Prokhorenko IR, Makhneva ZK, Erokhin YE
Institute of Soil Science and Photosynthesis, Russian Academy of Sciences, Pushchino, Moscow Region, 142292, Russia. andrei@issp. serpukhov.su.
Biochemistry (Mosc). 1998 Oct;63(10):1205-8.
The effect of diethyl pyrocarbonate on chromatophores and isolated pigment--protein complexes of Chromatium minutissimum was studied. It is shown that modification of histidine residues results in the destruction of the core antenna LHI (B880) and in a spectral shift from 850 to 830 nm in the peripheral antenna LHII (B800-850). In the purple sulfur bacterium Chromatium minutissimum the pigment--protein complexes B800-B850 (peripheral antenna, LHII) and B880 (core antenna, LHI) collect and transmit the absorbed light energy to the reaction centers. The composition of pigments and proteins as well as primary structure of the majority of polypeptides in both types of complexes from various photosynthetic bacteria have been determined.
研究了焦碳酸二乙酯对极小色杆菌的色素细胞和分离的色素 - 蛋白质复合物的影响。结果表明，组氨酸残基的修饰导致核心天线LHI（B880）的破坏以及外周天线LHII（B800 - 850）中光谱从850 nm移至830 nm。在紫色硫细菌极小色杆菌中，色素 - 蛋白质复合物B800 - B850（外周天线，LHII）和B880（核心天线，LHI）收集并将吸收的光能传递到反应中心。已经确定了来自各种光合细菌的这两种复合物中色素和蛋白质的组成以及大多数多肽的一级结构。
