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| | <StructureSection load='2bv8' size='340' side='right'caption='[[2bv8]], [[Resolution|resolution]] 2.01Å' scene=''> | | <StructureSection load='2bv8' size='340' side='right'caption='[[2bv8]], [[Resolution|resolution]] 2.01Å' scene=''> |
| | == Structural highlights == | | == Structural highlights == |
| - | <table><tr><td colspan='2'>[[2bv8]] is a 12 chain structure with sequence 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]. For a <b>guided tour on the structure components</b> use [http://proteopedia.org/fgij/fg.htm?mol=2BV8 FirstGlance]. <br> | + | <table><tr><td colspan='2'>[[2bv8]] is a 12 chain structure with sequence from [https://en.wikipedia.org/wiki/Agarophyton_chilense Agarophyton chilense]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=2BV8 OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=2BV8 FirstGlance]. <br> |
| - | </td></tr><tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=CYC:PHYCOCYANOBILIN'>CYC</scene>, <scene name='pdbligand=PEB:PHYCOERYTHROBILIN'>PEB</scene></td></tr> | + | </td></tr><tr id='method'><td class="sblockLbl"><b>[[Empirical_models|Method:]]</b></td><td class="sblockDat" id="methodDat">X-ray diffraction, [[Resolution|Resolution]] 2.01Å</td></tr> |
| - | <tr id='NonStdRes'><td class="sblockLbl"><b>[[Non-Standard_Residue|NonStd Res:]]</b></td><td class="sblockDat"><scene name='pdbligand=MEN:N-METHYL+ASPARAGINE'>MEN</scene></td></tr> | + | <tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=CYC:PHYCOCYANOBILIN'>CYC</scene>, <scene name='pdbligand=MEN:N-METHYL+ASPARAGINE'>MEN</scene>, <scene name='pdbligand=PEB:PHYCOERYTHROBILIN'>PEB</scene></td></tr> |
| - | <tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[http://proteopedia.org/fgij/fg.htm?mol=2bv8 FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=2bv8 OCA], [http://pdbe.org/2bv8 PDBe], [http://www.rcsb.org/pdb/explore.do?structureId=2bv8 RCSB], [http://www.ebi.ac.uk/pdbsum/2bv8 PDBsum], [http://prosat.h-its.org/prosat/prosatexe?pdbcode=2bv8 ProSAT]</span></td></tr> | + | <tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[https://proteopedia.org/fgij/fg.htm?mol=2bv8 FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=2bv8 OCA], [https://pdbe.org/2bv8 PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=2bv8 RCSB], [https://www.ebi.ac.uk/pdbsum/2bv8 PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=2bv8 ProSAT]</span></td></tr> |
| | </table> | | </table> |
| | + | == Function == |
| | + | [https://www.uniprot.org/uniprot/Q6B8L6_GRATL Q6B8L6_GRATL] |
| | == Evolutionary Conservation == | | == Evolutionary Conservation == |
| | [[Image:Consurf_key_small.gif|200px|right]] | | [[Image:Consurf_key_small.gif|200px|right]] |
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| | __TOC__ | | __TOC__ |
| | </StructureSection> | | </StructureSection> |
| - | [[Category: Gracilaria chilensis]] | + | [[Category: Agarophyton chilense]] |
| | [[Category: Large Structures]] | | [[Category: Large Structures]] |
| - | [[Category: Bruna, C]] | + | [[Category: Bruna C]] |
| - | [[Category: Bunster, M]] | + | [[Category: Bunster M]] |
| - | [[Category: Contreras-Martel, C]] | + | [[Category: Contreras-Martel C]] |
| - | [[Category: Martinez-Oyanedel, J]] | + | [[Category: Martinez-Oyanedel J]] |
| - | [[Category: Poo-Caama, G]] | + | [[Category: Poo-Caama G]] |
| - | [[Category: Chloroplast]]
| + | |
| - | [[Category: Light harvesting]]
| + | |
| - | [[Category: Photosynthesis]]
| + | |
| - | [[Category: Phycobiliprotein]]
| + | |
| - | [[Category: Phycobilisome]]
| + | |
| - | [[Category: Phycocyanin]]
| + | |
| - | [[Category: Phycocyanobilin]]
| + | |
| Structural highlights
Function
Q6B8L6_GRATL
Evolutionary Conservation
Check, as determined by ConSurfDB. You may read the explanation of the method and the full data available from ConSurf.
Publication Abstract from PubMed
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.
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[1]
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.
See Also
References
- ↑ Contreras-Martel C, Matamala A, Bruna C, Poo-Caamano G, Almonacid D, Figueroa M, Martinez-Oyanedel J, Bunster M. The structure at 2 A resolution of Phycocyanin from Gracilaria chilensis and the energy transfer network in a PC-PC complex. Biophys Chem. 2007 Feb;125(2-3):388-96. Epub 2006 Nov 10. PMID:17118524 doi:10.1016/j.bpc.2006.09.014
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