1iwa

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[[Image:1iwa.gif|left|200px]]
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{{Seed}}
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[[Image:1iwa.png|left|200px]]
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{{STRUCTURE_1iwa| PDB=1iwa | SCENE= }}
{{STRUCTURE_1iwa| PDB=1iwa | SCENE= }}
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'''RUBISCO FROM GALDIERIA PARTITA'''
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===RUBISCO FROM GALDIERIA PARTITA===
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==Overview==
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Ribulose-1,5-bisphosphate carboxylase/oxygenase (Rubisco) catalyzes the reactions of carboxylation and oxygenation of ribulose-1,5-bisphosphate. These reactions require that the active site should be closed by a flexible loop (loop 6) of the large subunit. Rubisco from a red alga, Galdieria partita, has the highest specificity for carboxylation reaction among the Rubiscos hitherto reported. The crystal structure of unactivated Galdieria Rubisco has been determined at 2.6 A resolution. The electron density map reveals that a sulfate binds only to the P1 anion-binding site of the active site and the loop 6 is closed. Galdieria Rubisco has a unique hydrogen bond between the main chain oxygen of Val332 on the loop 6 and the epsilon-amino group of Gln386 of the same large subunit. This interaction is likely to be crucial to understanding for stabilizing the loop 6 in the closed state and to making a higher affinity for anionic ligands.
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(as it appears on PubMed at http://www.pubmed.gov), where 12220629 is the PubMed ID number.
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{{ABSTRACT_PUBMED_12220629}}
==About this Structure==
==About this Structure==
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[[Category: Photosynthesis]]
[[Category: Photosynthesis]]
[[Category: Rubisco]]
[[Category: Rubisco]]
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''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Tue Jul 1 14:06:59 2008''

Revision as of 11:07, 1 July 2008

Image:1iwa.png

Template:STRUCTURE 1iwa

RUBISCO FROM GALDIERIA PARTITA

Template:ABSTRACT PUBMED 12220629

About this Structure

1IWA is a Protein complex structure of sequences from Galdieria partita. Full crystallographic information is available from OCA.

Reference

X-ray structure of Galdieria Rubisco complexed with one sulfate ion per active site., Okano Y, Mizohata E, Xie Y, Matsumura H, Sugawara H, Inoue T, Yokota A, Kai Y, FEBS Lett. 2002 Sep 11;527(1-3):33-6. PMID:12220629

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