2jnv

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{{STRUCTURE_2jnv| PDB=2jnv | SCENE= }}
{{STRUCTURE_2jnv| PDB=2jnv | SCENE= }}
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'''Solution structure of C-terminal domain of NifU-like protein from Oryza sativa'''
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===Solution structure of C-terminal domain of NifU-like protein from Oryza sativa===
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==Overview==
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OsCnfU-1A is a chloroplast-type Nfu-like protein that consists of tandem repeats sharing high sequence homology. Domain I of this protein, but not domain II, has a C-X-X-C motif that is thought to assemble an iron-sulphur cluster. Herein we report the solution structure of OsCnfU-1A domain I (73-153). Although OsCnfU-1A domain I is structurally similar to OsCnfU-1A domain II (154-226), the electrostatic surface potential of the 2 domains differs. Domain I has an acidic surface, whereas that of domain II is predominantly basic. Chemical shift perturbation studies on OsCnfU-1A domain I and domain II with ferredoxin revealed negligible chemical shift changes in domain I, whereas much larger chemical shift changes were observed in domain II. The residues with larger chemical shift changes were located on the basic surface of domain II. Considering that ferredoxin is predominantly negatively charged, we propose the following hypothesis: First, an iron-sulphur cluster is assembled on domain I. Next, domain II interacts with the ferredoxin, thus tethering domain I close to the ferredoxin. Finally, domain I transfers the iron-sulphur cluster to the ferredoxin. Thus, domain II facilitates the efficient transfer of the iron-sulphur cluster from domain I to the ferredoxin.
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(as it appears on PubMed at http://www.pubmed.gov), where 17545250 is the PubMed ID number.
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{{ABSTRACT_PUBMED_17545250}}
==About this Structure==
==About this Structure==
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2JNV is a [[Single protein]] structure of sequence from [http://en.wikipedia.org/wiki/Oryza_sativa Oryza sativa]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=2JNV OCA].
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2JNV is a [[Single protein]] structure of sequence from [http://en.wikipedia.org/wiki/Oryza_sativa Oryza sativa]. Full experimental information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=2JNV OCA].
==Reference==
==Reference==
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[[Category: Rsgi]]
[[Category: Rsgi]]
[[Category: Structural genomic]]
[[Category: Structural genomic]]
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''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Sun May 4 09:05:13 2008''
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''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Tue Jul 29 13:52:08 2008''

Revision as of 10:52, 29 July 2008

Image:2jnv.png

Template:STRUCTURE 2jnv

Solution structure of C-terminal domain of NifU-like protein from Oryza sativa

Template:ABSTRACT PUBMED 17545250

About this Structure

2JNV is a Single protein structure of sequence from Oryza sativa. Full experimental information is available from OCA.

Reference

The cooperative role of OsCnfU-1A domain I and domain II in the iron sulphur cluster transfer process as revealed by NMR., Saio T, Kumeta H, Ogura K, Yokochi M, Asayama M, Katoh S, Katoh E, Teshima K, Inagaki F, J Biochem. 2007 Jul;142(1):113-21. Epub 2007 Jun 1. PMID:17545250

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