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Opn1mw | Medium-wave-sensitive opsin 1; Visual pigments are the light-absorbing molecules that mediate vision. They consist of an apoprotein, opsin, covalently linked to cis-retinal. May increase spectral sensitivity in dim light. Belongs to the G-protein coupled receptor 1 family. Opsin subfamily. (359 aa) | ||||
Grk1 | Rhodopsin kinase GRK1; Retina-specific kinase involved in the signal turnoff via phosphorylation of rhodopsin (RHO), the G protein- coupled receptor that initiates the phototransduction cascade. This rapid desensitization is essential for scotopic vision and permits rapid adaptation to changes in illumination. May play a role in the maintenance of the outer nuclear layer in the retina ; Belongs to the protein kinase superfamily. AGC Ser/Thr protein kinase family. GPRK subfamily. (564 aa) | ||||
Rs1 | Retinoschisin; Binds negatively charged membrane lipids, such as phosphatidylserine and phosphoinositides. May play a role in cell-cell adhesion processes in the retina, via homomeric interaction between octamers present on the surface of two neighboring cells (By similarity). Required for normal structure and function of the retina. (224 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) | ||||
Pde6b | Rod cGMP-specific 3',5'-cyclic phosphodiesterase subunit beta; This protein participates in processes of transmission and amplification of the visual signal. Necessary for the formation of a functional phosphodiesterase holoenzyme. (856 aa) | ||||
Lrat | Lecithin retinol acyltransferase; Transfers the acyl group from the sn-1 position of phosphatidylcholine to all-trans retinol, producing all-trans retinyl esters (By similarity). Retinyl esters are storage forms of vitamin A (By similarity). LRAT plays a critical role in vision (By similarity). It provides the all-trans retinyl ester substrates for the isomerohydrolase which processes the esters into 11-cis-retinol in the retinal pigment epithelium; due to a membrane-associated alcohol dehydrogenase, 11 cis-retinol is oxidized and converted into 11-cis- retinaldehyde which is the chrom [...] (231 aa) | ||||
Pde6d | Retinal rod rhodopsin-sensitive cGMP 3',5'-cyclic phosphodiesterase subunit delta; Promotes the release of prenylated target proteins from cellular membranes. Modulates the activity of prenylated or palmitoylated Ras family members by regulating their subcellular location. Required for normal ciliary targeting of farnesylated target proteins, such as INPP5E (By similarity). Modulates the subcellular location of target proteins by acting as a GTP specific dissociation inhibitor (GDI). Increases the affinity of ARL3 for GTP by several orders of magnitude. Stabilizes ARL3-GTP by decreasin [...] (150 aa) | ||||
Rp1 | Oxygen-regulated protein 1; Microtubule-associated protein regulating the stability and length of the microtubule-based axoneme of photoreceptors. Required for the differentiation of photoreceptor cells, it plays a role in the organization of the outer segment of rod and cone photoreceptors ensuring the correct orientation and higher-order stacking of outer segment disks along the photoreceptor axoneme. (2095 aa) | ||||
Mip | Lens fiber major intrinsic protein; Water channel. Channel activity is down-regulated by CALM when cytoplasmic Ca(2+) levels are increased. May be responsible for regulating the osmolarity of the lens. Interactions between homotetramers from adjoining membranes may stabilize cell junctions in the eye lens core. Plays a role in cell-to-cell adhesion and facilitates gap junction coupling (By similarity). Belongs to the MIP/aquaporin (TC 1.A.8) family. (263 aa) | ||||
Pde6g | Retinal rod rhodopsin-sensitive cGMP 3',5'-cyclic phosphodiesterase subunit gamma; Participates in processes of transmission and amplification of the visual signal. cGMP-PDEs are the effector molecules in G- protein-mediated phototransduction in vertebrate rods and cones; Belongs to the rod/cone cGMP-PDE gamma subunit family. (87 aa) | ||||
