Relationship between the 43 kDa chlorophyll‐protein of PS II and the rapidly metabolized 32 kDa QB protein

FEBS Letters

Machold, O.¹ 

[1] Zentralinstitut für Genetik und Kulturpflanzenforschung der AdW, 4325 Gatersleben, FRG

关键词: Chlorophyll-protein QB protein Reaction center Photosystem II (Vicia faba);   

DOI  :  10.1016/0014-5793(86)80844-4

学科分类：生物化学/生物物理

来源: John Wiley & Sons Ltd.

【 摘 要 】

The chlorophyll-proteins of L-[³⁵S]methionine-labelled thylakoid membranes isolated from cycloheximide-treated Vicia faba plants were electrophoretically separated and correlated to the rapidly metabolized Q_B protein. Additionally, the chlorophyll a-protein band with the highest specific radioactivity was excised and subjected to denaturing re-electrophoresis. Based on these experiments it is presumed that the native Q_B protein is associated with pigments and represents a protein moiety of the 43 kDa chlorophyll a-protein (Chl a-P3) of PS II. This is reconcilable with the hypothesis that the Q_B protein carries the reaction center of PS II as deduced from its homology to the L and M subunits of the bacterial reaction center complex.

【 授权许可】

Unknown