Journal
TRENDS IN PLANT SCIENCE
Volume 11, Issue 3, Pages 152-158Publisher
ELSEVIER SCIENCE LONDON
DOI: 10.1016/j.tplants.2006.01.007
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CP43, encoded by the psbC gene, is a chlorophyll (Chl)-binding protein of Photosystem l (PSll), the water-splitting and oxygen-evolving enzyme of photosynthesis. CP47, encoded by psbB, a Chl-binding protein of PSll, is closely related to CP43. The Chl-binding six transmembrane helical unit typified by CP43, is also structurally related to the N-terminal domains of the PsaA and PsaB proteins of Photosystem l (PSl) as well as to the family of light-harvesting proteins encoded by cyanobacterial isiA genes and prochlorophyte pcb genes. Here we use recent structural information derived for PSll and PSl to review similarities and differences between the various members of the CP43-like class of light-harvesting proteins, exploring both functional and evolutionary implications.
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