Biological Assembly 1  

 3D View: Structure

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

Biological assembly 1 assigned by authors.

Macromolecule Content

• Total Structure Weight: 6.58 kDa 
• Atom Count: 461 
• Modelled Residue Count: 65 
• Deposited Residue Count: 65 
• Unique protein chains: 1

2MGV

NMR structure of PASTA domain of PonA2 from Mycobacterium tuberculosis

• DOI: 10.2210/pdb2MGV/pdb
• BMRB: 19605

• Classification: PENICILLIN BINDING PROTEIN
• Organism(s): Mycobacterium tuberculosis H37Rv
• Expression System: Escherichia coli
• Mutation(s): No 


• Deposited: 2013-11-11 Released: 2013-12-25 
• Deposition Author(s): Calvanese, L., Falcigno, L., Maglione, C., Marasco, D., Ruggiero, A., Squeglia, F., Berisio, R., D'Auria, G.

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Experimental Data Snapshot

• Method: SOLUTION NMR
• Conformers Calculated: 150 
• Conformers Submitted: 10 
• Selection Criteria: structures with the least restraint violations 

Literature

Structural and binding properties of the PASTA domain of PonA2, a key penicillin binding protein from Mycobacterium tuberculosis.

Calvanese, L., Falcigno, L., Maglione, C., Marasco, D., Ruggiero, A., Squeglia, F., Berisio, R., D'Auria, G.

(2014) Biopolymers 101: 712-719

• PubMed: 24281824 
• DOI: 10.1002/bip.22447
• Primary Citation of Related Structures:  
  2MGV


• PubMed Abstract: 
  

PonA2 is one of the two class A penicillin binding proteins of Mycobacterium tuberculosis, the etiologic agent of tuberculosis. It plays a complex role in mycobacterial physiology and is spotted as a promising target for inhibitors. PonA2 is involved in adaptation of M. tuberculosis to dormancy, an ability which has been attributed to the presence in its sequence of a C-terminal PASTA domain. Since PASTA modules are typically considered as β-lactam antibiotic binding domains, we determined the solution structure of the PASTA domain from PonA2 and analyzed its binding properties versus a plethora of potential binders, including the β-lactam antibiotics, two typical muropeptide mimics, and polymeric peptidoglycan. We show that, despite a high structural similarity with other PASTA domains, the PASTA domain of PonA2 displays different binding properties, as it is not able to bind muropeptides, or β-lactams, or polymeric peptidoglycan. These results indicate that the role of PASTA domains cannot be generalized, as their specific binding properties strongly depend on surface residues, which are widely variable.

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Organizational Affiliation: 

CIRPeB, University of Naples Federico II, Naples, Italy.

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
Bifunctional membrane-associated penicillin-binding protein 1A/1B ponA2	A	65	Mycobacterium tuberculosis H37Rv	Mutation(s): 0  Gene Names: RVBD_3682, ponA2, Rv3682 EC: 2.4.1.129
Find proteins for I6YGX2 (Mycobacterium tuberculosis (strain ATCC 25618 / H37Rv)) Explore I6YGX2  Go to UniProtKB:  I6YGX2

Experimental Data & Validation

Experimental Data

• Method: SOLUTION NMR
• Conformers Calculated: 150 
• Conformers Submitted: 10 
• Selection Criteria: structures with the least restraint violations 
• OLDERADO: 2MGV Olderado

Structure Validation

Entry History 

Deposition Data

• Deposited Date: 2013-11-11 
• Released Date: 2013-12-25 
Deposition Author(s): Calvanese, L., Falcigno, L., Maglione, C., Marasco, D., Ruggiero, A., Squeglia, F., Berisio, R., D'Auria, G.

Revision History  

• Version 1.0: 2013-12-25
  Type: Initial release
  
• Version 1.1: 2014-05-07
  Changes: Database references