| Literature DB >> 26190886 |
Tatsuo Suzsuki1, Akihisa Terakita2, Andrew T C Tsin3.
Abstract
Activities of retinylester hydrolase (REHase) and retinol dehydrogenase (RDHase) were detected in the crayfish retina which has two visual pigment chromophores and three stored retinoids.RDHase and 11-cis REHase activities were localized to rhabdomal fraction and enzymes were specific to 11-cis isomers of substrates. Overall reaction from retinylester to retinal was highly specific to 11-cis isomers and this reaction was not selective between retinol and dehydroretinol.When 11-cis [3H]-retinol was incubated with retina homogenates, radioactivity was detected in 11-cis dehydroretinol.These results suggest that retinol is converted to dehydroretinol after hydrolysis of retinylesters.Entities:
Year: 1993 PMID: 26190886 PMCID: PMC4505922 DOI: 10.1016/0305-0491(93)90226-U
Source DB: PubMed Journal: Comp Biochem Physiol B ISSN: 0305-0491