724 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. May be required for sperm motility. (501 aa) |
| | RHOXF2 | Rhox homeobox family member 2; Transcription factor maybe involved in reproductive processes. Modulates expression of target genes encoding proteins involved in processes relevant to spermatogenesis. (288 aa) |
| | HFM1 | Probable ATP-dependent DNA helicase HFM1; Required for crossover formation and complete synapsis of homologous chromosomes during meiosis. (1435 aa) |
| | NPBWR2 | Neuropeptides B/W receptor type 2; Interacts specifically with a number of opioid ligands. Receptor for neuropeptides B and W, which may be involved in neuroendocrine system regulation, food intake and the organization of other signals; Belongs to the G-protein coupled receptor 1 family. (333 aa) |
| | NUP210L | Nuclear pore membrane glycoprotein 210-like; Nucleoporin 210 like; Belongs to the NUP210 family. (1888 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. (1029 aa) |
| | HORMAD1 | HORMA domain-containing protein 1; Plays a key role in meiotic progression. Regulates 3 different functions during meiosis: ensures that sufficient numbers of processed DNA double-strand breaks (DSBs) are available for successful homology search by increasing the steady-state numbers of single- stranded DSB ends. Promotes synaptonemal-complex formation independently of its role in homology search. Plays a key role in the male mid-pachytene checkpoint and the female meiotic prophase checkpoint: required for efficient build-up of ATR activity on unsynapsed chromosome regions, a process b [...] (394 aa) |
| | SMC1B | Structural maintenance of chromosomes protein 1B; Meiosis-specific component of cohesin complex. Required for the maintenance of meiotic cohesion, but not, or only to a minor extent, for its establishment. Contributes to axial element (AE) formation and the organization of chromatin loops along the AE. Plays a key role in synapsis, recombination and chromosome movements. The cohesin complex is required for the cohesion of sister chromatids after DNA replication. The cohesin complex apparently forms a large proteinaceous ring within which sister chromatids can be trapped. At anaphase, t [...] (1235 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. (379 aa) |
| | OCLN | Occludin; May play a role in the formation and regulation of the tight junction (TJ) paracellular permeability barrier. It is able to induce adhesion when expressed in cells lacking tight junctions. (522 aa) |
| | SPAM1 | Hyaluronidase PH-20; Involved in sperm-egg adhesion. Upon fertilization sperm must first penetrate a layer of cumulus cells that surrounds the egg before reaching the zona pellucida. The cumulus cells are embedded in a matrix containing hyaluronic acid which is formed prior to ovulation. This protein aids in penetrating the layer of cumulus cells by digesting hyaluronic acid; Belongs to the glycosyl hydrolase 56 family. (511 aa) |
| | ENO4 | Enolase 4; May be required for sperm motility and function. (625 aa) |
| | SPATA16 | Spermatogenesis-associated protein 16; Involved in the formation of sperm acrosome, which implicated its potential role in spermatogenesis and sperm-egg fusion. (569 aa) |
| | CNBD2 | Cyclic nucleotide-binding domain-containing protein 2; Essential for male fertility. Plays an important role in spermatogenesis and regulates sperm motility by controlling the development of the flagellar bending of sperm. (572 aa) |
| | EEF1A1 | Elongation factor 1-alpha 1; This protein promotes the GTP-dependent binding of aminoacyl- tRNA to the A-site of ribosomes during protein biosynthesis. With PARP1 and TXK, forms a complex that acts as a T helper 1 (Th1) cell-specific transcription factor and binds the promoter of IFN-gamma to directly regulate its transcription, and is thus involved importantly in Th1 cytokine production; Belongs to the TRAFAC class translation factor GTPase superfamily. Classic translation factor GTPase family. EF-Tu/EF-1A subfamily. (462 aa) |
