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Influence of thylakoid protein phosphorylation on photosystem I photochemistry
Author(s) -
Forti Giorgio,
Vianelli Alberto
Publication year - 1988
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(88)80709-9
Subject(s) - thylakoid , photosystem ii , photochemistry , photosystem i , phosphorylation , electron transport chain , photosystem , chemistry , cytochrome b6f complex , light harvesting complexes of green plants , biophysics , absorption (acoustics) , p700 , photosynthesis , chlorophyll , light intensity , chloroplast , biology , biochemistry , physics , optics , gene , organic chemistry
The influence of the phosphorylation of thylakoid proteins on photosystem I photochemistry has been measured under conditions of linear dependence of the rate of electron transport to NADP on light intensity. It was found that the phosphorylation by ATP of light harvesting chlorophyll protein complex (LHC) II and other polypeptides stimulates the rate up to ∼ 40%; the stimulation is larger when the wavelength of actinic light corresponds to the main absorption of LHC II.