Fotosistem II

Peter Podbevšek

Fotosinteza

Cooper, G.M. (2000) The cell : a molecular approach. 2nd ed. ASM Press.

PS IIThermosynechococcus elongatus

19 proteinskih podenot 36x klorofil a 7x β-karoten OEC - oxygen-evolving centre hem b hem c 2x plastokinon 2x feofitin Fe 2x bikarbonat

Reakcija

Iwata, S. and Barber, J. (2004) Structure of photosystem II and molecular architecture of the oxygen-evolving centre. Current Opinion in Structural Biology, 14, 447-453.

PS II – proteinski del

PDB: 1S5LFerreira, K.N., Iverson, T.M., Maghlaoui, K., Barber, J. and Iwata, S. (2004) Architecture of the photosynthetic oxygen-evolving center. Science, 303, 1831-1838.

PS II - kofaktorji

Prenos elektronov

OEC – Mn3CaO4

PS II

650 kDa proteinski kompleks X-ray struktura rešena pri 3,5 Å Rešena struktura OEC Predlagan mehanizem oksidacije H2O