EXPRESSION OF THE BARLEY PSBA GENE IN ESCHERICHIA-COLI YIELDS A FUNCTIONAL IN-VITRO PHOTOSYSTEM-II PROTEIN D1

被引:7
作者
EFIMOV, VA [1 ]
FRADKOV, AF [1 ]
RASKIND, AB [1 ]
KHRISTIN, MS [1 ]
KLIMOV, VV [1 ]
CHAKHMAKHCHEVA, OG [1 ]
机构
[1] RUSSIAN ACAD SCI,INST SOIL SCI & PHOTOSYNTH,PUSHCHINO 142292,RUSSIA
关键词
PHOTOSYSTEM II; RECOMBINANT D1 PROTEIN; HISTIDINE-BINDING DOMAIN; PROTEIN-PIGMENT COMPLEX;
D O I
10.1016/0014-5793(94)00586-9
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 barley chloroplast psbA gene encoding D1 protein, one of the main photosystem II components, has been over-expressed in E. coli cells. The existance of two in vivo expression products, a protein with Mr about 33.5 kDa, corresponding to the full-length precursor of the 32 kDa D1 mature form, and a truncated 29 kDa polypeptide was revealed. A modified D1 protein containing six histidine residues at the carboxy-terminus was also obtained. After isolation and renaturation, the ability of the recombinant D1 protein to bind atrazine and pigments from barley thylakoids was demonstrated.
引用
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页码:153 / 157
页数:5
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