CHARACTERIZATION OF THE SINGLE PSBA GENE OF PROCHLOROCOCCUS-MARINUS CCMP-1375 (PROCHLOROPHYTA)

被引:39
作者
HESS, WR [1 ]
WEIHE, A [1 ]
LOISEAUXDEGOER, S [1 ]
PARTENSKY, F [1 ]
VAULOT, D [1 ]
机构
[1] OBSERV OCEANOL ROSCOFF, CNRS, UPR 4601, F-29680 ROSCOFF, FRANCE
关键词
CYANOBACTERIA; GENE COPY NUMBER; LIGHT REGULATION; PHOTOSYNTHESIS; PHOTOSYSTEM II REACTION CENTER; POLYMERASE CHAIN REACTION; PSBA;
D O I
10.1007/BF00020892
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
DNA sequence, copy number, expression and phylogenetic relevance of the psbA gene from the abundant marine prokaryote P. marinus CCMP 1375 was analyzed. The 7 amino acids near the C-terminus missing in higher plant and in Prochlorothrix hollandica DI proteins are present in the derived amino acid sequence. P. marinus contains only a single psbA gene. Thus, this organism lacks the ability to adapt its photosystem II by replacement of one type of D1 by another, as several cyanobacteria do. Phylogenetic trees suggested the D1-1 iso-form from Synechococcus PCC 7942 as the next related D1 protein and place P. marinus separately from Prochlorothrix hollandica among the cyanobacteria.
引用
收藏
页码:1189 / 1196
页数:8
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