1i6v: Difference between revisions

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== Structural highlights ==
== Structural highlights ==
<table><tr><td colspan='2'>[[1i6v]] is a 5 chain structure with sequence 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]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=1I6V FirstGlance]. <br>
<table><tr><td colspan='2'>[[1i6v]] is a 5 chain structure with sequence 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]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=1I6V FirstGlance]. <br>
</td></tr><tr><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat"><scene name='pdbligand=MG:MAGNESIUM+ION'>MG</scene>, <scene name='pdbligand=RFP:RIFAMPICIN'>RFP</scene>, <scene name='pdbligand=ZN:ZINC+ION'>ZN</scene><br>
</td></tr><tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat"><scene name='pdbligand=MG:MAGNESIUM+ION'>MG</scene>, <scene name='pdbligand=RFP:RIFAMPICIN'>RFP</scene>, <scene name='pdbligand=ZN:ZINC+ION'>ZN</scene></td></tr>
<tr><td class="sblockLbl"><b>[[Non-Standard_Residue|NonStd Res:]]</b></td><td class="sblockDat"><scene name='pdbligand=UNK:UNKNOWN'>UNK</scene></td></tr>
<tr id='NonStdRes'><td class="sblockLbl"><b>[[Non-Standard_Residue|NonStd Res:]]</b></td><td class="sblockDat"><scene name='pdbligand=UNK:UNKNOWN'>UNK</scene></td></tr>
<tr><td class="sblockLbl"><b>[[Related_structure|Related:]]</b></td><td class="sblockDat">[[1hqm|1hqm]]</td></tr>
<tr id='related'><td class="sblockLbl"><b>[[Related_structure|Related:]]</b></td><td class="sblockDat">[[1hqm|1hqm]]</td></tr>
<tr><td class="sblockLbl"><b>Activity:</b></td><td class="sblockDat"><span class='plainlinks'>[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] </span></td></tr>
<tr id='activity'><td class="sblockLbl"><b>Activity:</b></td><td class="sblockDat"><span class='plainlinks'>[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] </span></td></tr>
<tr><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=1i6v FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1i6v OCA], [http://www.rcsb.org/pdb/explore.do?structureId=1i6v RCSB], [http://www.ebi.ac.uk/pdbsum/1i6v PDBsum]</span></td></tr>
<tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=1i6v FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1i6v OCA], [http://www.rcsb.org/pdb/explore.do?structureId=1i6v RCSB], [http://www.ebi.ac.uk/pdbsum/1i6v PDBsum]</span></td></tr>
<table>
</table>
== Function ==
[[http://www.uniprot.org/uniprot/RPOZ_THEAQ RPOZ_THEAQ]] Promotes RNA polymerase assembly. Latches the N- and C-terminal regions of the beta' subunit thereby facilitating its interaction with the beta and alpha subunits.<ref>PMID:11158566</ref> 
== Evolutionary Conservation ==
== Evolutionary Conservation ==
[[Image:Consurf_key_small.gif|200px|right]]
[[Image:Consurf_key_small.gif|200px|right]]
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[[Category: DNA-directed RNA polymerase]]
[[Category: DNA-directed RNA polymerase]]
[[Category: Thermus aquaticus]]
[[Category: Thermus aquaticus]]
[[Category: Campbell, E A.]]
[[Category: Campbell, E A]]
[[Category: Darst, S A.]]
[[Category: Darst, S A]]
[[Category: Goldfarb, A.]]
[[Category: Goldfarb, A]]
[[Category: Korzheva, N.]]
[[Category: Korzheva, N]]
[[Category: Murakami, K.]]
[[Category: Murakami, K]]
[[Category: Mustaev, A.]]
[[Category: Mustaev, A]]
[[Category: 3d- structure]]
[[Category: 3d- structure]]
[[Category: Dna-directed rna polymerase]]
[[Category: Dna-directed rna polymerase]]
[[Category: Transcription]]
[[Category: Transcription]]
[[Category: Transferase]]
[[Category: Transferase]]

Revision as of 07:31, 25 December 2014

THERMUS AQUATICUS CORE RNA POLYMERASE-RIFAMPICIN COMPLEXTHERMUS AQUATICUS CORE RNA POLYMERASE-RIFAMPICIN COMPLEX

Structural highlights

1i6v is a 5 chain structure with sequence from Thermus aquaticus. Full crystallographic information is available from OCA. For a guided tour on the structure components use FirstGlance.
Ligands:, ,
NonStd Res:
Activity:DNA-directed RNA polymerase, with EC number 2.7.7.6
Resources:FirstGlance, OCA, RCSB, PDBsum

Function

[RPOZ_THEAQ] Promotes RNA polymerase assembly. Latches the N- and C-terminal regions of the beta' subunit thereby facilitating its interaction with the beta and alpha subunits.[1]

Evolutionary Conservation

Check, as determined by ConSurfDB. You may read the explanation of the method and the full data available from ConSurf.

Publication Abstract from PubMed

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.

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[2]

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.

See Also

References

  1. Minakhin L, Bhagat S, Brunning A, Campbell EA, Darst SA, Ebright RH, Severinov K. Bacterial RNA polymerase subunit omega and eukaryotic RNA polymerase subunit RPB6 are sequence, structural, and functional homologs and promote RNA polymerase assembly. Proc Natl Acad Sci U S A. 2001 Jan 30;98(3):892-7. PMID:11158566 doi:http://dx.doi.org/10.1073/pnas.98.3.892
  2. Campbell EA, Korzheva N, Mustaev A, Murakami K, Nair S, Goldfarb A, Darst SA. Structural mechanism for rifampicin inhibition of bacterial rna polymerase. Cell. 2001 Mar 23;104(6):901-12. PMID:11290327

1i6v, resolution 3.30Å

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