| Literature DB >> 3141920 |
H G Khorana1, B E Knox, E Nasi, R Swanson, D A Thompson.
Abstract
Xenopus oocytes express a gene encoding bovine rhodopsin as well as its SP6 RNA polymerase-derived transcripts and total retinal mRNA. The opsin produced is in unglycosylated (30 kDa) and two glycosylated (35 kDa and 41 kDa) forms. Incubation of the cells expressing the above proteins with 11-cis-retinal generates rhodopsin, which was purified by immunoaffinity chromatography. The purified protein shows the expected UV/visible absorption spectrum and characteristic light-dependent activation of the rod outer segment GTP binding protein. Oocytes expressing rhodopsin exhibit light-dependent ionic currents that are detected by voltage-clamp techniques.Entities:
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Year: 1988 PMID: 3141920 PMCID: PMC282324 DOI: 10.1073/pnas.85.21.7917
Source DB: PubMed Journal: Proc Natl Acad Sci U S A ISSN: 0027-8424 Impact factor: 11.205