Biological Assembly 1  

 3D View: Structure | 1D-3D View | Validation Report

Global Symmetry: Asymmetric - C1 
Global Stoichiometry: Monomer - A1 

Biological assembly 1 assigned by authors.

Macromolecule Content

• Total Structure Weight: 14.24 kDa 
• Atom Count: 980 
• Modelled Residue Count: 135 
• Deposited Residue Count: 138 
• Unique protein chains: 1

2KUE

NMR structure of the PASTA domain 2 and 3 of Mycobacterium tuberculosis of PknB

• PDB DOI: 10.2210/pdb2KUE/pdb
• BMRB: 16733

• Classification: TRANSFERASE
• Organism(s): Mycobacterium tuberculosis H37Rv
• Expression System: Escherichia coli BL21(DE3)
• Mutation(s): No 


• Deposited: 2010-02-17 Released: 2010-04-14 
• Deposition Author(s): Barthe, P., Mukamolova, G., Roumestand, C., Cohen-Gonsaud, M.

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Experimental Data Snapshot

• Method: SOLUTION NMR
• Conformers Calculated: 30 
• Conformers Submitted: 30 
• Selection Criteria: structures with the lowest energy 

Literature

The structure of PknB extracellular PASTA domain from mycobacterium tuberculosis suggests a ligand-dependent kinase activation

Barthe, P., Mukamolova, G.V., Roumestand, C., Cohen-Gonsaud, M.

(2010) Structure 18: 606-615

• PubMed: 20462494 
• DOI: 10.1016/j.str.2010.02.013
• Primary Citation of Related Structures:  
  2KUD, 2KUE, 2KUF, 2KUI


• PubMed Abstract: 
  

PknB is a transmembrane Ser/Thr protein kinase that defines and belongs to an ultraconserved kinase subfamily found in Gram-positive bacteria. Essential for Mycobacterium tuberculosis growth, its close homolog in Bacillus subtilis has been linked to exit from dormancy. The kinase possesses an extracellular region composed of a repetition of PASTA domains, believed to bind peptidoglycan fragments that might act as a signaling molecule. We report here the first solution structure of this extracellular region. Small-angle X-ray scattering and nuclear magnetic resonance studies show that the four PASTA domains display an unexpected linear organization, contrary to what is observed in the distant protein PBP2x from Streptococccus pneumoniae where two PASTA domains fold over in a compact structure. We propose a model for PknB activation based on a ligand-dependent dimerization of the extracellular PASTA domains that initiates multiple signaling pathways.

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Organizational Affiliation: 

Centre National de la Recherche Scientifique UMR 5048, Centre de Biochimie Structurale, 29 rue de Navacelles, 34090 Montpellier, France.

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
Serine/threonine-protein kinase pknB	A	138	Mycobacterium tuberculosis H37Rv	Mutation(s): 0  Gene Names: Rv0014c, pknB, MTCY10H4.14c EC: 2.7.11.1
UniProt
Find proteins for P9WI81 (Mycobacterium tuberculosis (strain ATCC 25618 / H37Rv)) Explore P9WI81  Go to UniProtKB:  P9WI81

Experimental Data & Validation

Experimental Data

• Method: SOLUTION NMR
• Conformers Calculated: 30 
• Conformers Submitted: 30 
• Selection Criteria: structures with the lowest energy 
• OLDERADO: 2KUE Olderado

Structure Validation

Entry History 

Deposition Data

• Deposited Date: 2010-02-17 
• Released Date: 2010-04-14 
Deposition Author(s): Barthe, P., Mukamolova, G., Roumestand, C., Cohen-Gonsaud, M.

Revision History  

• Version 1.0: 2010-04-14
  Type: Initial release
  
• Version 1.1: 2011-07-13
  Changes: Version format compliance
• Version 1.2: 2020-02-26
  Changes: Data collection, Database references, Derived calculations, Other