| | SPDYA | Speedy protein A; Regulates the G1/S phase transition of the cell cycle by binding and activating CDK1 and CDK2. Contributes to CDK2 activation without promoting CDK2 phosphorylation, by inducing a conformation change of the CDK2 T-loop that obstructs the substrate- binding cleft prior to kinase activation. Mediates cell survival during the DNA damage process through activation of CDK2. Belongs to the Speedy/Ringo family. (313 aa) |
| | CFAP73 | Cilia- and flagella-associated protein 73; May play a role in ciliary/flagellar motility by regulating the assembly and the activity of axonemal inner dynein arm. Belongs to the CFAP73 family. (308 aa) |
| | PHF7 | PHD finger protein 7; May play a role in spermatogenesis. (381 aa) |
| | SYNDIG1L | Synapse differentiation-inducing gene protein 1-like; Synapse differentiation inducing 1 like. (238 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. (257 aa) |
| | C14orf39 | Protein SIX6OS1; Meiotic protein that localizes to the central element of the synaptonemal complex and is required for chromosome synapsis during meiotic recombination. Required for the appropriate processing of intermediate recombination nodules before crossover formation. (587 aa) |
| | CALR | Calreticulin; Calcium-binding chaperone that promotes folding, oligomeric assembly and quality control in the endoplasmic reticulum (ER) via the calreticulin/calnexin cycle. This lectin interacts transiently with almost all of the monoglucosylated glycoproteins that are synthesized in the ER. Interacts with the DNA-binding domain of NR3C1 and mediates its nuclear export. Involved in maternal gene expression regulation. May participate in oocyte maturation via the regulation of calcium homeostasis (By similarity); Belongs to the calreticulin family. (417 aa) |
| | CCDC114 | Coiled-coil domain-containing protein 114; Probable component of the outer dynein arm complex required along the entire axoneme for tethering of outer dynein arms. Belongs to the ODA1/DCC2 family. (670 aa) |
| | SCMH1 | Polycomb protein SCMH1; Associates with Polycomb group (PcG) multiprotein complexes; the complex class is required to maintain the transcriptionally repressive state of some genes. (660 aa) |
| | SNRNP200 | U5 small nuclear ribonucleoprotein 200 kDa helicase; Plays role in pre-mRNA splicing as core component of precatalytic, catalytic and postcatalytic spliceosomal complexes. Involved in spliceosome assembly, activation and disassembly. Mediates changes in the dynamic network of RNA-RNA interactions in the spliceosome. Catalyzes the ATP-dependent unwinding of U4/U6 RNA duplices, an essential step in the assembly of a catalytically active spliceosome. (2136 aa) |
| | PPP1R42 | Protein phosphatase 1 regulatory subunit 42; Regulates phosphatase activity of protein phosphatase 1 (PP1) complexes in the testis. (228 aa) |
| | BOLL | Protein boule-like; Probable RNA-binding protein, which may be required during spermatogenesis. May act by binding to the 3'-UTR of mRNAs and regulating their translation (By similarity); Belongs to the RRM DAZ family. (295 aa) |
| | MEIOB | Meiosis-specific with OB domain-containing protein; Single-stranded DNA-binding protein required for homologous recombination in meiosis I. Required for double strand breaks (DSBs) repair and crossover formation and promotion of faithful and complete synapsis. Not required for the initial loading of recombinases but required to maintain a proper number of RAD51 and DMC1 foci after the zygotene stage. May act by ensuring the stabilization of recombinases, which is required for successful homology search and meiotic recombination. Displays Single-stranded DNA 3'-5' exonuclease activity i [...] (471 aa) |
| | KLK3 | Prostate-specific antigen; Hydrolyzes semenogelin-1 thus leading to the liquefaction of the seminal coagulum. (261 aa) |
| | KLK2 | Kallikrein-2; Glandular kallikreins cleave Met-Lys and Arg-Ser bonds in kininogen to release Lys-bradykinin; Belongs to the peptidase S1 family. Kallikrein subfamily. (261 aa) |
| | CCDC63 | Coiled-coil domain-containing protein 63; Plays a role in spermiogenesis. Involved in the elongation of flagella and the formation of sperm heads. (563 aa) |
