GUCA1B

From English Wikipedia @ Freddythechick

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Guanylyl cyclase-activating protein 2 is an enzyme that in humans is encoded by the GUCA1B gene.[1][2] Alternative names:[3]

Biological Role

Guanylyl cyclase-activating protein 2 is proposed to play a role in dark adaptation.[4] Under scotopic conditions, calcium ions bind to three putative EF-hand calcium binding motifs which reduces the protein's ability to stimulate guanylyl cyclase.[4] This contributes to the maintained responsiveness of rod photoreceptors through hyperpolarizing them during sustained darkness.

References

  1. ^ Surguchov A, Bronson JD, Banerjee P, Knowles JA, Ruiz C, Subbaraya I, et al. (February 1997). "The human GCAP1 and GCAP2 genes are arranged in a tail-to-tail array on the short arm of chromosome 6 (p21.1)". Genomics. 39 (3): 312–22. doi:10.1006/geno.1996.4513. PMID 9119368.
  2. ^ "Entrez Gene: GUCA1B guanylate cyclase activator 1B (retina)".
  3. ^ "GUCA1B - Guanylyl cyclase-activating protein 2 - Bos taurus (Bovine) - GUCA1B gene & protein". www.uniprot.org. Retrieved 2017-10-09.
  4. ^ 4.0 4.1 Gorczyca WA, Gray-Keller MP, Detwiler PB, Palczewski K (April 1994). "Purification and physiological evaluation of a guanylate cyclase activating protein from retinal rods". Proceedings of the National Academy of Sciences of the United States of America. 91 (9): 4014–8. Bibcode:1994PNAS...91.4014G. doi:10.1073/pnas.91.9.4014. PMC 43713. PMID 7909609.

Further reading

External links