FEATURES

FAMILY

DESCRIPTION

Also known as PSBO_THEVL, psbO. Part of the oxygen-evolving complex associated with photosystem II (PSII). PSII is a light-driven water plastoquinone oxidoreductase, using light energy to abstract electrons from H(2)O, generating a proton gradient subsequently used for ATP formation. The cyanobacterial oxygen-evolving complex is composed of PsbO, PsbP, PsbQ, PsbV and PsbU. PsbP and PsbQ are not seen in the crystal structures; however there is biochemical evidence that they are part of the OEC (By similarity). Cyanobacterial PSII is composed of 1 copy each of membrane proteins PsbA, PsbB, PsbC, PsbD, PsbE, PsbF, PsbH, PsbI, PsbJ, PsbK, PsbL, PsbM, PsbT, PsbX, PsbY, PsbZ, Ycf12, 3 peripheral proteins PsbO, PsbU, PsbV and a large number of cofactors. It forms dimeric complexes.

EXTERNAL LINKS

psbO

Photosystem II manganese-stabilizing polypeptide

psbO

Molecular Synopsis