5v2c

From Proteopedia

(Difference between revisions)

Revision as of 14:46, 5 September 2017

RE-REFINEMENT OF CRYSTAL STRUCTURE OF PHOTOSYSTEM II COMPLEX

Structural highlights

5v2c is a 38 chain structure with sequence from Thermosynechococcus vulcanus. Full crystallographic information is available from OCA. For a guided tour on the structure components use FirstGlance.
Ligands:	, , , , , , , , , , , , , , , , , , , , , , ,
NonStd Res:	,
Related:	3arc
Activity:	Photosystem II, with EC number 1.10.3.9
Resources:	FirstGlance, OCA, PDBe, RCSB, PDBsum, ProSAT

Function

[PSBF_THEVL] This b-type cytochrome is tightly associated with the reaction center of 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.[HAMAP-Rule:MF_00643] [PSBL_THEVL] This protein is a component of the reaction center of 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.[HAMAP-Rule:MF_01317] [PSBC_THEVL] This protein binds multiple antenna chlorophylls and is part of the core of 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. [PSBJ_THEVL] This protein is a component of the reaction center of 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.[HAMAP-Rule:MF_01305] [PSBB_THEVL] This protein binds multiple antenna chlorophylls and is part of the core of 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. [YCF12_THEVL] A core subunit of 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. [PSBM_THEVL] This protein is a component of the reaction center of 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.[HAMAP-Rule:MF_00438] [PSBU_THEVL] Stabilizes the structure of photosystem II (PSII) oxygen-evolving complex (OEC), the ion environment of oxygen evolution and protects the OEC against heat-induced inactivation. Requires cytochrome c-550 (PsbV) or OEC3 (PsbO) to bind to 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.^[1] [PSBT_THEVL] Seems to play a role in the dimerization of 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.[HAMAP-Rule:MF_00808] [PSBI_THEVL] A component of the reaction center of 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.[HAMAP-Rule:MF_01316] [PSBD_THEVL] D1 (PsbA) and D2 (PsbD) bind P680, the primary electron donor of photosystem II (PSII) as well as electron acceptors. 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. D2 is needed for assembly of a stable PSII complex.[HAMAP-Rule:MF_01383] [PSBA_THEVL] D1 (PsbA) and D2 (PsbD) bind P680, the primary electron donor of photosystem II (PSII) as well as electron acceptors. 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.[HAMAP-Rule:MF_01379] [PSBX_THEVL] Involved in the binding and/or turnover of quinones at the Q(B) site of 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.[HAMAP-Rule:MF_01386] [PSBZ_THEVL] Controls the interaction of photosystem II (PSII) cores with the light-harvesting antenna. 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.[HAMAP-Rule:MF_00644] [PSBK_THEVL] This protein is a component of the reaction center of 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. [PSBO_THEVL] 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. [CY550_THEVL] Low-potential cytochrome c that plays a role in the oxygen-evolving complex of photosystem II (PSII). Binds to PSII in the absence of other extrinsic proteins; required for binding of the PsbU protein to photosystem II. In PSII particles without oxygen-evolving activity, maximal activity is restored only by binding of cytochrome c550, PsbU and the 33 kDa PsbO protein. 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.^[2] ^[3] [PSBE_THEVL] This b-type cytochrome is tightly associated with the reaction center of 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.[HAMAP-Rule:MF_00642]

Publication Abstract from PubMed

Photosystem II is the site of photosynthetic water oxidation and contains 20 subunits with a total molecular mass of 350 kDa. The structure of photosystem II has been reported at resolutions from 3.8 to 2.9 A. These resolutions have provided much information on the arrangement of protein subunits and cofactors but are insufficient to reveal the detailed structure of the catalytic centre of water splitting. Here we report the crystal structure of photosystem II at a resolution of 1.9 A. From our electron density map, we located all of the metal atoms of the Mn(4)CaO(5) cluster, together with all of their ligands. We found that five oxygen atoms served as oxo bridges linking the five metal atoms, and that four water molecules were bound to the Mn(4)CaO(5) cluster; some of them may therefore serve as substrates for dioxygen formation. We identified more than 1,300 water molecules in each photosystem II monomer. Some of them formed extensive hydrogen-bonding networks that may serve as channels for protons, water or oxygen molecules. The determination of the high-resolution structure of photosystem II will allow us to analyse and understand its functions in great detail.

Crystal structure of oxygen-evolving photosystem II at a resolution of 1.9 A.,Umena Y, Kawakami K, Shen JR, Kamiya N Nature. 2011 May 5;473(7345):55-60. Epub 2011 Apr 17. PMID:21499260^[4]

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.