Rdh5 | Retinol dehydrogenase 5; Catalyzes the oxidation of cis-isomers of retinol, including 11-cis-, 9-cis-, and 13-cis-retinol in an NAD-dependent manner. Has no activity towards all-trans retinal (By similarity). Plays a significant role in 11-cis retinol oxidation in the retinal pigment epithelium cells (RPE). Also recognizes steroids (androsterone, androstanediol) as its substrates (By similarity). ECO:0000250|UniProtKB:Q92781, ; Belongs to the short-chain dehydrogenases/reductases (SDR) family. (318 aa) | ||||
Pde6c | Cone cGMP-specific 3',5'-cyclic phosphodiesterase subunit alpha; As cone-specific cGMP phosphodiesterase, it plays an essential role in light detection and cone phototransduction by rapidly decreasing intracellular levels of cGMP. Belongs to the cyclic nucleotide phosphodiesterase family. (861 aa) | ||||
Cngb3 | Cyclic nucleotide-gated cation channel beta-3; Visual signal transduction is mediated by a G-protein coupled cascade using cGMP as second messenger. This protein can be activated by cGMP which leads to an opening of the cation channel and thereby causing a depolarization of rod photoreceptors. Essential for the generation of light-evoked electrical responses in the red-, green- and blue sensitive cones (By similarity). Induced a flickering channel gating, weakened the outward rectification in the presence of extracellular calcium, increased sensitivity for L-cis diltiazem and enhanced [...] (694 aa) | ||||
Unc119 | Protein unc-119 homolog A; Involved in synaptic functions in photoreceptor cells, the signal transduction in immune cells as a Src family kinase activator, endosome recycling, the uptake of bacteria and endocytosis, protein trafficking in sensory neurons and as lipid-binding chaperone with specificity for a diverse subset of myristoylated proteins. Specifically binds the myristoyl moiety of a subset of N-terminally myristoylated proteins and is required for their localization. Binds myristoylated GNAT1 and is required for G-protein localization and trafficking in sensory neurons. Proba [...] (262 aa) | ||||
Rpgrip1 | X-linked retinitis pigmentosa GTPase regulator-interacting protein 1; May function as scaffolding protein. Required for normal location of RPGR at the connecting cilium of photoreceptor cells. Required for normal disk morphogenesis and disk organization in the outer segment of photoreceptor cells and for survival of photoreceptor cells. (1331 aa) | ||||
Cabp1 | Calcium-binding protein 1; Modulates calcium-dependent activity of inositol 1,4,5- triphosphate receptors (ITPRs). Inhibits agonist-induced intracellular calcium signaling. Enhances inactivation and does not support calcium- dependent facilitation of voltage-dependent P/Q-type calcium channels (By similarity). Causes calcium-dependent facilitation and inhibits inactivation of L-type calcium channels by binding to the same sites as calmodulin in the C-terminal domain of CACNA1C, but has an opposite effect on channel function. Suppresses the calcium-dependent inactivation of CACNA1D. Inh [...] (350 aa) | ||||
Pdcl | Phosducin-like protein; Functions as a co-chaperone for CCT in the assembly of heterotrimeric G protein complexes, facilitates the assembly of both Gbeta-Ggamma and RGS-Gbeta5 heterodimers. Acts also as a positive regulator of hedgehog signaling and regulates ciliary function ; Belongs to the phosducin family. (301 aa) | ||||
Arr3 | Arrestin-C; May play a role in an as yet undefined retina-specific signal transduction. Could binds to photoactivated-phosphorylated red/green opsins. (381 aa) | ||||
