Premium
Two sites of interaction of ferredoxin with thylakoids
Author(s) -
Forti Giorgio,
Grubas Paola Maria Giovanna
Publication year - 1985
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(85)80698-0
Subject(s) - ferredoxin , ferredoxin—nadp(+) reductase , thylakoid , photosystem i , ferredoxin thioredoxin reductase , chemistry , reductase , biochemistry , biophysics , photochemistry , photosystem ii , biology , photosynthesis , enzyme , chloroplast , glutathione , thioredoxin reductase , gene
The interaction of ferredoxin with thylakoids is shown to occur at two distinct sites: at the reducing end of photosystem I, and at the site where ferredoxin‐NADP reductase (FNR) is located on the membrane. The evidence is based on the lack of inhibition of ferredoxin photoreduction by the extraction of FNR or its inactivation by an antibody, and on the difference between K m values for ferredoxin in reactions requiring FNR as compared to those only requiring ferredoxin.