1ef4: Difference between revisions

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[[Image:1ef4.gif|left|200px]]
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[[Image:1ef4.png|left|200px]]


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{{STRUCTURE_1ef4|  PDB=1ef4  |  SCENE=  }}  
{{STRUCTURE_1ef4|  PDB=1ef4  |  SCENE=  }}  


'''SOLUTION STRUCTURE OF THE ESSENTIAL RNA POLYMERASE SUBUNIT RPB10 FROM METHANOBACTERIUM THERMOAUTOTROPHICUM'''
===SOLUTION STRUCTURE OF THE ESSENTIAL RNA POLYMERASE SUBUNIT RPB10 FROM METHANOBACTERIUM THERMOAUTOTROPHICUM===




==Overview==
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The RNA polymerase subunit RPB10 displays a high level of conservation across archaea and eukarya and is required for cell viability in yeast. Structure determination of this RNA polymerase subunit from Methanobacterium thermoautotrophicum reveals a topology, which we term a zinc-bundle, consisting of three alpha-helices stabilized by a zinc ion. The metal ion is bound within an atypical CX(2)CX(n)CC sequence motif and serves to bridge an N-terminal loop with helix 3. This represents an example of two adjacent zinc-binding Cys residues within an alpha-helix conformation. Conserved surface features of RPB10 include discrete regions of neutral, acidic, and basic residues, the latter being located around the zinc-binding site. One or more of these regions may contribute to the role of this subunit as a scaffold protein within the polymerase holoenzyme.
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{{ABSTRACT_PUBMED_10841539}}


==About this Structure==
==About this Structure==
1EF4 is a [[Single protein]] structure of sequence from [http://en.wikipedia.org/wiki/Methanothermobacter_thermautotrophicus Methanothermobacter thermautotrophicus]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1EF4 OCA].  
1EF4 is a [[Single protein]] structure of sequence from [http://en.wikipedia.org/wiki/Methanothermobacter_thermautotrophicus Methanothermobacter thermautotrophicus]. Full experimental information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1EF4 OCA].  


==Reference==
==Reference==
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[[Category: Three helix bundle]]
[[Category: Three helix bundle]]
[[Category: Zinc binding]]
[[Category: Zinc binding]]
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Revision as of 21:35, 30 June 2008

File:1ef4.png

Template:STRUCTURE 1ef4

SOLUTION STRUCTURE OF THE ESSENTIAL RNA POLYMERASE SUBUNIT RPB10 FROM METHANOBACTERIUM THERMOAUTOTROPHICUM

Template:ABSTRACT PUBMED 10841539

About this Structure

1EF4 is a Single protein structure of sequence from Methanothermobacter thermautotrophicus. Full experimental information is available from OCA.

Reference

Zinc-bundle structure of the essential RNA polymerase subunit RPB10 from Methanobacterium thermoautotrophicum., Mackereth CD, Arrowsmith CH, Edwards AM, McIntosh LP, Proc Natl Acad Sci U S A. 2000 Jun 6;97(12):6316-21. PMID:10841539

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