Cacna1f | Voltage-dependent L-type calcium channel subunit alpha-1F; Voltage-sensitive calcium channels (VSCC) mediate the entry of calcium ions into excitable cells and are also involved in a variety of calcium-dependent processes, including muscle contraction, hormone or neurotransmitter release, gene expression, cell motility, cell division and cell death. The isoform alpha-1F gives rise to L-type calcium currents. Long-lasting (L-type) calcium channels belong to the 'high-voltage activated' (HVA) group. They are blocked by dihydropyridines (DHP), phenylalkylamines, and by benzothiazepines (B [...] (1984 aa) | ||||
Slc45a2 | Membrane-associated transporter protein; Melanocyte differentiation antigen. May transport substances required for melanin biosynthesis (By similarity); Belongs to the glycoside-pentoside-hexuronide (GPH) cation symporter transporter (TC 2.A.2) family. (530 aa) | ||||
Bfsp2 | Phakinin; Required for the correct formation and organization of lens intermediate filaments as part of a complex composed of BFSP1, BFSP2 and CRYAA. (416 aa) | ||||
Pde6h | Retinal cone rhodopsin-sensitive cGMP 3',5'-cyclic phosphodiesterase subunit gamma; Participates in processes of transmission and amplification of the visual signal. cGMP-PDEs are the effector molecules in G- protein-mediated phototransduction in vertebrate rods and cones; Belongs to the rod/cone cGMP-PDE gamma subunit family. (83 aa) | ||||
Prcd | Photoreceptor disk component PRCD; Involved in vision; Belongs to the PRCD family. (53 aa) | ||||
Cnnm4 | Metal transporter CNNM4; Probable metal transporter. The interaction with the metal ion chaperone COX11 suggests that it may play a role in sensory neuron functions (By similarity). May play a role in biomineralization and retinal function. (771 aa) | ||||
Cabp2 | Calcium-binding protein 2; Required for sound encoding at inner hair cells (IHCs) synapses, likely via inhibition of the inactivation of voltage-gated calcium channel of type 1.3 (Cav1.3) in the IHCs. Required for the normal transfer of light signals through the retina. (221 aa) | ||||
Grm6 | Metabotropic glutamate receptor 6; G-protein coupled receptor for glutamate. Ligand binding causes a conformation change that triggers signaling via guanine nucleotide-binding proteins (G proteins) and modulates the activity of down-stream effectors, such as adenylate cyclase. Signaling inhibits adenylate cyclase activity (By similarity). Signaling stimulates TRPM1 channel activity and Ca(2+) uptake. Required for normal vision. (871 aa) | ||||
Vsx2 | Visual system homeobox 2; Acts as a transcriptional regulator through binding to DNA at the consensus sequence 5'-[TC]TAATT[AG][AG]-3' upstream of gene promoters. Plays a significant role in the specification and morphogenesis of the sensory retina. Mediates differentiation of V2a interneurons by repression of motor neuron gene transcription, via competitively binding to response elements that are activated by the ISL1-LHX3 complex, such as VSX1. Acts as a positive transcriptional regulator of NXNL1; regulation is significantly increased in synergy with VSX1. Acts as a negative transcr [...] (380 aa) | ||||
Pdc | Phosducin; Inhibits the transcriptional activation activity of the cone- rod homeobox CRX (By similarity). May participate in the regulation of visual phototransduction or in the integration of photoreceptor metabolism; Belongs to the phosducin family. (244 aa) | ||||
Crx | Cone-rod homeobox protein; Transcription factor that binds and transactivates the sequence 5'-TAATC[CA]-3' which is found upstream of several photoreceptor-specific genes, including the opsin genes. Acts synergistically with other transcription factors, such as NRL, RORB and RAX, to regulate photoreceptor cell-specific gene transcription. Essential for the maintenance of mammalian photoreceptors. (323 aa) | ||||
Rlbp1 | Retinaldehyde-binding protein 1; Soluble retinoid carrier essential the proper function of both rod and cone photoreceptors. Participates in the regeneration of active 11-cis-retinol and 11-cis-retinaldehyde, from the inactive 11- trans products of the rhodopsin photocycle and in the de novo synthesis of these retinoids from 11-trans metabolic precursors. The cycling of retinoids between photoreceptor and adjacent pigment epithelium cells is known as the 'visual cycle'. (317 aa) | ||||
