1i6v
From Proteopedia
| Line 1: | Line 1: | ||
| - | [[Image:1i6v.gif|left|200px]] | + | [[Image:1i6v.gif|left|200px]] |
| - | + | ||
| - | '''THERMUS AQUATICUS CORE RNA POLYMERASE-RIFAMPICIN COMPLEX''' | + | {{Structure |
| + | |PDB= 1i6v |SIZE=350|CAPTION= <scene name='initialview01'>1i6v</scene>, resolution 3.3Å | ||
| + | |SITE= | ||
| + | |LIGAND= <scene name='pdbligand=MG:MAGNESIUM+ION'>MG</scene>, <scene name='pdbligand=ZN:ZINC+ION'>ZN</scene> and <scene name='pdbligand=RFP:RIFAMPICIN'>RFP</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= | ||
| + | }} | ||
| + | |||
| + | '''THERMUS AQUATICUS CORE RNA POLYMERASE-RIFAMPICIN COMPLEX''' | ||
| + | |||
==Overview== | ==Overview== | ||
| Line 7: | Line 16: | ||
==About this Structure== | ==About this Structure== | ||
| - | 1I6V is a [ | + | 1I6V is a [[Protein complex]] structure of sequences from [http://en.wikipedia.org/wiki/Thermus_aquaticus Thermus aquaticus]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1I6V OCA]. |
==Reference== | ==Reference== | ||
| - | Structural mechanism for rifampicin inhibition of bacterial rna polymerase., Campbell EA, Korzheva N, Mustaev A, Murakami K, Nair S, Goldfarb A, Darst SA, Cell. 2001 Mar 23;104(6):901-12. PMID:[http:// | + | Structural mechanism for rifampicin inhibition of bacterial rna polymerase., Campbell EA, Korzheva N, Mustaev A, Murakami K, Nair S, Goldfarb A, Darst SA, Cell. 2001 Mar 23;104(6):901-12. PMID:[http://www.ncbi.nlm.nih.gov/pubmed/11290327 11290327] |
[[Category: DNA-directed RNA polymerase]] | [[Category: DNA-directed RNA polymerase]] | ||
[[Category: Protein complex]] | [[Category: Protein complex]] | ||
| Line 28: | Line 37: | ||
[[Category: transferase]] | [[Category: transferase]] | ||
| - | ''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Thu | + | ''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Thu Mar 20 11:46:15 2008'' |
Revision as of 09:46, 20 March 2008
| |||||||
| , resolution 3.3Å | |||||||
|---|---|---|---|---|---|---|---|
| Ligands: | , and | ||||||
| Activity: | DNA-directed RNA polymerase, with EC number 2.7.7.6 | ||||||
| Coordinates: | save as pdb, mmCIF, xml | ||||||
THERMUS AQUATICUS CORE RNA POLYMERASE-RIFAMPICIN COMPLEX
Overview
Rifampicin (Rif) is one of the most potent and broad spectrum antibiotics against bacterial pathogens and is a key component of anti-tuberculosis therapy, stemming from its inhibition of the bacterial RNA polymerase (RNAP). We determined the crystal structure of Thermus aquaticus core RNAP complexed with Rif. The inhibitor binds in a pocket of the RNAP beta subunit deep within the DNA/RNA channel, but more than 12 A away from the active site. The structure, combined with biochemical results, explains the effects of Rif on RNAP function and indicates that the inhibitor acts by directly blocking the path of the elongating RNA when the transcript becomes 2 to 3 nt in length.
About this Structure
1I6V is a Protein complex structure of sequences from Thermus aquaticus. Full crystallographic information is available from OCA.
Reference
Structural mechanism for rifampicin inhibition of bacterial rna polymerase., Campbell EA, Korzheva N, Mustaev A, Murakami K, Nair S, Goldfarb A, Darst SA, Cell. 2001 Mar 23;104(6):901-12. PMID:11290327
Page seeded by OCA on Thu Mar 20 11:46:15 2008
