LIGHT-INDUCED D1-PROTEIN DEGRADATION IS CATALYZED BY A SERINE-TYPE PROTEASE

被引:53
作者
VIRGIN, I [1 ]
SALTER, AH [1 ]
GHANOTAKIS, DF [1 ]
ANDERSSON, B [1 ]
机构
[1] UNIV CRETE, DEPT CHEM, HERAKLION, GREECE
关键词
D1-PROTEIN; PHOTOINHIBITION; PHOTOSYSTEM-II; PROTEASE INHIBITOR; PROTEIN TURNOVER; SERINE PROTEASE;
D O I
10.1016/0014-5793(91)80031-W
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
Light-induced degradation of the D1 protein in isolated spinach photosystem II core preparations was studied after addition of various protease inhibitors. The degradation was selectively inhibited by several serine protease inhibitors in particular diisopropylfluorophosphate. The results demonstrate that the D1 protein is degraded by a serine-type of proteolytic activity that is an integral part of photosystem II.
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页码:125 / 128
页数:4
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