| | TOPAZ1 | Protein TOPAZ1; Important for normal spermatogenesis and male fertility. Specifically required for progression to the post-meiotic stages of spermatocyte development. Seems to be necessary for normal expression levels of a number of testis-expressed gene transcripts, although its role in this process is unclear. (1692 aa) |
| | CATSPER1 | Cation channel sperm-associated protein 1; Voltage-gated calcium channel that plays a central role in calcium-dependent physiological responses essential for successful fertilization, such as sperm hyperactivation, acrosome reaction and chemotaxis towards the oocyte. (780 aa) |
| | HSFY2 | Heat shock transcription factor Y-linked 2. (401 aa) |
| | PGK2 | Phosphoglycerate kinase 2; Essential for sperm motility and male fertility. Not required for the completion of spermatogenesis (By similarity); Belongs to the phosphoglycerate kinase family. (417 aa) |
| | HSFY1 | Heat shock transcription factor Y-linked 1; Belongs to the HSF family. (401 aa) |
| | SOX7 | Transcription factor SOX-7; Binds to and activates the CDH5 promoter, hence plays a role in the transcriptional regulation of genes expressed in the hemogenic endothelium and blocks further differentiation into blood precursors (By similarity). May be required for the survival of both hematopoietic and endothelial precursors during specification (By similarity). Competes with GATA4 for binding and activation of the FGF3 promoter (By similarity). Represses Wnt/beta-catenin-stimulated transcription, probably by targeting CTNNB1 to proteasomal degradation. Binds the DNA sequence 5'-AACAAT-3'. (388 aa) |
| | KLHL26 | Kelch-like protein 26; Kelch like family member 26. (615 aa) |
| | C16orf92 | Uncharacterized protein C16orf92; Chromosome 16 open reading frame 92. (132 aa) |
| | CASC4 | Protein CASC4; Belongs to the GOLM1/CASC4 family. (436 aa) |
| | PRSS37 | Probable inactive serine protease 37; Plays a role in male fertility (By similarity). May have a role in sperm migration or binding to zona-intact eggs (By similarity). Involved in the activation of the proacrosin/acrosin system ; Belongs to the peptidase S1 family. (235 aa) |
| | RAD21 | Double-strand-break repair protein rad21 homolog; [Double-strand-break repair protein rad21 homolog]: As a member of the cohesin complex, involved in sister chromatid cohesion from the time of DNA replication in S phase to their segregation in mitosis, a function that is essential for proper chromosome segregation, post-replicative DNA repair, and the prevention of inappropriate recombination between repetitive regions. The cohesin complex may also play a role in spindle pole assembly during mitosis. In interphase, cohesins may function in the control of gene expression by binding to n [...] (631 aa) |
| | CCDC42 | Coiled-coil domain-containing protein 42; Required for sperm development. (316 aa) |
| | LY6K | Lymphocyte antigen 6K; Required for sperm migration into the oviduct and male fertility by controlling binding of sperm to zona pellucida (By similarity). May play a role in cell growth. (165 aa) |
| | M1AP | Meiosis 1 arrest protein; Required for meiosis I progression during spermatogenesis. (530 aa) |
| | KCNMA1 | Calcium-activated potassium channel subunit alpha-1; Potassium channel activated by both membrane depolarization or increase in cytosolic Ca(2+) that mediates export of K(+). It is also activated by the concentration of cytosolic Mg(2+). Its activation dampens the excitatory events that elevate the cytosolic Ca(2+) concentration and/or depolarize the cell membrane. It therefore contributes to repolarization of the membrane potential. Plays a key role in controlling excitability in a number of systems, such as regulation of the contraction of smooth muscle, the tuning of hair cells in t [...] (1236 aa) |
| | LRGUK | Leucine-rich repeat and guanylate kinase domain-containing protein; Involved in multiple aspects of sperm assembly including acrosome attachment, shaping of the sperm head and in the early aspects of axoneme development. Not essential for primary cilium biogenesis. (825 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. (250 aa) |
