NMR studies of fluorinated visual pigment analogs.
NMR studies of fluorinated visual pigment analogs.
http://www.ncbi.nlm.nih.gov/corehtml...PubMedLink.gif Related Articles NMR studies of fluorinated visual pigment analogs. Biochem Biophys Res Commun. 1991 Sep 30;179(3):1337-43 Authors: Colmenares LU, Asato AE, Denny M, Mead D, Zingoni JP, Liu RS The 19F-nmr chemical shift data of isomeric pigments (11-cis and 9-cis) of four vinyl fluororhodopsins and two trifluororhodopsins have been recorded. When compared with model protonated Schiff bases, a set of F-nmr opsin shift parameter (FOS) was obtained. The data revealed regiospecific protein perturbations on the F-resonances. They can be interpreted in terms of specific protein interactions such as the postulated second point charge and other polar interactions as well as the common hydrophobic protein perturbation. PMID: 1930178 [PubMed - indexed for MEDLINE] Source: PubMed |
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