3DTG

Structural analysis of mycobacterial branched chain aminotransferase- implications for inhibitor design

• PDB DOI: https://doi.org/10.2210/pdb3DTG/pdb

• Classification: TRANSFERASE
• Organism(s): Mycolicibacterium smegmatis
• Expression System: Escherichia coli
• Mutation(s): No 


• Deposited: 2008-07-15 Released: 2009-06-23 
• Deposition Author(s): Castell, A., Unge, T.

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Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 1.90 Å
• R-Value Free: 0.274 
• R-Value Work: 0.238 

Starting Model: experimental

Literature

Structural analysis of mycobacterial branched chain aminotransferase - implications for inhibitor design

Castell, A., Unge, T.

To be published.

Biological Assembly 1  

Global Symmetry: Cyclic - C2  (Explore in 3D)
Global Stoichiometry: Homo 2-mer - A2 

Biological assembly 1 assigned by authors and generated by PISA (software)

Macromolecule Content

• Total Structure Weight: 81.53 kDa 
• Atom Count: 5,866 
• Modelled Residue Count: 726 
• Deposited Residue Count: 744 
• Unique protein chains: 1

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
Branched-chain amino acid aminotransferase	A, B	372	Mycolicibacterium smegmatis	Mutation(s): 0  Gene Names: ilvE, MSMEG_4276 EC: 2.6.1.42
UniProt
Find proteins for A0R066 (Mycolicibacterium smegmatis (strain ATCC 700084 / mc(2)155)) Explore A0R066  Go to UniProtKB:  A0R066

Small Molecules

Ligands 3 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram
PLP	C [auth A], F [auth B]	PYRIDOXAL-5'-PHOSPHATE C8 H10 N O6 P NGVDGCNFYWLIFO-UHFFFAOYSA-N
OBZ	D [auth A]	O-benzylhydroxylamine C7 H9 N O XYEOALKITRFCJJ-UHFFFAOYSA-N
GOL	E [auth A], G [auth B]	GLYCEROL C3 H8 O3 PEDCQBHIVMGVHV-UHFFFAOYSA-N

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 1.90 Å
• R-Value Free: 0.274 
• R-Value Work: 0.238 
• Space Group: P 1 2₁ 1

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 60	α = 90
b = 87.8	β = 105.8
c = 72.9	γ = 90

Software Package:

Software Name	Purpose
HKL-2000	data collection
MOLREP	phasing
CNS	refinement
MOSFLM	data reduction
SCALA	data scaling

Structure Validation

Entry History 

Deposition Data

• Released Date: 2009-06-23 
Deposition Author(s): Castell, A., Unge, T.

Revision History  

• Version 1.0: 2009-06-23
  Type: Initial release
  
• Version 1.1: 2011-07-13
  Changes: Non-polymer description, Version format compliance
• Version 1.2: 2018-05-23
  Changes: Data collection
• Version 1.3: 2023-11-01
  Changes: Data collection, Database references, Derived calculations, Refinement description