Rd3 | Protein RD3; Plays a critical role in the regulation of enzymes involved in nucleotide cycle in photoreceptors. Inhibits the basal catalytic activity and the GCAP- stimulated activity of GUCY2E and GUCY2F, two retinal guanylyl cyclases involved in the production of cGMP in photoreceptors. Involved in the transport of GUCY2E and GUCY2F to their target sites in the photoreceptor outer segment. Up-regulates the activity of GUK1, a kinase that plays also an essential role for recycling GMP and indirectly, cGMP (By similarity). Plays an important role for the survival of rods and cones in t [...] (195 aa) | ||||
Pde6a | Rod cGMP-specific 3',5'-cyclic phosphodiesterase subunit alpha; This protein participates in processes of transmission and amplification of the visual signal. (860 aa) | ||||
Cplx4 | Complexin-4; Complexin that regulates SNARE protein complex-mediated synaptic vesicle fusion. Required for the maintenance of synaptic ultrastructure in the adult retina. Positively regulates synaptic transmission through synaptic vesicle availability and exocytosis of neurotransmitters at photoreceptor ribbon synapses in the retina. Suppresses tonic photoreceptor activity and baseline 'noise' by suppression of Ca(2+) vesicle tonic release and the facilitation of evoked synchronous and asynchronous Ca(2+) vesicle release. Belongs to the complexin/synaphin family. (160 aa) | ||||
Guca1b | Guanylyl cyclase-activating protein 2; Stimulates two retinal guanylyl cyclase (GCs) GUCY2E and GUCY2F when free calcium ions concentration is low, and inhibits GUCY2E and GUCY2F when free calcium ions concentration is elevated (By similarity). This Ca(2+)-sensitive regulation of GCs is a key event in recovery of the dark state of rod photoreceptors following light exposure (By similarity). May be involved in cone photoreceptor response and recovery of response in bright light. (201 aa) | ||||
Prph2 | Peripherin-2; Essential for retina photoreceptor outer segment disk morphogenesis, may also play a role with ROM1 in the maintenance of outer segment disk structure. Required for the maintenance of retinal outer nuclear layer thickness. Required for the correct development and organization of the photoreceptor inner segment. Belongs to the PRPH2/ROM1 family. (346 aa) | ||||
Clic5 | Chloride intracellular channel protein 5; Required for normal hearing (By similarity). It is necessary for the formation of stereocilia in the inner ear and normal development of the organ of Corti. Can insert into membranes and form poorly selective ion channels that may also transport chloride ions. May play a role in the regulation of transepithelial ion absorption and secretion. Is required for the development and/or maintenance of the proper glomerular endothelial cell and podocyte architecture. Plays a role in formation of the lens suture in the eye, which is important for normal [...] (251 aa) | ||||
Rgr | RPE-retinal G protein-coupled receptor; Receptor for all-trans- and 11-cis-retinal. Binds preferentially to the former and may catalyze the isomerization of the chromophore by a retinochrome-like mechanism (By similarity). (291 aa) | ||||
Cnga3 | Cyclic nucleotide-gated cation channel alpha-3; Visual signal transduction is mediated by a G-protein coupled cascade using cGMP as second messenger. This protein can be activated by cyclic GMP which leads to an opening of the cation channel and thereby causing a depolarization of cone photoreceptors. Essential for the generation of light-evoked electrical responses in the red-, green- and blue sensitive cones (By similarity). Induced a flickering channel gating, weakened the outward rectification in the presence of extracellular calcium, increased sensitivity for L-cis diltiazem and e [...] (669 aa) | ||||
