1ef4: Difference between revisions

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[[Image:1ef4.gif|left|200px]]<br /><applet load="1ef4" size="350" color="white" frame="true" align="right" spinBox="true"
[[Image:1ef4.gif|left|200px]]
caption="1ef4" />
 
'''SOLUTION STRUCTURE OF THE ESSENTIAL RNA POLYMERASE SUBUNIT RPB10 FROM METHANOBACTERIUM THERMOAUTOTROPHICUM'''<br />
{{Structure
|PDB= 1ef4 |SIZE=350|CAPTION= <scene name='initialview01'>1ef4</scene>
|SITE=  
|LIGAND= <scene name='pdbligand=ZN:ZINC ION'>ZN</scene>
|ACTIVITY= [http://en.wikipedia.org/wiki/DNA-directed_RNA_polymerase DNA-directed RNA polymerase], with EC number [http://www.brenda-enzymes.info/php/result_flat.php4?ecno=2.7.7.6 2.7.7.6]
|GENE=  
}}
 
'''SOLUTION STRUCTURE OF THE ESSENTIAL RNA POLYMERASE SUBUNIT RPB10 FROM METHANOBACTERIUM THERMOAUTOTROPHICUM'''
 


==Overview==
==Overview==
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==About this Structure==
==About this Structure==
1EF4 is a [http://en.wikipedia.org/wiki/Single_protein Single protein] structure of sequence from [http://en.wikipedia.org/wiki/Methanothermobacter_thermautotrophicus Methanothermobacter thermautotrophicus] with <scene name='pdbligand=ZN:'>ZN</scene> as [http://en.wikipedia.org/wiki/ligand ligand]. Active as [http://en.wikipedia.org/wiki/DNA-directed_RNA_polymerase DNA-directed RNA polymerase], with EC number [http://www.brenda-enzymes.info/php/result_flat.php4?ecno=2.7.7.6 2.7.7.6] 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 crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1EF4 OCA].  


==Reference==
==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:[http://ispc.weizmann.ac.il//pmbin/getpm?pmid=10841539 10841539]
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:[http://www.ncbi.nlm.nih.gov/pubmed/10841539 10841539]
[[Category: DNA-directed RNA polymerase]]
[[Category: DNA-directed RNA polymerase]]
[[Category: Methanothermobacter thermautotrophicus]]
[[Category: Methanothermobacter thermautotrophicus]]
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[[Category: protein structure initiative]]
[[Category: protein structure initiative]]
[[Category: psi]]
[[Category: psi]]
[[Category: structural genomics]]
[[Category: structural genomic]]
[[Category: three helix bundle]]
[[Category: three helix bundle]]
[[Category: zinc binding]]
[[Category: zinc binding]]


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''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Thu Mar 20 10:54:48 2008''

Revision as of 08:54, 20 March 2008

File:1ef4.gif


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1ef4
Ligands: ZN
Activity: DNA-directed RNA polymerase, with EC number 2.7.7.6
Coordinates: save as pdb, mmCIF, xml



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


Overview

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.

About this Structure

1EF4 is a Single protein structure of sequence from Methanothermobacter thermautotrophicus. Full crystallographic 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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