2bv8
From Proteopedia
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| - | [[Image:2bv8.gif|left|200px]] | + | [[Image:2bv8.gif|left|200px]] |
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| - | '''THE CRYSTAL STRUCTURE OF PHYCOCYANIN FROM GRACILARIA CHILENSIS.''' | + | {{Structure |
| + | |PDB= 2bv8 |SIZE=350|CAPTION= <scene name='initialview01'>2bv8</scene>, resolution 2.01Å | ||
| + | |SITE= | ||
| + | |LIGAND= <scene name='pdbligand=CYC:PHYCOCYANOBILIN'>CYC</scene> and <scene name='pdbligand=PEB:PHYCOERYTHROBILIN'>PEB</scene> | ||
| + | |ACTIVITY= | ||
| + | |GENE= | ||
| + | }} | ||
| + | |||
| + | '''THE CRYSTAL STRUCTURE OF PHYCOCYANIN FROM GRACILARIA CHILENSIS.''' | ||
| + | |||
==Overview== | ==Overview== | ||
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==About this Structure== | ==About this Structure== | ||
| - | 2BV8 is a [ | + | 2BV8 is a [[Protein complex]] structure of sequences from [http://en.wikipedia.org/wiki/Gracilaria_chilensis Gracilaria chilensis]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=2BV8 OCA]. |
==Reference== | ==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:[http:// | + | 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:[http://www.ncbi.nlm.nih.gov/pubmed/17118524 17118524] |
[[Category: Gracilaria chilensis]] | [[Category: Gracilaria chilensis]] | ||
[[Category: Protein complex]] | [[Category: Protein complex]] | ||
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[[Category: phycocyanobilin]] | [[Category: phycocyanobilin]] | ||
| - | ''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Thu | + | ''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Thu Mar 20 16:07:08 2008'' |
Revision as of 14:07, 20 March 2008
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| , resolution 2.01Å | |||||||
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| Ligands: | and | ||||||
| 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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