Synthesis and applicability of photolabile 7,7-azo analogues of natural bile salt precursors.

In an approach to the identification of proteins involved in the side chain degradation of bile salt biosynthesis, the photolabile 7,7-azo derivatives of 5 beta-cholestane-3 alpha,7 alpha,12 alpha-triol, 5 beta-cholestane-3 alpha,7 alpha,12 alpha,26-tetrol and 3 alpha,7 alpha,12 alpha-trihydroxy-5 b...

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Main Authors: T Gengenbacher, W Gerok, U Giese, G Kurz
Format: Article
Language:English
Published: Elsevier 1990-02-01
Series:Journal of Lipid Research
Online Access:http://www.sciencedirect.com/science/article/pii/S0022227520432171
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author T Gengenbacher
W Gerok
U Giese
G Kurz
author_facet T Gengenbacher
W Gerok
U Giese
G Kurz
author_sort T Gengenbacher
collection DOAJ
description In an approach to the identification of proteins involved in the side chain degradation of bile salt biosynthesis, the photolabile 7,7-azo derivatives of 5 beta-cholestane-3 alpha,7 alpha,12 alpha-triol, 5 beta-cholestane-3 alpha,7 alpha,12 alpha,26-tetrol and 3 alpha,7 alpha,12 alpha-trihydroxy-5 beta-cholestan-26-oate were synthesized. All 7,7-azo derivatives were metabolized by intact rat liver and freshly isolated rat hepatocytes in the same manner as the nonphotolabile physiological intermediates, resulting in the formation of the 7,7-azo analogues of cholyltaurine and cholylglycine. Photolysis of all three photolabile derivatives, using a light source with a maximum emission at 350 nm, occurred with a half-life of 2.1 min; their efficacy for photoaffinity labeling was demonstrated by incorporation into rat serum albumin.
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spelling doaj.art-1d57e42f019a40da9941daed9f18c9232022-12-21T20:26:41ZengElsevierJournal of Lipid Research0022-22751990-02-01312315327Synthesis and applicability of photolabile 7,7-azo analogues of natural bile salt precursors.T Gengenbacher0W Gerok1U Giese2G Kurz3Institut für Organische Chemie and Biochemie, Universität Freiburg, F.R.G.Institut für Organische Chemie and Biochemie, Universität Freiburg, F.R.G.Institut für Organische Chemie and Biochemie, Universität Freiburg, F.R.G.Institut für Organische Chemie and Biochemie, Universität Freiburg, F.R.G.In an approach to the identification of proteins involved in the side chain degradation of bile salt biosynthesis, the photolabile 7,7-azo derivatives of 5 beta-cholestane-3 alpha,7 alpha,12 alpha-triol, 5 beta-cholestane-3 alpha,7 alpha,12 alpha,26-tetrol and 3 alpha,7 alpha,12 alpha-trihydroxy-5 beta-cholestan-26-oate were synthesized. All 7,7-azo derivatives were metabolized by intact rat liver and freshly isolated rat hepatocytes in the same manner as the nonphotolabile physiological intermediates, resulting in the formation of the 7,7-azo analogues of cholyltaurine and cholylglycine. Photolysis of all three photolabile derivatives, using a light source with a maximum emission at 350 nm, occurred with a half-life of 2.1 min; their efficacy for photoaffinity labeling was demonstrated by incorporation into rat serum albumin.http://www.sciencedirect.com/science/article/pii/S0022227520432171
spellingShingle T Gengenbacher
W Gerok
U Giese
G Kurz
Synthesis and applicability of photolabile 7,7-azo analogues of natural bile salt precursors.
Journal of Lipid Research
title Synthesis and applicability of photolabile 7,7-azo analogues of natural bile salt precursors.
title_full Synthesis and applicability of photolabile 7,7-azo analogues of natural bile salt precursors.
title_fullStr Synthesis and applicability of photolabile 7,7-azo analogues of natural bile salt precursors.
title_full_unstemmed Synthesis and applicability of photolabile 7,7-azo analogues of natural bile salt precursors.
title_short Synthesis and applicability of photolabile 7,7-azo analogues of natural bile salt precursors.
title_sort synthesis and applicability of photolabile 7 7 azo analogues of natural bile salt precursors
url http://www.sciencedirect.com/science/article/pii/S0022227520432171
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AT ugiese synthesisandapplicabilityofphotolabile77azoanaloguesofnaturalbilesaltprecursors
AT gkurz synthesisandapplicabilityofphotolabile77azoanaloguesofnaturalbilesaltprecursors