| | ASZ1 | Ankyrin repeat, SAM and basic leucine zipper domain-containing protein 1; Plays a central role during spermatogenesis by repressing transposable elements and preventing their mobilization, which is essential for the germline integrity. Acts via the piRNA metabolic process, which mediates the repression of transposable elements during meiosis by forming complexes composed of piRNAs and Piwi proteins and governs the methylation and subsequent repression of transposons. Its association with pi-bodies suggests a participation in the primary piRNAs metabolic process. Required prior to the p [...] (475 aa) |
| | GJA1 | Gap junction alpha-1 protein; Gap junction protein that acts as a regulator of bladder capacity. A gap junction consists of a cluster of closely packed pairs of transmembrane channels, the connexons, through which materials of low MW diffuse from one cell to a neighboring cell. May play a critical role in the physiology of hearing by participating in the recycling of potassium to the cochlear endolymph. Negative regulator of bladder functional capacity: acts by enhancing intercellular electrical and chemical transmission, thus sensitizing bladder muscles to cholinergic neural stimuli a [...] (382 aa) |
| | CT55 | Cancer/testis antigen 55. (264 aa) |
| | CALR3 | Calreticulin-3; During spermatogenesis, may act as a lectin-independent chaperone for specific client proteins such as ADAM3. Required for sperm fertility (By similarity). CALR3 capacity for calcium-binding may be absent or much lower than that of CALR. (384 aa) |
| | ADAD2 | Adenosine deaminase domain containing 2. (665 aa) |
| | SOX30 | Transcription factor SOX-30; Acts as both a transcriptional activator and repressor. Binds to the DNA sequence 5'-ACAAT- 3' and shows a preference for guanine residues surrounding this core motif. Binds to its own promoter and activates its own transcription (By similarity). Required to activate the expression of postmeiotic genes involved in spermiogenesis (By similarity). Binds to the promoter region of CTNNB1 and represses its transcription which leads to inhibition of Wnt signaling. Also inhibits Wnt signaling by binding to the CTNNB1 protein, preventing interaction of CTNNB1 with [...] (753 aa) |
| | KLKB1 | Plasma kallikrein heavy chain; The enzyme cleaves Lys-Arg and Arg-Ser bonds. It activates, in a reciprocal reaction, factor XII after its binding to a negatively charged surface. It also releases bradykinin from HMW kininogen and may also play a role in the renin-angiotensin system by converting prorenin into renin; Belongs to the peptidase S1 family. Plasma kallikrein subfamily. (638 aa) |
| | BRD4 | Bromodomain-containing protein 4; Chromatin reader protein that recognizes and binds acetylated histones and plays a key role in transmission of epigenetic memory across cell divisions and transcription regulation. Remains associated with acetylated chromatin throughout the entire cell cycle and provides epigenetic memory for postmitotic G1 gene transcription by preserving acetylated chromatin status and maintaining high-order chromatin structure. During interphase, plays a key role in regulating the transcription of signal- inducible genes by associating with the P-TEFb complex and re [...] (1362 aa) |
| | IL1A | Interleukin-1 alpha; Produced by activated macrophages, IL-1 stimulates thymocyte proliferation by inducing IL-2 release, B-cell maturation and proliferation, and fibroblast growth factor activity. IL-1 proteins are involved in the inflammatory response, being identified as endogenous pyrogens, and are reported to stimulate the release of prostaglandin and collagenase from synovial cells. (271 aa) |
| | MOV10L1 | RNA helicase Mov10l1; ATP-dependent RNA helicase required during spermatogenesis to repress transposable elements and prevent their mobilization, which is essential for germline integrity. Acts via the piRNA metabolic process, which mediates the repression of transposable elements during meiosis by forming complexes composed of piRNAs and Piwi proteins and governs the methylation and subsequent repression of transposons. Involved in the primary piRNA metabolic process. Specifically binds to piRNA precursors and promotes the generation of intermediate piRNA processing fragments that are [...] (1211 aa) |
