1ha7
From Proteopedia
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|PDB= 1ha7 |SIZE=350|CAPTION= <scene name='initialview01'>1ha7</scene>, resolution 2.20Å | |PDB= 1ha7 |SIZE=350|CAPTION= <scene name='initialview01'>1ha7</scene>, resolution 2.20Å | ||
|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> |
|ACTIVITY= | |ACTIVITY= | ||
|GENE= | |GENE= | ||
| + | |DOMAIN= | ||
| + | |RELATEDENTRY= | ||
| + | |RESOURCES=<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://www.ebi.ac.uk/pdbsum/1ha7 PDBsum], [http://www.rcsb.org/pdb/explore.do?structureId=1ha7 RCSB]</span> | ||
}} | }} | ||
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[[Category: Rajashankar, K R.]] | [[Category: Rajashankar, K R.]] | ||
[[Category: Ramakumar, S.]] | [[Category: Ramakumar, S.]] | ||
| - | [[Category: CYC]] | ||
[[Category: chromophore]] | [[Category: chromophore]] | ||
[[Category: cyanobacteria]] | [[Category: cyanobacteria]] | ||
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[[Category: pigment protein]] | [[Category: pigment protein]] | ||
| - | ''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on | + | ''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Sun Mar 30 21:00:59 2008'' |
Revision as of 18:01, 30 March 2008
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| , resolution 2.20Å | |||||||
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| Ligands: | , | ||||||
| Resources: | FirstGlance, OCA, PDBsum, RCSB | ||||||
| Coordinates: | save as pdb, mmCIF, xml | ||||||
STRUCTURE OF A LIGHT-HARVESTING PHYCOBILIPROTEIN, C-PHYCOCYANIN FROM SPIRULINA PLATENSIS AT 2.2A RESOLUTION
Overview
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.
About this Structure
1HA7 is a Protein complex structure of sequences from Arthrospira platensis. Full crystallographic information is available from OCA.
Reference
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
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