References

↑ Shen JR, Ikeuchi M, Inoue Y. Stoichiometric association of extrinsic cytochrome c550 and 12 kDa protein with a highly purified oxygen-evolving photosystem II core complex from Synechococcus vulcanus. FEBS Lett. 1992 Apr 20;301(2):145-9. PMID:1314738
↑ Shen JR, Ikeuchi M, Inoue Y. Stoichiometric association of extrinsic cytochrome c550 and 12 kDa protein with a highly purified oxygen-evolving photosystem II core complex from Synechococcus vulcanus. FEBS Lett. 1992 Apr 20;301(2):145-9. PMID:1314738
↑ Shen JR, Inoue Y. Binding and functional properties of two new extrinsic components, cytochrome c-550 and a 12-kDa protein, in cyanobacterial photosystem II. Biochemistry. 1993 Feb 23;32(7):1825-32. PMID:8382523
↑ Umena Y, Kawakami K, Shen JR, Kamiya N. Crystal structure of oxygen-evolving photosystem II at a resolution of 1.9 A. Nature. 2011 May 5;473(7345):55-60. Epub 2011 Apr 17. PMID:21499260 doi:10.1038/nature09913

1 Structural highlights
2 Function
3 Publication Abstract from PubMed
4 References

Proteopedia Page Contributors and Editors (what is this?)

OCA

Retrieved from "http://52.214.119.220/wiki/index.php/5v2c"

