Chapter 17 – The Cytochrome b6f Complex

Publisher Summary This chapter summarizes key features of the structural data, and develops insights into b6f complex function and biogenesis based on work performed in Chlamydomonas. The b6f complex forms a hetero-oligomeric integral membrane protein dimer, whose biogenesis involves the assembly of at least eight different protein subunits and two b-type hemes, two c-type hemes, one Fe2S2, one chlorophyll a, and one â-carotene per monomer. The available Chlamydomonas, higher plant and cyanobacteria genome information and mutants will certainly continue to contribute in a complementary manner to these studies.