5UH7

Crystal structure of beta'MtbSI of Mycobacterium tuberculosis RNA polymerase


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.20 Å
  • R-Value Free: 0.246 
  • R-Value Work: 0.220 
  • R-Value Observed: 0.223 

wwPDB Validation   3D Report Full Report


This is version 1.3 of the entry. See complete history


Literature

Structural Basis of Mycobacterium tuberculosis Transcription and Transcription Inhibition.

Lin, W.Mandal, S.Degen, D.Liu, Y.Ebright, Y.W.Li, S.Feng, Y.Zhang, Y.Mandal, S.Jiang, Y.Liu, S.Gigliotti, M.Talaue, M.Connell, N.Das, K.Arnold, E.Ebright, R.H.

(2017) Mol Cell 66: 169-179.e8

  • DOI: 10.1016/j.molcel.2017.03.001
  • Primary Citation of Related Structures:  
    5UH5, 5UH6, 5UH7, 5UH8, 5UH9, 5UHA, 5UHB, 5UHC, 5UHD, 5UHE, 5UHF, 5UHG

  • PubMed Abstract: 
  • Mycobacterium tuberculosis (Mtb) is the causative agent of tuberculosis, which kills 1.8 million annually. Mtb RNA polymerase (RNAP) is the target of the first-line antituberculosis drug rifampin (Rif). We report crystal structures of Mtb RNAP, alone and in complex with Rif, at 3 ...

    Mycobacterium tuberculosis (Mtb) is the causative agent of tuberculosis, which kills 1.8 million annually. Mtb RNA polymerase (RNAP) is the target of the first-line antituberculosis drug rifampin (Rif). We report crystal structures of Mtb RNAP, alone and in complex with Rif, at 3.8-4.4 Å resolution. The results identify an Mtb-specific structural module of Mtb RNAP and establish that Rif functions by a steric-occlusion mechanism that prevents extension of RNA. We also report non-Rif-related compounds-Nα-aroyl-N-aryl-phenylalaninamides (AAPs)-that potently and selectively inhibit Mtb RNAP and Mtb growth, and we report crystal structures of Mtb RNAP in complex with AAPs. AAPs bind to a different site on Mtb RNAP than Rif, exhibit no cross-resistance with Rif, function additively when co-administered with Rif, and suppress resistance emergence when co-administered with Rif.


    Organizational Affiliation

    Waksman Institute and Department of Chemistry and Chemical Biology, Rutgers University, Piscataway, NJ 08854, USA. Electronic address: ebright@waksman.rutgers.edu.



Macromolecules
Find similar proteins by:  (by identity cutoff)  |  3D Structure
Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
DNA-directed RNA polymerase subunit beta'A, B169Mycobacterium tuberculosis H37RvMutation(s): 0 
Gene Names: rpoCRv0668MTCI376.07c
EC: 2.7.7.6
UniProt
Find proteins for P9WGY7 (Mycobacterium tuberculosis (strain ATCC 25618 / H37Rv))
Explore P9WGY7 
Go to UniProtKB:  P9WGY7
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupP9WGY7
Protein Feature View
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  • Reference Sequence
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.20 Å
  • R-Value Free: 0.246 
  • R-Value Work: 0.220 
  • R-Value Observed: 0.223 
  • Space Group: P 1 21 1
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 40.753α = 90
b = 97.5β = 93.3
c = 53.741γ = 90
Software Package:
Software NamePurpose
HKL-2000data scaling
PDB_EXTRACTdata extraction
HKL-2000data reduction
PHENIXphasing
DENZOdata reduction
SCALEPACKdata scaling
PHENIXrefinement

Structure Validation

View Full Validation Report




Entry History 

Deposition Data

Revision History  (Full details and data files)

  • Version 1.0: 2017-04-12
    Type: Initial release
  • Version 1.1: 2017-04-26
    Changes: Database references
  • Version 1.2: 2017-05-03
    Changes: Database references
  • Version 1.3: 2017-11-22
    Changes: Refinement description