| | RIMBP2 | RIMS-binding protein 2; Plays a role in the synaptic transmission as bifunctional linker that interacts simultaneously with RIMS1, RIMS2, CACNA1D and CACNA1B. (1052 aa) |
| | NUP210 | Nuclear pore membrane glycoprotein 210; Nucleoporin essential for nuclear pore assembly and fusion, nuclear pore spacing, as well as structural integrity. (1887 aa) |
| | C3orf20 | Uncharacterized protein C3orf20; Chromosome 3 open reading frame 20. (904 aa) |
| | CCDC62 | Coiled-coil domain-containing protein 62; Nuclear receptor coactivator that can enhance preferentially estrogen receptors ESR1 and ESR2 transactivation. Modulates also progesterone/PGR, glucocorticoid/NR3C1 and androgen/AR receptors transactivation, although at lower level; little effect on vitamin D receptor/VDR. (684 aa) |
| | SCML2 | Sex comb on midleg-like protein 2; Putative Polycomb group (PcG) protein. PcG proteins act by forming multiprotein complexes, which are required to maintain the transcriptionally repressive state of homeotic genes throughout development (By similarity). (700 aa) |
| | TDRD1 | Tudor domain-containing protein 1; Plays a central role during spermatogenesis by participating in the repression transposable elements and preventing their mobilization, which is essential for the germline integrity. Acts via the piRNA metabolic process, which mediates the repression of transposable elements during meiosis by forming complexes composed of piRNAs and Piwi proteins and governs the methylation and subsequent repression of transposons. Required for the localization of Piwi proteins to the meiotic nuage. Involved in the piRNA metabolic process by ensuring the entry of corr [...] (1189 aa) |
| | TEX14 | Inactive serine/threonine-protein kinase TEX14; Required both for the formation of intercellular bridges during meiosis and for kinetochore-microtubule attachment during mitosis. Intercellular bridges are evolutionarily conserved structures that connect differentiating germ cells and are required for spermatogenesis and male fertility. Acts by promoting the conversion of midbodies into intercellular bridges via its interaction with CEP55: interaction with CEP55 inhibits the interaction between CEP55 and PDCD6IP/ALIX and TSG101, blocking cell abscission and leading to transform midbodie [...] (1497 aa) |
| | SPACA1 | Sperm acrosome membrane-associated protein 1; Plays a role in acrosome expansion and establishment of normal sperm morphology during spermatogenesis (By similarity). Important for male fertility. (294 aa) |
| | TNP1 | Spermatid nuclear transition protein 1; Plays a key role in the replacement of histones to protamine in the elongating spermatids of mammals. In condensing spermatids, loaded onto the nucleosomes, where it promotes the recruitment and processing of protamines, which are responsible for histone eviction. Belongs to the nuclear transition protein 1 family. (55 aa) |
| | FBXO5 | F-box only protein 5; Regulator of APC activity during mitotic and meiotic cell cycle. During mitotic cell cycle plays a role as both substrate and inhibitor of APC-FZR1 complex. During G1 phase, plays a role as substrate of APC-FZR1 complex E3 ligase. Then switches as an inhibitor of APC-FZR1 complex during S and G2 leading to cell-cycle commitment. As APC inhibitor, prevents the degradation of APC substrates at multiple levels: by interacting with APC and blocking access of APC substrates to the D-box coreceptor, formed by FZR1 and ANAPC10; by suppressing ubiquitin ligation and chain [...] (447 aa) |
| | RSPH4A | Radial spoke head protein 4 homolog A; Probable component of the axonemal radial spoke head. Radial spokes are regularly spaced along cilia, sperm and flagella axonemes. They consist of a thin stalk which is attached to a subfiber of the outer doublet microtubule, and a bulbous head which is attached to the stalk and appears to interact with the projections from the central pair of microtubules. (716 aa) |
| | RLN1 | Relaxin A chain; Relaxin is an ovarian hormone that acts with estrogen to produce dilatation of the birth canal in many mammals. May be involved in remodeling of connective tissues during pregnancy, promoting growth of pubic ligaments and ripening of the cervix. (185 aa) |