Lrit3 | Leucine-rich repeat, immunoglobulin-like domain and transmembrane domain-containing protein 3; Plays a role in the synapse formation and synaptic transmission between cone photoreceptor cells and retinal bipolar cells. Required for normal transmission of a light-evoked stimulus from the cone photoreceptor cells to the ON-bipolar cells and ON-ganglion cells in the inner retina. Required in retinal ON-bipolar cells for normal localization of the cation channel TRPM1 at dendrite tips. Seems to play a specific role in synaptic contacts made by ON-bipolar cells with cone photoreceptor pedic [...] (681 aa) | ||||
Rpe65 | Retinoid isomerohydrolase; Critical isomerohydrolase in the retinoid cycle involved in regeneration of 11-cis-retinal, the chromophore of rod and cone opsins. Catalyzes the cleavage and isomerization of all-trans-retinyl fatty acid esters to 11-cis-retinol which is further oxidized by 11-cis retinol dehydrogenase to 11-cis-retinal for use as visual chromophore. Essential for the production of 11-cis retinal for both rod and cone photoreceptors. Also capable of catalyzing the isomerization of lutein to meso-zeaxanthin an eye-specific carotenoid. The soluble form binds vitamin A (all-tra [...] (533 aa) | ||||
Rdh12 | Retinol dehydrogenase 12; Retinoids dehydrogenase/reductase with a clear preference for NADP. Displays high activity towards 9-cis, 11-cis and all-trans- retinal. Shows very weak activity toward 13-cis-retinol. Also exhibits activity, albeit with lower affinity than for retinaldehydes, towards lipid peroxidation products (C9 aldehydes) such as 4-hydroxynonenal and trans-2-nonenal (By similarity). Plays an important function in photoreceptor cells to detoxify 4-hydroxynonenal and potentially other toxic aldehyde products resulting from lipid peroxidation. Has no dehydrogenase activity t [...] (316 aa) | ||||
Rcvrn | Recoverin; Acts as a calcium sensor and regulates phototransduction of cone and rod photoreceptor cells (By similarity). Modulates light sensitivity of cone photoreceptor in dark and dim conditions. In response to high Ca(2+) levels induced by low light levels, prolongs RHO/rhodopsin activation in rod photoreceptor cells by binding to and inhibiting GRK1-mediated phosphorylation of RHO/rhodopsin (By similarity). Plays a role in scotopic vision/enhances vision in dim light by enhancing signal transfer between rod photoreceptors and rod bipolar cells. Improves rod photoreceptor sensitivi [...] (202 aa) | ||||
Gucy2e | Retinal guanylyl cyclase 1; Catalyzes the synthesis of cyclic GMP (cGMP) in rods and cones of photoreceptors. Plays an essential role in phototransduction, by mediating cGMP replenishment. May also participate in the trafficking of membrane-asociated proteins to the photoreceptor outer segment membrane. (1108 aa) | ||||
Rgs9 | Regulator of G-protein signaling 9; Inhibits signal transduction by increasing the GTPase activity of G protein alpha subunits thereby driving them into their inactive GDP-bound form. Binds to GNAT1. Involved in phototransduction; key element in the recovery phase of visual transduction. (675 aa) | ||||
Abca4 | Retinal-specific phospholipid-transporting ATPase ABCA4; Catalyzes the translocation of specific phospholipids from the extracellular/lumenal to the cytoplasmic leaflet of membrane coupled to the hydrolysis of ATP. Transports preferentially phosphatidylethanolamine. In the visual cycle, acts as an inward- directed retinoid flipase, retinoid substrates imported by ABCA4 from the extracellular or intradiscal (rod) membrane surfaces to the cytoplasmic membrane surface are all-trans-retinaldehyde (ATR) and N- retinyl-phosphatidyl-ethanolamine (NR-PE). Once transported to the cytoplasmic su [...] (2310 aa) | ||||
