2bv8
From Proteopedia
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|PDB= 2bv8 |SIZE=350|CAPTION= <scene name='initialview01'>2bv8</scene>, resolution 2.01Å | |PDB= 2bv8 |SIZE=350|CAPTION= <scene name='initialview01'>2bv8</scene>, resolution 2.01Å | ||
|SITE= | |SITE= | ||
| - | |LIGAND= <scene name='pdbligand=CYC:PHYCOCYANOBILIN'>CYC</scene> | + | |LIGAND= <scene name='pdbligand=CYC:PHYCOCYANOBILIN'>CYC</scene>, <scene name='pdbligand=MEN:N-METHYL+ASPARAGINE'>MEN</scene>, <scene name='pdbligand=PEB:PHYCOERYTHROBILIN'>PEB</scene> |
|ACTIVITY= | |ACTIVITY= | ||
|GENE= | |GENE= | ||
| + | |DOMAIN= | ||
| + | |RELATEDENTRY= | ||
| + | |RESOURCES=<span class='plainlinks'>[http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=2bv8 FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=2bv8 OCA], [http://www.ebi.ac.uk/pdbsum/2bv8 PDBsum], [http://www.rcsb.org/pdb/explore.do?structureId=2bv8 RCSB]</span> | ||
}} | }} | ||
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[[Category: Martinez-Oyanedel, J.]] | [[Category: Martinez-Oyanedel, J.]] | ||
[[Category: Poo-Caama, G.]] | [[Category: Poo-Caama, G.]] | ||
| - | [[Category: CYC]] | ||
| - | [[Category: PEB]] | ||
[[Category: chloroplast]] | [[Category: chloroplast]] | ||
[[Category: light harvesting]] | [[Category: light harvesting]] | ||
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[[Category: phycocyanobilin]] | [[Category: phycocyanobilin]] | ||
| - | ''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on | + | ''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Mon Mar 31 02:12:19 2008'' |
Revision as of 23:12, 30 March 2008
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| , resolution 2.01Å | |||||||
|---|---|---|---|---|---|---|---|
| Ligands: | , , | ||||||
| Resources: | FirstGlance, OCA, PDBsum, RCSB | ||||||
| Coordinates: | save as pdb, mmCIF, xml | ||||||
THE CRYSTAL STRUCTURE OF PHYCOCYANIN FROM GRACILARIA CHILENSIS.
Overview
Phycocyanin is a phycobiliprotein involved in light harvesting and conduction of light to the reaction centers in cyanobacteria and red algae. The structure of C-phycocyanin from Gracilaria chilensis was solved by X-ray crystallography at 2.0 A resolution in space group P2(1). An interaction model between two PC heterohexamers was built, followed by molecular dynamic refinement. The best model showed an inter-hexamer rotation of 23 degrees . The coordinates of a PC heterohexamer (alphabeta)(6) and of the PC-PC complex were used to perform energy transfer calculations between chromophores pairs using the fluorescence resonance energy transfer approach (FRET). Two main intra PC ((I)beta(3)(82)-->(I)alpha(1)(84)-->(I)alpha(5)(84)-->(I)beta(6)(82) and (I)beta(3)(153)-->(I)beta(5)(153)) and two main inter PC ((I)beta(6)(82)-->(II)beta(3)(82) and (I)beta(5)(153)-->(II)beta(3)(153)) pathways were proposed based on the values of the energy transfer constants calculated for all the chromophore pairs in the hexamer and in the complex.
About this Structure
2BV8 is a Protein complex structure of sequences from Gracilaria chilensis. Full crystallographic information is available from OCA.
Reference
The structure at 2 A resolution of Phycocyanin from Gracilaria chilensis and the energy transfer network in a PC-PC complex., Contreras-Martel C, Matamala A, Bruna C, Poo-Caamano G, Almonacid D, Figueroa M, Martinez-Oyanedel J, Bunster M, Biophys Chem. 2007 Feb;125(2-3):388-96. Epub 2006 Nov 10. PMID:17118524
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