2bv8

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[[Image:2bv8.gif|left|200px]]
[[Image:2bv8.gif|left|200px]]
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{{Structure
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|PDB= 2bv8 |SIZE=350|CAPTION= <scene name='initialview01'>2bv8</scene>, resolution 2.01&Aring;
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The line below this paragraph, containing "STRUCTURE_2bv8", creates the "Structure Box" on the page.
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|LIGAND= <scene name='pdbligand=CYC:PHYCOCYANOBILIN'>CYC</scene>, <scene name='pdbligand=MEN:N-METHYL+ASPARAGINE'>MEN</scene>, <scene name='pdbligand=PEB:PHYCOERYTHROBILIN'>PEB</scene>
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{{STRUCTURE_2bv8| PDB=2bv8 | SCENE= }}
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|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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'''THE CRYSTAL STRUCTURE OF PHYCOCYANIN FROM GRACILARIA CHILENSIS.'''
'''THE CRYSTAL STRUCTURE OF PHYCOCYANIN FROM GRACILARIA CHILENSIS.'''
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[[Category: Martinez-Oyanedel, J.]]
[[Category: Martinez-Oyanedel, J.]]
[[Category: Poo-Caama, G.]]
[[Category: Poo-Caama, G.]]
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[[Category: chloroplast]]
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[[Category: Chloroplast]]
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[[Category: light harvesting]]
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[[Category: Light harvesting]]
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[[Category: photosynthesis]]
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[[Category: Photosynthesis]]
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[[Category: phycobiliprotein]]
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[[Category: Phycobiliprotein]]
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[[Category: phycobilisome]]
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[[Category: Phycobilisome]]
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[[Category: phycocyanin]]
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[[Category: Phycocyanin]]
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[[Category: phycocyanobilin]]
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[[Category: Phycocyanobilin]]
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''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Sat May 3 20:50:44 2008''
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''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Mon Mar 31 02:12:19 2008''
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Revision as of 17:50, 3 May 2008

Image:2bv8.gif

Template:STRUCTURE 2bv8

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 Page seeded by OCA on Sat May 3 20:50:44 2008

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