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Light‐induced D1 protein degradation is catalyzed by a serine‐type protease
Author(s) -
Virgin Ivar,
Salter A.Hugh,
Ghanotakis Demetrios F.,
Andersson Bertil
Publication year - 1991
Publication title -
febs letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.593
H-Index - 257
eISSN - 1873-3468
pISSN - 0014-5793
DOI - 10.1016/0014-5793(91)80031-w
Subject(s) - serine protease , photosystem ii , protease , serine , chemistry , spinach , degradation (telecommunications) , proteases , biochemistry , protein degradation , photosystem i , enzyme , biophysics , biology , photosynthesis , telecommunications , computer science
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.