GUCA1B | |||||||||||||||||||||||||||||||||||||||||||||||||||
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Aliases | GUCA1B , GCAP2, GUCA2, RP48, guanylate cyclase activator 1B, GCAP 2 | ||||||||||||||||||||||||||||||||||||||||||||||||||
External IDs | OMIM: 602275 MGI: 1194489 HomoloGene: 1586 GeneCards: GUCA1B | ||||||||||||||||||||||||||||||||||||||||||||||||||
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Wikidata | |||||||||||||||||||||||||||||||||||||||||||||||||||
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Guanylyl cyclase-activating protein 2 is an enzyme that in humans is encoded by the GUCA1B gene. [5] [6] Alternative names: [7]
Guanylyl cyclase-activating protein 2 is proposed to play a role in dark adaptation. [8] Under scotopic conditions, calcium ions bind to three putative EF-hand calcium binding motifs which reduces the protein's ability to stimulate guanylyl cyclase. [8] This contributes to the maintained responsiveness of rod photoreceptors through hyperpolarizing them during sustained darkness.
Guanylate cyclase is a lyase enzyme that converts guanosine triphosphate (GTP) to cyclic guanosine monophosphate (cGMP) and pyrophosphate:
Guanylate cyclase 2C, also known as guanylyl cyclase C (GC-C), intestinal guanylate cyclase, guanylate cyclase-C receptor, or the heat-stable enterotoxin receptor (hSTAR) is an enzyme that in humans is encoded by the GUCY2C gene.
Guanylin is a 15 amino acid peptide that is secreted by goblet cells in the colon. Guanylin acts as an agonist of the guanylyl cyclase receptor GC-C and regulates electrolyte and water transport in intestinal and renal epithelia. Upon receptor binding, guanylin increases the intracellular concentration of cGMP, induces chloride secretion and decreases intestinal fluid absorption, ultimately causing diarrhoea. The peptide stimulates the enzyme through the same receptor binding region as the heat-stable enterotoxins.
Rhodopsin kinase is a serine/threonine-specific protein kinase involved in phototransduction. This enzyme catalyses the following chemical reaction:
Retinal guanylyl cyclase 1 also known as guanylate cyclase 2D, retinal is an enzyme that in humans is encoded by the GUCY2D gene.
Natriuretic peptide receptor A/guanylate cyclase A , also known as NPR1, is an atrial natriuretic peptide receptor. In humans it is encoded by the NPR1 gene.
Bestrophin-1 (Best1) is a protein that, in humans, is encoded by the BEST1 gene.
Retinal pigment epithelium-specific 65 kDa protein, also known as retinoid isomerohydrolase, is an enzyme of the vertebrate visual cycle that is encoded in humans by the RPE65 gene. RPE65 is expressed in the retinal pigment epithelium and is responsible for the conversion of all-trans-retinyl esters to 11-cis-retinol during phototransduction. 11-cis-retinol is then used in visual pigment regeneration in photoreceptor cells. RPE65 belongs to the carotenoid oxygenase family of enzymes.
Rod cGMP-specific 3',5'-cyclic phosphodiesterase subunit beta is the beta subunit of the protein complex PDE6 that is encoded by the PDE6B gene. PDE6 is crucial in transmission and amplification of visual signal. The existence of this beta subunit is essential for normal PDE6 functioning. Mutations in this subunit are responsible for retinal degeneration such as retinitis pigmentosa or congenital stationary night blindness.
Guanylyl cyclase-activating protein 1 is an enzyme that in humans is encoded by the GUCA1A gene.
Guanylate cyclase soluble subunit beta-1 is an enzyme that in humans is encoded by the GUCY1B3 gene.
Retinol dehydrogenase 12 is an enzyme that in humans is encoded by the RDH12 gene.
Guanylate cyclase soluble subunit alpha-3 is an enzyme that in humans is encoded by the GUCY1A3 gene.
Retinol dehydrogenase 14 is an enzyme that in humans is encoded by the RDH14 gene.
Regulator of G-protein signalling 9, also known as RGS9, is a human gene, which codes for a protein involved in regulation of signal transduction inside cells. Members of the RGS family, such as RGS9, are signaling proteins that suppress the activity of G proteins by promoting their deactivation.[supplied by OMIM]
Short-chain dehydrogenase/reductase 3 is an enzyme that in humans is encoded by the DHRS3 gene.
Guanylate cyclase soluble subunit alpha-2 is an enzyme that in humans is encoded by the GUCY1A2 gene.
Potassium voltage-gated channel subfamily V member 2 is a protein that in humans is encoded by the KCNV2 gene. The protein encoded by this gene is a voltage-gated potassium channel subunit.
Retinal guanylyl cyclase 2 also known as guanylate cyclase F (GUCY2F) is a protein that in humans is encoded by the GUCY2F gene.
Guanylate cyclase activator 2B is a protein that in humans is encoded by the GUCA2B gene.