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 </table>
 == Function ==
-[[http://www.uniprot.org/uniprot/PSBL_THEVL PSBL_THEVL]] This protein is a component of the reaction center of 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.[HAMAP-Rule:MF_01317] [[http://www.uniprot.org/uniprot/YCF12_THEVL YCF12_THEVL]] A core subunit of 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. [[http://www.uniprot.org/uniprot/PSBB_THEVL PSBB_THEVL]] This protein binds multiple antenna chlorophylls and is part of the core of 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. [[http://www.uniprot.org/uniprot/PSBA_THEVL PSBA_THEVL]] D1 (PsbA) and D2 (PsbD) bind P680, the primary electron donor of photosystem II (PSII) as well as electron acceptors. 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.[HAMAP-Rule:MF_01379] [[http://www.uniprot.org/uniprot/PSBX_THEVL PSBX_THEVL]] Involved in the binding and/or turnover of quinones at the Q(B) site of 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.[HAMAP-Rule:MF_01386] [[http://www.uniprot.org/uniprot/CY550_THEVL CY550_THEVL]] Low-potential cytochrome c that plays a role in the oxygen-evolving complex of photosystem II (PSII). Binds to PSII in the absence of other extrinsic proteins; required for binding of the PsbU protein to photosystem II. In PSII particles without oxygen-evolving activity, maximal activity is restored only by binding of cytochrome c550, PsbU and the 33 kDa PsbO protein. 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.<ref>PMID:1314738</ref> <ref>PMID:8382523</ref>  [[http://www.uniprot.org/uniprot/PSBO_THEVL PSBO_THEVL]] 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. [[http://www.uniprot.org/uniprot/PSBF_THEVL PSBF_THEVL]] This b-type cytochrome is tightly associated with the reaction center of 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.[HAMAP-Rule:MF_00643] [[http://www.uniprot.org/uniprot/PSBC_THEVL PSBC_THEVL]] This protein binds multiple antenna chlorophylls and is part of the core of 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. [[http://www.uniprot.org/uniprot/PSBJ_THEVL PSBJ_THEVL]] This protein is a component of the reaction center of 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.[HAMAP-Rule:MF_01305] [[http://www.uniprot.org/uniprot/PSBM_THEVL PSBM_THEVL]] This protein is a component of the reaction center of 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.[HAMAP-Rule:MF_00438] [[http://www.uniprot.org/uniprot/PSBT_THEVL PSBT_THEVL]] Seems to play a role in the dimerization of 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.[HAMAP-Rule:MF_00808] [[http://www.uniprot.org/uniprot/PSBU_THEVL PSBU_THEVL]] Stabilizes the structure of photosystem II (PSII) oxygen-evolving complex (OEC), the ion environment of oxygen evolution and protects the OEC against heat-induced inactivation. Requires cytochrome c-550 (PsbV) or OEC3 (PsbO) to bind to 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.<ref>PMID:1314738</ref>  [[http://www.uniprot.org/uniprot/PSBI_THEVL PSBI_THEVL]] A component of the reaction center of 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.[HAMAP-Rule:MF_01316] [[http://www.uniprot.org/uniprot/PSBD_THEVL PSBD_THEVL]] D1 (PsbA) and D2 (PsbD) bind P680, the primary electron donor of photosystem II (PSII) as well as electron acceptors. 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. D2 is needed for assembly of a stable PSII complex.[HAMAP-Rule:MF_01383] [[http://www.uniprot.org/uniprot/PSBZ_THEVL PSBZ_THEVL]] Controls the interaction of photosystem II (PSII) cores with the light-harvesting antenna. 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.[HAMAP-Rule:MF_00644] [[http://www.uniprot.org/uniprot/PSBK_THEVL PSBK_THEVL]] This protein is a component of the reaction center of 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. [[http://www.uniprot.org/uniprot/PSBE_THEVL PSBE_THEVL]] This b-type cytochrome is tightly associated with the reaction center of 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.[HAMAP-Rule:MF_00642]
+[[http://www.uniprot.org/uniprot/PSBF_THEVL PSBF_THEVL]] This b-type cytochrome is tightly associated with the reaction center of 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.[HAMAP-Rule:MF_00643] [[http://www.uniprot.org/uniprot/PSBL_THEVL PSBL_THEVL]] This protein is a component of the reaction center of 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.[HAMAP-Rule:MF_01317] [[http://www.uniprot.org/uniprot/PSBC_THEVL PSBC_THEVL]] This protein binds multiple antenna chlorophylls and is part of the core of 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. [[http://www.uniprot.org/uniprot/PSBJ_THEVL PSBJ_THEVL]] This protein is a component of the reaction center of 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.[HAMAP-Rule:MF_01305] [[http://www.uniprot.org/uniprot/PSBB_THEVL PSBB_THEVL]] This protein binds multiple antenna chlorophylls and is part of the core of 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. [[http://www.uniprot.org/uniprot/YCF12_THEVL YCF12_THEVL]] A core subunit of 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. [[http://www.uniprot.org/uniprot/PSBM_THEVL PSBM_THEVL]] This protein is a component of the reaction center of 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.[HAMAP-Rule:MF_00438] [[http://www.uniprot.org/uniprot/PSBU_THEVL PSBU_THEVL]] Stabilizes the structure of photosystem II (PSII) oxygen-evolving complex (OEC), the ion environment of oxygen evolution and protects the OEC against heat-induced inactivation. Requires cytochrome c-550 (PsbV) or OEC3 (PsbO) to bind to 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.<ref>PMID:1314738</ref>  [[http://www.uniprot.org/uniprot/PSBT_THEVL PSBT_THEVL]] Seems to play a role in the dimerization of 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.[HAMAP-Rule:MF_00808] [[http://www.uniprot.org/uniprot/PSBI_THEVL PSBI_THEVL]] A component of the reaction center of 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.[HAMAP-Rule:MF_01316] [[http://www.uniprot.org/uniprot/PSBD_THEVL PSBD_THEVL]] D1 (PsbA) and D2 (PsbD) bind P680, the primary electron donor of photosystem II (PSII) as well as electron acceptors. 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. D2 is needed for assembly of a stable PSII complex.[HAMAP-Rule:MF_01383] [[http://www.uniprot.org/uniprot/PSBA_THEVL PSBA_THEVL]] D1 (PsbA) and D2 (PsbD) bind P680, the primary electron donor of photosystem II (PSII) as well as electron acceptors. 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.[HAMAP-Rule:MF_01379] [[http://www.uniprot.org/uniprot/PSBX_THEVL PSBX_THEVL]] Involved in the binding and/or turnover of quinones at the Q(B) site of 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.[HAMAP-Rule:MF_01386] [[http://www.uniprot.org/uniprot/PSBZ_THEVL PSBZ_THEVL]] Controls the interaction of photosystem II (PSII) cores with the light-harvesting antenna. 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.[HAMAP-Rule:MF_00644] [[http://www.uniprot.org/uniprot/PSBK_THEVL PSBK_THEVL]] This protein is a component of the reaction center of 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. [[http://www.uniprot.org/uniprot/PSBO_THEVL PSBO_THEVL]] 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. [[http://www.uniprot.org/uniprot/CY550_THEVL CY550_THEVL]] Low-potential cytochrome c that plays a role in the oxygen-evolving complex of photosystem II (PSII). Binds to PSII in the absence of other extrinsic proteins; required for binding of the PsbU protein to photosystem II. In PSII particles without oxygen-evolving activity, maximal activity is restored only by binding of cytochrome c550, PsbU and the 33 kDa PsbO protein. 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.<ref>PMID:1314738</ref> <ref>PMID:8382523</ref>  [[http://www.uniprot.org/uniprot/PSBE_THEVL PSBE_THEVL]] This b-type cytochrome is tightly associated with the reaction center of 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.[HAMAP-Rule:MF_00642]
 <div style="background-color:#fffaf0;">
 == Publication Abstract from PubMed ==

5v2c

From Proteopedia

Revision as of 14:46, 5 September 2017

RE-REFINEMENT OF CRYSTAL STRUCTURE OF PHOTOSYSTEM II COMPLEX

Structural highlights

Function

Publication Abstract from PubMed

References

Contents

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