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| | <StructureSection load='1ha7' size='340' side='right'caption='[[1ha7]], [[Resolution|resolution]] 2.20Å' scene=''> | | <StructureSection load='1ha7' size='340' side='right'caption='[[1ha7]], [[Resolution|resolution]] 2.20Å' scene=''> |
| | == Structural highlights == | | == Structural highlights == |
| - | <table><tr><td colspan='2'>[[1ha7]] is a 24 chain structure with sequence from [http://en.wikipedia.org/wiki/Spirulina_platensis Spirulina platensis]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1HA7 OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=1HA7 FirstGlance]. <br> | + | <table><tr><td colspan='2'>[[1ha7]] is a 24 chain structure with sequence from [https://en.wikipedia.org/wiki/Arthrospira_platensis Arthrospira platensis]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1HA7 OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=1HA7 FirstGlance]. <br> |
| - | </td></tr><tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat"><scene name='pdbligand=CYC:PHYCOCYANOBILIN'>CYC</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]] 2.2Å</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></td></tr> |
| - | <tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=1ha7 FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1ha7 OCA], [http://pdbe.org/1ha7 PDBe], [http://www.rcsb.org/pdb/explore.do?structureId=1ha7 RCSB], [http://www.ebi.ac.uk/pdbsum/1ha7 PDBsum], [http://prosat.h-its.org/prosat/prosatexe?pdbcode=1ha7 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=1ha7 FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1ha7 OCA], [https://pdbe.org/1ha7 PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=1ha7 RCSB], [https://www.ebi.ac.uk/pdbsum/1ha7 PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=1ha7 ProSAT]</span></td></tr> |
| | </table> | | </table> |
| | == Function == | | == Function == |
| - | [[http://www.uniprot.org/uniprot/PHCA_ARTPT PHCA_ARTPT]] Light-harvesting photosynthetic bile pigment-protein from the phycobiliprotein complex. [[http://www.uniprot.org/uniprot/PHCB_ARTPT PHCB_ARTPT]] Light-harvesting photosynthetic bile pigment-protein from the phycobiliprotein complex. | + | [https://www.uniprot.org/uniprot/PHCB_ARTPT PHCB_ARTPT] Light-harvesting photosynthetic bile pigment-protein from the phycobiliprotein complex. |
| | == 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: Arthrospira platensis]] |
| | [[Category: Large Structures]] | | [[Category: Large Structures]] |
| - | [[Category: Spirulina platensis]]
| + | [[Category: Padyana AK]] |
| - | [[Category: Padyana, A K]] | + | [[Category: Rajashankar KR]] |
| - | [[Category: Rajashankar, K R]] | + | [[Category: Ramakumar S]] |
| - | [[Category: Ramakumar, S]] | + | |
| - | [[Category: Chromophore]]
| + | |
| - | [[Category: Cyanobacteria]]
| + | |
| - | [[Category: Light-harvesting protein]]
| + | |
| - | [[Category: Photosynthesis]]
| + | |
| - | [[Category: Phycocyanobilin]]
| + | |
| - | [[Category: Pigment protein]]
| + | |
| Structural highlights
Function
PHCB_ARTPT Light-harvesting photosynthetic bile pigment-protein from the phycobiliprotein complex.
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
The crystal structure of C-phycocyanin, a light-harvesting phycobiliprotein from cyanobacteria (blue-green algae) Spirulina platensis has been solved by molecular replacement technique. The crystals belong to space group P2(1) with cell parameters a = 107.20, b = 115.40, c = 183.04 A; beta = 90.2 degrees. The structure has been refined to a crystallographic R factor of 19.2% (R(free) = 23.9%) using the X-ray diffraction data extending up to 2.2 A resolution. The asymmetric unit of the crystal cell consists of two (alphabeta)6-hexamers, each hexamer being the functional unit in the native antenna rod of cyanobacteria. The molecular structure resembles that of other reported C-phycocyanins. However, the unique form of aggregation of two (alphabeta)6-hexamers in the crystal asymmetric unit, suggests additional pathways of energy transfer in lateral direction between the adjacent hexamers involving beta155 phycocyanobilin chromophores.
Crystal structure of a light-harvesting protein C-phycocyanin from Spirulina platensis.,Padyana AK, Bhat VB, Madyastha KM, Rajashankar KR, Ramakumar S Biochem Biophys Res Commun. 2001 Apr 13;282(4):893-8. PMID:11352634[1]
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.
See Also
References
- ↑ Padyana AK, Bhat VB, Madyastha KM, Rajashankar KR, Ramakumar S. Crystal structure of a light-harvesting protein C-phycocyanin from Spirulina platensis. Biochem Biophys Res Commun. 2001 Apr 13;282(4):893-8. PMID:11352634 doi:10.1006/bbrc.2001.4663
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