2EJ2

Crystal Structure of T.th.HB8 Branched-Chain Amino Acid Aminotransferase Complexed with N-(5'-Phosphopyridoxyl)-L-Glutamate

• PDB DOI: https://doi.org/10.2210/pdb2EJ2/pdb

• Classification: TRANSFERASE
• Organism(s): Thermus thermophilus HB8
• Expression System: Escherichia coli BL21(DE3)
• Mutation(s): No 


• Deposited: 2007-03-14 Released: 2008-03-18 
• Deposition Author(s): Goto, M.

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Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 2.00 Å
• R-Value Free: 0.216 
• R-Value Work: 0.190 
• R-Value Observed: 0.190 

Literature

Crystal Structure of T.th.HB8 Branched-Chain Amino Acid Aminotransferase Complexed with N-(5'-Phosphopyridoxyl)-L-Glutamate

Goto, M.

To be published.

Biological Assembly 1  

Global Symmetry: Dihedral - D3  (Explore in 3D)
Global Stoichiometry: Homo 6-mer - A6 

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

Macromolecule Content

• Total Structure Weight: 206.95 kDa 
• Atom Count: 15,270 
• Modelled Residue Count: 1,793 
• Deposited Residue Count: 1,848 
• Unique protein chains: 1

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
Branched-chain amino acid aminotransferase	A, B, C, D, E, F	308	Thermus thermophilus HB8	Mutation(s): 0  EC: 2.6.1.42
UniProt
Find proteins for Q5SM19 (Thermus thermophilus (strain ATCC 27634 / DSM 579 / HB8)) Explore Q5SM19  Go to UniProtKB:  Q5SM19

Small Molecules

Ligands 2 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram
PPE	G [auth A], I [auth B], J [auth C], K [auth D], L [auth E], M [auth F]	4-[(1,3-DICARBOXY-PROPYLAMINO)-METHYL]-3-HYDROXY-2-METHYL-5-PHOSPHONOOXYMETHYL-PYRIDINIUM C13 H20 N2 O9 P JMRKOGDJNHPMHS-JTQLQIEISA-O
MPD	H [auth A], N [auth F]	(4S)-2-METHYL-2,4-PENTANEDIOL C6 H14 O2 SVTBMSDMJJWYQN-YFKPBYRVSA-N

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 2.00 Å
• R-Value Free: 0.216 
• R-Value Work: 0.190 
• R-Value Observed: 0.190 
• Space Group: P 2₁ 2₁ 2₁

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 117.02	α = 90
b = 144.216	β = 90
c = 147.042	γ = 90

Software Package:

Software Name	Purpose
CNS	refinement
HKL-2000	data collection
HKL-2000	data reduction
HKL-2000	data scaling
AMoRE	phasing

Structure Validation

Entry History 

Deposition Data

• Released Date: 2008-03-18 
Deposition Author(s): Goto, M.

Revision History  

• Version 1.0: 2008-03-18
  Type: Initial release
  
• Version 1.1: 2011-07-13
  Changes: Source and taxonomy, Version format compliance
• Version 1.2: 2023-10-25
  Changes: Data collection, Database references, Derived calculations, Refinement description