GUCA1B

Protein-coding gene in the species Homo sapiens From Wikipedia, the free encyclopedia

Guanylyl cyclase-activating protein 2 is an enzyme that in humans is encoded by the GUCA1B gene.[5][6] Alternative names:[7]

AliasesGUCA1B, GCAP2, GUCA2, RP48, guanylate cyclase activator 1B, GCAP 2
End42,194,956 bp[1]
Quick facts Identifiers, Aliases ...
GUCA1B
Identifiers
AliasesGUCA1B, GCAP2, GUCA2, RP48, guanylate cyclase activator 1B, GCAP 2
External IDsOMIM: 602275; MGI: 1194489; HomoloGene: 1586; GeneCards: GUCA1B; OMA:GUCA1B - orthologs
Orthologs
SpeciesHumanMouse
Entrez
Ensembl
UniProt
RefSeq (mRNA)

NM_002098

NM_146079

RefSeq (protein)

NP_002089

NP_666191

Location (UCSC)Chr 6: 42.18 – 42.19 MbChr 17: 47.7 – 47.7 Mb
PubMed search[3][4]
Wikidata
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Biological Role

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.

References

Further reading

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