Gnat1 | Guanine nucleotide-binding protein G(t) subunit alpha-1; Functions as signal transducer for the rod photoreceptor RHO. Required for normal RHO-mediated light perception by the retina (By similarity). Guanine nucleotide-binding proteins (G proteins) function as transducers downstream of G protein-coupled receptors (GPCRs), such as the photoreceptor RHO. The alpha chain contains the guanine nucleotide binding site and alternates between an active, GTP-bound state and an inactive, GDP-bound state. Activated RHO promotes GDP release and GTP binding. Signaling is mediated via downstream eff [...] (350 aa) | ||||
Ppef2 | Serine/threonine-protein phosphatase with EF-hands 2; May play a role in phototransduction. May dephosphorylate photoactivated rhodopsin. May function as a calcium sensing regulator of ionic currents, energy production or synaptic transmission; Belongs to the PPP phosphatase family. (757 aa) | ||||
Rgs9bp | Regulator of G-protein signaling 9-binding protein; Regulator of G protein-coupled receptor (GPCR) signaling in phototransduction. Participates in the recovery phase of visual transduction via its interaction with RGS9-1 isoform. Acts as a membrane-anchor that mediates the targeting of RGS9-1 to the photoreceptor outer segment, where phototransduction takes place. Enhances the ability of RGS9-1 to stimulate G protein GTPase activity, allowing the visual signal to be terminated on the physiologically time scale. It also controls the proteolytic stability of RGS9-1, probably by protectin [...] (237 aa) | ||||
Slitrk6 | SLIT and NTRK-like protein 6; Regulator of neurite outgrowth required for normal hearing and vision. (840 aa) | ||||
Opn1sw | Short-wave-sensitive opsin 1; Visual pigments are the light-absorbing molecules that mediate vision. They consist of an apoprotein, opsin, covalently linked to cis-retinal (By similarity). Required for the maintenance of cone outer segment organization in the ventral retina, but not essential for the maintenance of functioning cone photoreceptors. Involved in ensuring correct abundance and localization of retinal membrane proteins. May increase spectral sensitivity in dim light. (346 aa) | ||||
Trpm1 | Transient receptor potential cation channel subfamily M member 1; Cation channel essential for the depolarizing photoresponse of retinal ON bipolar cells. It is part of the GRM6 signaling cascade. Calcium channel which may play a role in metastasis suppression. May act as a spontaneously active, calcium-permeable plasma membrane channel; Belongs to the transient receptor (TC 1.A.4) family. LTrpC subfamily. TRPM1 sub-subfamily. (1622 aa) | ||||
Cnga1 | cGMP-gated cation channel alpha-1; Subunit of the rod cyclic GMP-gated cation channel, which is involved in the final stage of the phototransduction pathway. When light hits rod photoreceptors, cGMP concentrations decrease causing rapid closure of CNGA1/CNGB1 channels and, therefore, hyperpolarization of the membrane potential. (684 aa) | ||||
Guca1a | Guanylyl cyclase-activating protein 1; Stimulates retinal guanylyl cyclase when free calcium ions concentration is low and inhibits guanylyl cyclase when free calcium ions concentration is elevated (By similarity). This Ca(2+)-sensitive regulation of retinal guanylyl cyclase is a key event in recovery of the dark state of rod photoreceptors following light exposure (By similarity). May be involved in cone photoreceptor light response and recovery of response in bright light. (202 aa) | ||||
Rom1 | Rod outer segment membrane protein 1; Plays a role in rod outer segment (ROS) morphogenesis. May play a role with PRPH2 in the maintenance of the structure of ROS curved disks (By similarity). Plays a role in the organization of the ROS and maintenance of ROS disk diameter. Involved in the maintenance of the retina outer nuclear layer. (351 aa) | ||||
Dll4 | Delta-like protein 4; Involved in the Notch signaling pathway as Notch ligand. Activates NOTCH1 and NOTCH4. Involved in angiogenesis; negatively regulates endothelial cell proliferation and migration and angiogenic sprouting (By similarity). Essential for retinal progenitor proliferation. Required for suppressing rod fates in late retinal progenitors as well as for proper generation of other retinal cell types. During spinal cord neurogenesis, inhibits V2a interneuron fate (By similarity). (686 aa) | ||||
