4X3F

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


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.90 Å
  • R-Value Free: 0.243 
  • R-Value Work: 0.219 
  • R-Value Observed: 0.220 

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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
  • Primary Citation of Related Structures:  
    4X3F

  • 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 structure an ...

    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
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Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
Serine/threonine-protein kinase PknA A337Mycobacterium tuberculosis H37RvMutation(s): 0 
Gene Names: pknARv0015cMTCY10H4.15c
EC: 2.7.11.1
Find proteins for P9WI83 (Mycobacterium tuberculosis (strain ATCC 25618 / H37Rv))
Explore P9WI83 
Go to UniProtKB:  P9WI83
Protein Feature View
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  • Reference Sequence
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Entity ID: 2
MoleculeChainsSequence LengthOrganismDetailsImage
Serine/threonine-protein kinase PknA B337Mycobacterium tuberculosis H37RvMutation(s): 0 
Gene Names: pknARv0015cMTCY10H4.15c
EC: 2.7.11.1
Find proteins for P9WI83 (Mycobacterium tuberculosis (strain ATCC 25618 / H37Rv))
Explore P9WI83 
Go to UniProtKB:  P9WI83
Protein Feature View
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  • Reference Sequence
Find similar proteins by:  (by identity cutoff)  |  Structure
Entity ID: 3
MoleculeChainsSequence LengthOrganismDetailsImage
Serine/threonine-protein kinase PknA C337Mycobacterium tuberculosis H37RvMutation(s): 0 
Gene Names: pknARv0015cMTCY10H4.15c
EC: 2.7.11.1
Find proteins for P9WI83 (Mycobacterium tuberculosis (strain ATCC 25618 / H37Rv))
Explore P9WI83 
Go to UniProtKB:  P9WI83
Protein Feature View
Expand
  • Reference Sequence
Small Molecules
Modified Residues  2 Unique
IDChainsTypeFormula2D DiagramParent
SEP
Query on SEP
AL-PEPTIDE LINKINGC3 H8 N O6 PSER
TPO
Query on TPO
AL-PEPTIDE LINKINGC4 H10 N O6 PTHR
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.90 Å
  • R-Value Free: 0.243 
  • R-Value Work: 0.219 
  • R-Value Observed: 0.220 
  • Space Group: C 1 2 1
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 102.31α = 90
b = 150.18β = 96.98
c = 96.54γ = 90
Software Package:
Software NamePurpose
REFMACrefinement
XDSdata reduction
XSCALEdata scaling
PHASERphasing

Structure Validation

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Entry History 

Deposition Data

Revision History 

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