ALB3 Insertase Mediates Cytochrome b₆ Co-translational Import into the Thylakoid Membrane.

ABSTRACT: The cytochrome b₆ f complex occupies an electrochemically central position in the electron-transport chain bridging the photosynthetic reaction center of PS I and PS II. In plants, the subunits of these thylakoid membrane protein complexes are both chloroplast and nuclear encoded. How the chloroplast-encoded subunits of multi-spanning cytochrome b₆ are targeted and inserted into the thylakoid membrane is not fully understood. Experimental approaches to evaluate the cytochrome b₆ import mechanism in vivo have been limited to bacterial membranes and were not a part of the chloroplast environment. To evaluate the mechanism governing cytochrome b₆ integration in vivo, we performed a comparative analysis of both native and synthetic cytochrome b₆

SUBMITTER: Kroliczewski J 

PROVIDER: S-EPMC5048292 | biostudies-literature | 2016 Oct

REPOSITORIES: biostudies-literature