Nyx | Nyctalopin; Belongs to the small leucine-rich proteoglycan (SLRP) family. SLRP class IV subfamily. (476 aa) | ||||
Rp1l1 | Retinitis pigmentosa 1-like 1 protein; Required for the differentiation of photoreceptor cells. Plays a role in the organization of outer segment of rod and cone photoreceptors. (1859 aa) | ||||
Myo3b | Myosin-IIIb; Probable actin-based motor with a protein kinase activity (By similarity). Required for normal cochlear hair bundle development and hearing. Plays an important role in the early steps of cochlear hair bundle morphogenesis. Influences the number and lengths of stereocilia to be produced and limits the growth of microvilli within the forming auditory hair bundles thereby contributing to the architecture of the hair bundle, including its staircase pattern. Involved in the elongation of actin in stereocilia tips by transporting the actin regulatory factor ESPN to the plus ends [...] (1333 aa) | ||||
Bbs1 | Bardet-Biedl syndrome 1 protein homolog; The BBSome complex is thought to function as a coat complex required for sorting of specific membrane proteins to the primary cilia. The BBSome complex is required for ciliogenesis but is dispensable for centriolar satellite function. This ciliogenic function is mediated in part by the Rab8 GDP/GTP exchange factor, which localizes to the basal body and contacts the BBSome. Rab8(GTP) enters the primary cilium and promotes extension of the ciliary membrane. Firstly the BBSome associates with the ciliary membrane and binds to RAB3IP/Rabin8, the gua [...] (593 aa) | ||||
Gnat2 | Guanine nucleotide-binding protein G(t) subunit alpha-2; Guanine nucleotide-binding proteins (G proteins) are involved as modulators or transducers in various transmembrane signaling systems. Transducin is an amplifier and one of the transducers of a visual impulse that performs the coupling between rhodopsin and cGMP- phosphodiesterase; Belongs to the G-alpha family. G(i/o/t/z) subfamily. (354 aa) | ||||
Clrn1 | Clarin-1; May have a role in the excitatory ribbon synapse junctions between hair cells and cochlear ganglion cells and presumably also in analogous synapses within the retina. (250 aa) | ||||
Pcare | Photoreceptor cilium actin regulator; Plays an essential role for normal photoreceptor cell maintenance and vision. (1279 aa) | ||||
Ush2a | Usherin; Involved in hearing and vision as member of the USH2 complex. In the inner ear, required for the maintenance of hair bundle ankle formation, which connects growing stereocilia in developing cochlear hair cells. In retina photoreceptors, the USH2 complex is required for the maintenance of periciliary membrane complex that seems to play a role in regulating intracellular protein transport. (5193 aa) | ||||
Tulp1 | Tubby-related protein 1; Required for normal development of photoreceptor synapses. Required for normal photoreceptor function and for long-term survival of photoreceptor cells. Interacts with cytoskeleton proteins and may play a role in protein transport in photoreceptor cells. Binds lipids, especially phosphatidylinositol 3-phosphate, phosphatidylinositol 4- phosphate, phosphatidylinositol 5-phosphate, phosphatidylinositol 3,4- bisphosphate, phosphatidylinositol 4,5-bisphosphate, phosphatidylinositol 3,4,5-bisphosphate, phosphatidylserine and phosphatidic acid (in vitro) (By similari [...] (543 aa) | ||||
Rorb | Nuclear receptor ROR-beta; Nuclear receptor that binds DNA as a monomer to ROR response elements (RORE) containing a single core motif half-site 5'-AGGTCA-3' preceded by a short A-T-rich sequence. Considered to have intrinsic transcriptional activity, have some natural ligands such as all-trans retinoic acid (ATRA) and other retinoids which act as inverse agonists repressing the transcriptional activity. Required for normal postnatal development of rod and cone photoreceptor cells. Modulates rod photoreceptors differentiation at least by inducing the transcription factor NRL-mediated p [...] (470 aa) | ||||
