4X3F

Crystal structure of the intracellular domain of the M. tuberculosis Ser/Thr kinase PknA


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.9 Å
  • R-Value Free: 0.243 
  • R-Value Work: 0.219 

wwPDB Validation 3D Report Full Report


This is version 1.1 of the entry. See complete history

Literature

The crystal structure of the catalytic domain of the ser/thr kinase PknA from M. tuberculosis shows an Src-like autoinhibited conformation.

Wagner, T.Alexandre, M.Duran, R.Barilone, N.Wehenkel, A.Alzari, P.M.Bellinzoni, M.

(2015) Proteins 83: 982-988

  • DOI: 10.1002/prot.24754

  • PubMed Abstract: 
  • Signal transduction mediated by Ser/Thr phosphorylation in Mycobacterium tuberculosis has been intensively studied in the last years, as its genome harbors eleven genes coding for eukaryotic-like Ser/Thr kinases. Here we describe the crystal structur ...

    Signal transduction mediated by Ser/Thr phosphorylation in Mycobacterium tuberculosis has been intensively studied in the last years, as its genome harbors eleven genes coding for eukaryotic-like Ser/Thr kinases. Here we describe the crystal structure and the autophosphorylation sites of the catalytic domain of PknA, one of two protein kinases essential for pathogen's survival. The structure of the ligand-free kinase domain shows an auto-inhibited conformation similar to that observed in human Tyr kinases of the Src-family. These results reinforce the high conservation of structural hallmarks and regulation mechanisms between prokaryotic and eukaryotic protein kinases.


    Organizational Affiliation

    Institut Pasteur, Unité De Microbiologie Structurale, Paris, 75724, France; CNRS UMR 3528, Paris, 75724, France; Université Paris Diderot, Sorbonne Paris Cité, Microbiologie Structurale, Paris, 75724, France.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
Serine/threonine-protein kinase PknA
A
337Mycobacterium tuberculosis (strain ATCC 25618 / H37Rv)Mutation(s): 0 
Gene Names: pknA
EC: 2.7.11.1
Find proteins for P9WI83 (Mycobacterium tuberculosis (strain ATCC 25618 / H37Rv))
Go to UniProtKB:  P9WI83
Entity ID: 2
MoleculeChainsSequence LengthOrganismDetails
Serine/threonine-protein kinase PknA
B
337Mycobacterium tuberculosis (strain ATCC 25618 / H37Rv)Mutation(s): 0 
Gene Names: pknA
EC: 2.7.11.1
Find proteins for P9WI83 (Mycobacterium tuberculosis (strain ATCC 25618 / H37Rv))
Go to UniProtKB:  P9WI83
Entity ID: 3
MoleculeChainsSequence LengthOrganismDetails
Serine/threonine-protein kinase PknA
C
337Mycobacterium tuberculosis (strain ATCC 25618 / H37Rv)Mutation(s): 0 
Gene Names: pknA
EC: 2.7.11.1
Find proteins for P9WI83 (Mycobacterium tuberculosis (strain ATCC 25618 / H37Rv))
Go to UniProtKB:  P9WI83
Small Molecules
Modified Residues  2 Unique
IDChainsTypeFormula2D DiagramParent
SEP
Query on SEP
A
L-PEPTIDE LINKINGC3 H8 N O6 PSER
TPO
Query on TPO
A, B, C
L-PEPTIDE LINKINGC4 H10 N O6 PTHR
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.9 Å
  • R-Value Free: 0.243 
  • R-Value Work: 0.219 
  • Space Group: C 1 2 1
Unit Cell:
Length (Å)Angle (°)
a = 102.310α = 90.00
b = 150.180β = 96.98
c = 96.540γ = 90.00
Software Package:
Software NamePurpose
XDSdata reduction
XSCALEdata scaling
PHASERphasing
REFMACrefinement

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2015-01-21
    Type: Initial release
  • Version 1.1: 2015-04-22
    Type: Database references