Evidence for a hetero-oligomeric structure of the chloroplast cytochrome b -559
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چکیده
منابع مشابه
Evidence for a hetero-oligomeric structure of the chloroplast cytochrome b-559
A second nonhomologous polypeptide in the thyiakoid membrane cytochrome b-559 has been suggested by the finding of a smaller reading frame just slightly downstream from that corresponding to the 9 kDa cytochrome polypeptide that is dominant on a Coomassie-stained gel. This reading frame encoded a 39residue polypeptide that was similar in having a central hydrophobic domain of 25-26 residues and...
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Cytochrome b-559 was purified from spinach leaves and antibodies were made against it in rabbit. Using affinity-purified, monospecific antibodies, we have found that cytochrome b-559, which is closely associated with the primary photochemical activity of photosystem II, is localized exclusively in the grana thylakoids.
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Although cytochrome b-559 has long been known as a membrane-bound redox component closely linked to the reaction center of the oxygen-generating photosystem (PSII), its role in photosynthesis has remained obscure. This paper reports evidence and outlines a hypothesis in support of a "b-559 cycle"-i.e., a light-induced, cytochrome b-559-dependent, cyclic electron transport pathway around PSII th...
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ژورنال
عنوان ژورنال: FEBS Letters
سال: 1985
ISSN: 0014-5793
DOI: 10.1016/0014-5793(85)80005-3