2JRC

Solution structure of Peptidyl-tRNA Hydrolase from Mycobacterium tuberculosis H37Rv.


Experimental Data Snapshot

  • Method: SOLUTION NMR
  • Conformers Calculated: 135 
  • Conformers Submitted: 40 
  • Selection Criteria: target function 

wwPDB Validation 3D Report Full Report


This is version 1.1 of the entry. See complete history


Literature

Solution structure and dynamics of peptidyl-tRNA hydrolase from Mycobacterium tuberculosis H37Rv.

Pulavarti, S.V.Jain, A.Pathak, P.P.Mahmood, A.Arora, A.

(2008) J Mol Biol 378: 165-177

  • DOI: 10.1016/j.jmb.2008.02.027
  • Structures With Same Primary Citation

  • PubMed Abstract: 
  • Eubacterial peptidyl-tRNA hydrolase is an essential enzyme that hydrolyzes peptidyl-tRNAs that are released into the cytoplasm because of premature termination of translation, expression of minigenes, and action of lincosamide and macrolide antibioti ...

    Eubacterial peptidyl-tRNA hydrolase is an essential enzyme that hydrolyzes peptidyl-tRNAs that are released into the cytoplasm because of premature termination of translation, expression of minigenes, and action of lincosamide and macrolide antibiotics. This averts the arrest of protein synthesis caused by depletion of free tRNA. Recently, we demonstrated that Mycobacterium tuberculosis peptidyl-tRNA hydrolase (MtPth) is present in the cytosol of mycobacterium and is capable of hydrolyzing peptidyl-tRNA. Here, we present the solution structure of MtPth, which is the first solution structure for this family of proteins. MtPth typically consists of seven-stranded mixed beta-sheet surrounded by six alpha-helices. The backbone dynamics for this enzyme were probed by measuring (15)N relaxation parameters and these were analyzed with model-free formalism and reduced spectral density mapping analysis. Overall, the protein molecule has tau(m) of 9.67+/-0.02 ns. The (15)N relaxation data analysis reveals that while majority of the protein backbone is rigid to motions, a short segment consisting of enzymatically critical residue H22, the loop-helix cover over the active site crevice, and the C-terminal helical hairpin exhibit motions on the milli-to microsecond timescale, all of which are linked to interaction with the substrate peptidyl-tRNA.


    Organizational Affiliation

    Molecular and Structural Biology Division, Central Drug Research Institute, Lucknow-226 001, India.



Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
Peptidyl-tRNA hydrolase
A
204N/AMutation(s): 0 
Gene Names: pth
EC: 3.1.1.29
Find proteins for P9WHN7 (Mycobacterium tuberculosis (strain ATCC 25618 / H37Rv))
Go to UniProtKB:  P9WHN7
Experimental Data & Validation

Experimental Data

  • Method: SOLUTION NMR
  • Conformers Calculated: 135 
  • Conformers Submitted: 40 
  • Selection Criteria: target function 
  • OLDERADO: 2JRC Olderado

Structure Validation

View Full Validation Report



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2008-05-27
    Type: Initial release
  • Version 1.1: 2011-07-13
    Changes: Version format compliance