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| {{STRUCTURE_1all| PDB=1all | SCENE= }} | | {{STRUCTURE_1all| PDB=1all | SCENE= }} |
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| '''ALLOPHYCOCYANIN'''
| | ===ALLOPHYCOCYANIN=== |
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| ==Overview==
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| The phycobiliprotein allophycocyanin from the cyanobacterium Spirulina platensis has been isolated and crystallized. The crystals belong to space group P6(3)22 with cell constants a = b = 101.9 A, c = 130.6 A, alpha = beta = 90 degrees, gamma = 120 degrees, with one (alpha beta) monomer in the asymmetric unit. The three-dimensional structure of the (alpha beta) monomer was solved by multiple isomorphous replacement. The crystal structure has been refined in a cyclic manner by energy-restrained crystallographic refinement and model building. The conventional crystallographic R-factor of the final model is 19.6% with data from 8.0 to 2.3 A. The molecular structure of the subunits resembles other solved phycobiliprotein structures. In comparison to C-phycocyanin and b-phycoerythrin the major differences arise from deletions and insertions of segments involved in the protein-chromophore interactions. The stereochemistry of the alpha 84 and beta 84 chiral atoms are C(2)-R, C(3)-R and C(31)-R. The configuration (C(4)-Z, C(10)-Z and C(15)-Z) and the conformation (C(5)-anti, C(9)-syn and C(14)-anti) are equal for both chromophores. | | The line below this paragraph, {{ABSTRACT_PUBMED_7783202}}, adds the Publication Abstract to the page |
| | (as it appears on PubMed at http://www.pubmed.gov), where 7783202 is the PubMed ID number. |
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| | {{ABSTRACT_PUBMED_7783202}} |
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| ==About this Structure== | | ==About this Structure== |
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| [[Category: Light-harvesting protein]] | | [[Category: Light-harvesting protein]] |
| [[Category: Phycobiliprotein]] | | [[Category: Phycobiliprotein]] |
| ''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Fri May 2 10:25:36 2008'' | | |
| | ''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Mon Jun 30 17:07:04 2008'' |
