Biogenesis of cytochrome b6 in photosynthetic membranes.

Abstract excerpt

In chloroplasts, binding of a c'-heme to cytochrome b(6) on the stromal side of the thylakoid membranes requires a specific mechanism distinct from the one at work for c-heme binding to cytochromes f and c(6) on the lumenal side of membranes. Here, we show that the major protein components of this pathway, the CCBs, are bona fide transmembrane proteins. We demonstrate their association in a series of...

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