1f99
From Proteopedia
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|PDB= 1f99 |SIZE=350|CAPTION= <scene name='initialview01'>1f99</scene>, resolution 2.4Å | |PDB= 1f99 |SIZE=350|CAPTION= <scene name='initialview01'>1f99</scene>, resolution 2.4Å | ||
|SITE= | |SITE= | ||
| - | |LIGAND= <scene name='pdbligand=BLA:BILIVERDINE+IX+ALPHA'>BLA</scene>, <scene name='pdbligand=CYC:PHYCOCYANOBILIN'>CYC</scene> | + | |LIGAND= <scene name='pdbligand=BLA:BILIVERDINE+IX+ALPHA'>BLA</scene>, <scene name='pdbligand=CYC:PHYCOCYANOBILIN'>CYC</scene>, <scene name='pdbligand=PEB:PHYCOERYTHROBILIN'>PEB</scene> |
|ACTIVITY= | |ACTIVITY= | ||
|GENE= | |GENE= | ||
| + | |DOMAIN= | ||
| + | |RELATEDENTRY= | ||
| + | |RESOURCES=<span class='plainlinks'>[http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=1f99 FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1f99 OCA], [http://www.ebi.ac.uk/pdbsum/1f99 PDBsum], [http://www.rcsb.org/pdb/explore.do?structureId=1f99 RCSB]</span> | ||
}} | }} | ||
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[[Category: Jiang, T.]] | [[Category: Jiang, T.]] | ||
[[Category: Liang, D C.]] | [[Category: Liang, D C.]] | ||
| - | [[Category: BLA]] | ||
| - | [[Category: CYC]] | ||
| - | [[Category: PEB]] | ||
[[Category: electron trasnport]] | [[Category: electron trasnport]] | ||
[[Category: light harvesting protein]] | [[Category: light harvesting protein]] | ||
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[[Category: r-phycocyanin]] | [[Category: r-phycocyanin]] | ||
| - | ''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 20:18:23 2008'' |
Revision as of 17:18, 30 March 2008
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| , resolution 2.4Å | |||||||
|---|---|---|---|---|---|---|---|
| Ligands: | , , | ||||||
| Resources: | FirstGlance, OCA, PDBsum, RCSB | ||||||
| Coordinates: | save as pdb, mmCIF, xml | ||||||
CRYSTAL STRUCTURE OF R-PHYCOCYANIN FROM POLYSIPHONIA AT 2.4 A RESOLUTION
Overview
The crystal structure of R-phycocyanin from Polysiphonia urceolata (R-PC-PU) at 2.4 A is reported. The R-PC-PU crystal belongs to space group P4(3)2(1)2 with cell parameters a = 135.1 A, c = 210.0 A, and alpha = beta = gamma = 90 degrees. The structure was determined by molecular replacement. The crystallographic R-factor of the refined model is 0.189 (R(free) = 0.239). Comparison of the microenvironment of chromophore beta 155 in R-PC-PU and in C-PC from Fremyolla diphosiphon (C-PC-FD) reveals that their spectral differences may be caused by their different alpha 28 residues. In the R-PC-PU crystal structure, two (alpha beta)(3) trimers assemble face to face to form a hexamer, and two such hexamers assemble in two novel side-to-side arrangements. Possible models for the energy transfer from phycoerythrin to phycocyanin and from phycocyanin to allophycocyanin are proposed based on several phycobiliprotein crystal structures.
About this Structure
1F99 is a Protein complex structure of sequences from Polysiphonia urceolata. Full crystallographic information is available from OCA.
Reference
Crystal structure of R-phycocyanin and possible energy transfer pathways in the phycobilisome., Jiang T, Zhang JP, Chang WR, Liang DC, Biophys J. 2001 Aug;81(2):1171-9. PMID:11463658
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