Photosystem II: Difference between revisions

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{{STRUCTURE_1s5l|  PDB=1s5l  | SIZE=400| SCENE= |right|CAPTION=Photosystem II, [[1s5l]] }}
{{STRUCTURE_1s5l|  PDB=1s5l  | SIZE=400| SCENE= |right|CAPTION=Photosystem II, [[1s5l]] }}


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==Oxygen Evolution==
==Oxygen Evolution==
Another important facet of Photosystem II is its ability to oxidize water to oxygen with its <scene name='Photosystem_II/Oxygen_evolving_centers/11'>oxygen evolving centers</scene>.  These centers are <scene name='Photosystem_II/Single_oxygen_evolving/1'>cubane-like</scene> structures with 3 '''<FONT COLOR="#8D38C9">manganese</FONT>''', 4 '''<FONT COLOR="#C11B17">oxygen</FONT>''' and a '''<FONT COLOR="#59E817">calcium</FONT>''' linked to a fourth manganese<ref>PMID: 14764885</ref>.  Oxidation of water leaves 2 H <sup>+</sup> on the lumenal side of the membrane, helping to establish the proton gradient essential for ATP synthesis in the CF<sub>1</sub>CF<sub>0</sub>-ATP sythase protein.
Another important facet of Photosystem II is its ability to oxidize water to oxygen with its <scene name='Photosystem_II/Oxygen_evolving_centers/11'>oxygen evolving centers</scene>.  These centers are <scene name='Photosystem_II/Single_oxygen_evolving/1'>cubane-like</scene> structures with 3 '''<FONT COLOR="#8D38C9">manganese</FONT>''', 4 '''<FONT COLOR="#C11B17">oxygen</FONT>''' and a '''<FONT COLOR="#59E817">calcium</FONT>''' linked to a fourth manganese<ref>PMID: 14764885</ref>.  Oxidation of water leaves 2 H <sup>+</sup> on the lumenal side of the membrane, helping to establish the proton gradient essential for ATP synthesis in the CF<sub>1</sub>CF<sub>0</sub>-ATP sythase protein.
==3D structures of photosystem II==
[[3arc]], [[3a0b]], [[3a0h]] – PSII – Thermosynechococcus vulcanos<br />
[[3prq]], [[3prr]] - TePSII + terbutryn – Thermosynechococcus elongates<br />
[[3kzi]], [[3bz1]], [[3bz2]], [[2axt]], [[1w5c]], [[1s5l]], [[1izl]], [[1ilx]], [[1fe1]] – TePSII<br />
[[2kvo]] – SyPSII reaction center PSB28 protein – Synechocystis – NMR<br />
[[2kmf]], [[2knd]] - SyPSII reaction center PSB27 subunit – NMR<br />
[[2vu4]], [[1vyk]] – spPSII PSBP subunit – spinach<br />
[[1nze]] - spPSII PSBQ subunit<br />
[[1v2b]] - PSII PSBP subunit – tobacco


==Additional Resources==
==Additional Resources==

Proteopedia Page Contributors and Editors (what is this?)Proteopedia Page Contributors and Editors (what is this?)

Emily Forschler, Eran Hodis, Jaime Prilusky, Ilan Samish, David Canner, Eric Martz, Karl Oberholser, Michal Harel, Alexander Berchansky, Joel L. Sussman