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PDE6B phosphodiesterase 6B

Gene ID: 5158, updated on 2-Nov-2024
Gene type: protein coding
Also known as: rd1; PDEB; RP40; CSNB3; CSNBAD2; GMP-PDEbeta

Summary

Photon absorption triggers a signaling cascade in rod photoreceptors that activates cGMP phosphodiesterase (PDE), resulting in the rapid hydrolysis of cGMP, closure of cGMP-gated cation channels, and hyperpolarization of the cell. PDE is a peripheral membrane heterotrimeric enzyme made up of alpha, beta, and gamma subunits. This gene encodes the beta subunit. Mutations in this gene result in retinitis pigmentosa and autosomal dominant congenital stationary night blindness. Multiple transcript variants encoding different isoforms have been found for this gene. [provided by RefSeq, Feb 2009]

Genomic context

Location:
4p16.3
Sequence:
Chromosome: 4; NC_000004.12 (625573..670782)
Total number of exons:
23

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