Embedding carotenoids of spheroidene-branch biosynthesis into antenna complexes of sulfur photosynthetic bacteria

被引：2

作者：

Ashikhmin, A. A. ^{[1
]}

Makhneva, Z. K. ^{[1
]}

Bolshakov, M. A. ^{[1
]}

Shastik, E. S. ^{[1
]}

Moskalenko, A. A. ^{[1
]}

机构：

[1] Russian Acad Sci, Inst Basic Biol Problems, Ul Inst Skaya 2, Pushchino 142290, Moscow Oblast, Russia

来源：

DOKLADY BIOCHEMISTRY AND BIOPHYSICS | 2016年 / 468卷 / 01期

基金：

俄罗斯基础研究基金会;

关键词：

LIGHT-HARVESTING COMPLEXES; ALLOCHROMATIUM-MINUTISSIMUM; RHODOBACTER-SPHAEROIDES; ENERGY-TRANSFER; RECONSTITUTION; BACTERIOCHLOROPHYLL; CHROMATIUM;

D O I：

10.1134/S1607672916030042

中图分类号：

Q5 [生物化学]; Q7 [分子生物学];

学科分类号：

071010 ; 081704 ;

摘要：

The possibility of embedding the carotenoids of spheroidene-branch biosynthesis (spheroidene and spheroidenone) from non-sulfur bacteria into the diphenylamine antenna complexes (DPA-complexes) from the sulfur bacteria Allochromatium minutissimum and Ectothiorhodospira haloalkaliphila with carotenoid synthesis inhibited by diphenylamine (DPA) was studied for the first time. It was found that spheroidene was embedded into the DPA-complexes from these bacteria at a level of 75-87%, with spheroidene embedding efficiency being 41-68% for the LH1-RC DPA-complexes and 71-89% for the LH2 DPA-complexes. The energy transfer efficiency from carotenoids to bacteriochlorophyll was shown to depend not only on the type of carotenoid but also on the very structure on the antenna complex.

引用

页码：176 / 179

页数：4

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