1ef4
From Proteopedia
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'''SOLUTION STRUCTURE OF THE ESSENTIAL RNA POLYMERASE SUBUNIT RPB10 FROM METHANOBACTERIUM THERMOAUTOTROPHICUM''' | '''SOLUTION STRUCTURE OF THE ESSENTIAL RNA POLYMERASE SUBUNIT RPB10 FROM METHANOBACTERIUM THERMOAUTOTROPHICUM''' | ||
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[[Category: Mcintosh, L P.]] | [[Category: Mcintosh, L P.]] | ||
[[Category: NESG, Northeast Structural Genomics Consortium.]] | [[Category: NESG, Northeast Structural Genomics Consortium.]] | ||
| - | [[Category: | + | [[Category: Nesg]] |
| - | [[Category: | + | [[Category: Northeast structural genomics consortium]] |
| - | [[Category: | + | [[Category: Protein structure initiative]] |
| - | [[Category: | + | [[Category: Psi]] |
| - | [[Category: | + | [[Category: Structural genomic]] |
| - | [[Category: | + | [[Category: Three helix bundle]] |
| - | [[Category: | + | [[Category: Zinc binding]] |
| - | + | ''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Fri May 2 15:01:18 2008'' | |
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Revision as of 12:01, 2 May 2008
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 Page seeded by OCA on Fri May 2 15:01:18 2008
Categories: DNA-directed RNA polymerase | Methanothermobacter thermautotrophicus | Single protein | Arrowsmith, C H. | Edwards, A M. | Mackereth, C D. | Mcintosh, L P. | NESG, Northeast Structural Genomics Consortium. | Nesg | Northeast structural genomics consortium | Protein structure initiative | Psi | Structural genomic | Three helix bundle | Zinc binding
