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| {{STRUCTURE_1baw| PDB=1baw | SCENE= }} | | {{STRUCTURE_1baw| PDB=1baw | SCENE= }} |
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| '''PLASTOCYANIN FROM PHORMIDIUM LAMINOSUM'''
| | ===PLASTOCYANIN FROM PHORMIDIUM LAMINOSUM=== |
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| ==Overview==
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| The crystal structure of the 'blue' copper protein plastocyanin from the cyanobacterium Phormidium laminosum has been solved and refined using 2.8 A X--ray data. P. laminosum plastocyanin crystallizes in space group P43212 with unit-cell dimensions a = 86.57, c = 91.47 A and with three protein molecules per asymmetric unit. The final residual R is 19.9%. The structure was solved using molecular replacement with a search model based on the crystal structure of a close homologue, Anabaena variabilis plastocyanin (66% sequence identity). The molecule of P. laminosum plastocyanin has 105 amino-acid residues. The single Cu atom is coordinated by the same residues - two histidines, a cysteine and a methionine - as in other plastocyanins. In the crystal structure, the three molecules of the asymmetric unit are related by a non-crystallographic threefold axis. A Zn atom lies between each pair of neighbouring molecules in this ensemble, being coordinated by a surface histidine residue of one molecule and by two aspartates of the other. | | The line below this paragraph, {{ABSTRACT_PUBMED_10089349}}, adds the Publication Abstract to the page |
| | (as it appears on PubMed at http://www.pubmed.gov), where 10089349 is the PubMed ID number. |
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| | {{ABSTRACT_PUBMED_10089349}} |
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| ==About this Structure== | | ==About this Structure== |
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| [[Category: Cyanobacteria]] | | [[Category: Cyanobacteria]] |
| [[Category: Electron transfer]] | | [[Category: Electron transfer]] |
| ''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Fri May 2 11:17:19 2008'' | | |
| | ''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Mon Jun 30 18:43:53 2008'' |
