1v2b: Difference between revisions
New page: left|200px<br /><applet load="1v2b" size="450" color="white" frame="true" align="right" spinBox="true" caption="1v2b, resolution 1.60Å" /> '''Crystal Structure of... |
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[[Image:1v2b.gif|left|200px]]<br /><applet load="1v2b" size=" | [[Image:1v2b.gif|left|200px]]<br /><applet load="1v2b" size="350" color="white" frame="true" align="right" spinBox="true" | ||
caption="1v2b, resolution 1.60Å" /> | caption="1v2b, resolution 1.60Å" /> | ||
'''Crystal Structure of PsbP Protein in the Oxygen-Evolving Complex of Photosystem II from Higher Plants'''<br /> | '''Crystal Structure of PsbP Protein in the Oxygen-Evolving Complex of Photosystem II from Higher Plants'''<br /> | ||
==Overview== | ==Overview== | ||
PsbP is a membrane-extrinsic subunit of the water-oxidizing complex | PsbP is a membrane-extrinsic subunit of the water-oxidizing complex photosystem II (PS II). The evolutionary origin of PsbP has long been a mystery because it specifically exists in higher plants and green algae but not in cyanobacteria. We report here the crystal structure of PsbP from Nicotiana tabacum at a resolution of 1.6 A. Its structure is mainly composed of beta-sheet, and is not similar to any structures in cyanobacterial PS II. However, the electrostatic surface potential of PsbP is similar to that of cyanobacterial PsbV (cyt c(550)), which has a function similar to PsbP. A structural homology search with the DALI algorithm indicated that the folding of PsbP is very similar to that of Mog1p, a regulatory protein for the nuclear transport of Ran GTPase. The structure of PsbP provides insight into its novel function in GTP-regulated metabolism in PS II. | ||
==About this Structure== | ==About this Structure== | ||
1V2B is a [http://en.wikipedia.org/wiki/Single_protein Single protein] structure of sequence from [http://en.wikipedia.org/wiki/Nicotiana_tabacum Nicotiana tabacum] with GLC and SO4 as [http://en.wikipedia.org/wiki/ligands ligands]. Full crystallographic information is available from [http:// | 1V2B is a [http://en.wikipedia.org/wiki/Single_protein Single protein] structure of sequence from [http://en.wikipedia.org/wiki/Nicotiana_tabacum Nicotiana tabacum] with <scene name='pdbligand=GLC:'>GLC</scene> and <scene name='pdbligand=SO4:'>SO4</scene> as [http://en.wikipedia.org/wiki/ligands ligands]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1V2B OCA]. | ||
==Reference== | ==Reference== | ||
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[[Category: Kato, H.]] | [[Category: Kato, H.]] | ||
[[Category: Nakatsu, T.]] | [[Category: Nakatsu, T.]] | ||
[[Category: RSGI, RIKEN | [[Category: RSGI, RIKEN Structural Genomics/Proteomics Initiative.]] | ||
[[Category: Sato, F.]] | [[Category: Sato, F.]] | ||
[[Category: GLC]] | [[Category: GLC]] | ||
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[[Category: structural genomics]] | [[Category: structural genomics]] | ||
''Page seeded by [http:// | ''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Thu Feb 21 15:30:43 2008'' | ||
Revision as of 16:30, 21 February 2008
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Crystal Structure of PsbP Protein in the Oxygen-Evolving Complex of Photosystem II from Higher Plants
OverviewOverview
PsbP is a membrane-extrinsic subunit of the water-oxidizing complex photosystem II (PS II). The evolutionary origin of PsbP has long been a mystery because it specifically exists in higher plants and green algae but not in cyanobacteria. We report here the crystal structure of PsbP from Nicotiana tabacum at a resolution of 1.6 A. Its structure is mainly composed of beta-sheet, and is not similar to any structures in cyanobacterial PS II. However, the electrostatic surface potential of PsbP is similar to that of cyanobacterial PsbV (cyt c(550)), which has a function similar to PsbP. A structural homology search with the DALI algorithm indicated that the folding of PsbP is very similar to that of Mog1p, a regulatory protein for the nuclear transport of Ran GTPase. The structure of PsbP provides insight into its novel function in GTP-regulated metabolism in PS II.
About this StructureAbout this Structure
1V2B is a Single protein structure of sequence from Nicotiana tabacum with and as ligands. Full crystallographic information is available from OCA.
ReferenceReference
Crystal structure of the PsbP protein of photosystem II from Nicotiana tabacum., Ifuku K, Nakatsu T, Kato H, Sato F, EMBO Rep. 2004 Apr;5(4):362-7. Epub 2004 Mar 12. PMID:15031714
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