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1ha7

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[[Image:1ha7.gif|left|200px]]
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{{STRUCTURE_1ha7| PDB=1ha7 | SCENE= }}
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'''STRUCTURE OF A LIGHT-HARVESTING PHYCOBILIPROTEIN, C-PHYCOCYANIN FROM SPIRULINA PLATENSIS AT 2.2A RESOLUTION'''
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===STRUCTURE OF A LIGHT-HARVESTING PHYCOBILIPROTEIN, C-PHYCOCYANIN FROM SPIRULINA PLATENSIS AT 2.2A RESOLUTION===
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==Overview==
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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.
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(as it appears on PubMed at http://www.pubmed.gov), where 11352634 is the PubMed ID number.
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{{ABSTRACT_PUBMED_11352634}}
==About this Structure==
==About this Structure==
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[[Category: Phycocyanobilin]]
[[Category: Phycocyanobilin]]
[[Category: Pigment protein]]
[[Category: Pigment protein]]
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''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Fri May 2 18:37:42 2008''
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''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Tue Jul 1 07:53:23 2008''

Revision as of 04:53, 1 July 2008

Image:1ha7.png

Template:STRUCTURE 1ha7

STRUCTURE OF A LIGHT-HARVESTING PHYCOBILIPROTEIN, C-PHYCOCYANIN FROM SPIRULINA PLATENSIS AT 2.2A RESOLUTION

Template:ABSTRACT PUBMED 11352634

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

Page seeded by OCA on Tue Jul 1 07:53:23 2008

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