Cplx3 | Complexin-3; Complexin that regulates SNARE protein complex-mediated synaptic vesicle fusion. Required for the maintenance of synaptic ultrastructure in the adult retina. Positively regulates synaptic transmission through synaptic vesicle availability and exocytosis of neurotransmitters at photoreceptor ribbon synapses in the retina. Suppresses tonic photoreceptor activity and baseline 'noise' by suppression of Ca(2+) vesicle tonic release and the facilitation of evoked synchronous and asynchronous Ca(2+) vesicle release. (158 aa) | ||||
Myo3a | Myosin-IIIa; Probable actin-based motor with a protein kinase activity. Probably plays a role in vision and hearing (By similarity). Required for normal cochlear hair bundle development and hearing. Plays an important role in the early steps of cochlear hair bundle morphogenesis. Influences the number and lengths of stereocilia to be produced and limits the growth of microvilli within the forming auditory hair bundles thereby contributing to the architecture of the hair bundle, including its staircase pattern. Involved in the elongation of actin in stereocilia tips by transporting the [...] (1621 aa) | ||||
Spata7 | Spermatogenesis-associated protein 7 homolog; Involved in the maintenance of both rod and cone photoreceptor cells. Required for photoreceptor-specific localization of proximal connecting cilium (CC) proteins RPGR, AHI1, NPHP1, NPHP4, and RPGRIP1 at the distal CC, a photoreceptor-specific extension of the primary cilium transition zone. Maintenance of protein localization at the photoreceptor-specific distal CC is essential for normal microtubule stability and to prevent photoreceptor degeneration. (582 aa) | ||||
Gucy2f | Retinal guanylyl cyclase 2; Responsible for the synthesis of cyclic GMP (cGMP) in rods and cones of photoreceptors (By similarity). Plays an essential role in phototransduction, by mediating cGMP replenishment. May also participate in the trafficking of membrane-asociated proteins to the photoreceptor outer segment membrane. (1108 aa) | ||||
Vsx1 | Visual system homeobox 1; Binds to the 37-bp core of the locus control region (LCR) of the red/green visual pigment gene cluster (By similarity). May regulate the activity of the LCR and the cone opsin genes at earlier stages of development (By similarity). Dispensable in early retinal development. (363 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) | ||||
Opa1 | Dynamin-like 120 kDa protein, mitochondrial; Dynamin-related GTPase that is essential for normal mitochondrial morphology by regulating the equilibrium between mitochondrial fusion and mitochondrial fission. Coexpression of isoform 1 with shorter alternative products is required for optimal activity in promoting mitochondrial fusion (By similarity). Binds lipid membranes enriched in negatively charged phospholipids, such as cardiolipin, and promotes membrane tubulation. The intrinsic GTPase activity is low, and is strongly increased by interaction with lipid membranes (By similarity). [...] (978 aa) | ||||
Lctl | Lactase-like protein; Plays a role in formation of the lens suture in the eye, which is important for normal optical properties of the lens. Belongs to the glycosyl hydrolase 1 family. Klotho subfamily. (566 aa) | ||||
Irx5 | Iroquois-class homeodomain protein IRX-5; Establishes the cardiac repolarization gradient by its repressive actions on the KCND2 potassium-channel gene. Required for retinal cone bipolar cell differentiation. May regulate contrast adaptation in the retina and control specific aspects of visual function in circuits of the mammalian retina. Involved in craniofacial and gonadal development (By similarity). Modulates the migration of progenitor cell populations in branchial arches and gonads by repressing CXCL12. (484 aa) |