2EIY

Crystal Structure of T.th.HB8 Branched-Chain Amino Acid Aminotransferase Complexed with 4-Methylvaleric Acid

• PDB DOI: https://doi.org/10.2210/pdb2EIY/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: 1.35 Å
• R-Value Free: 0.201 
• R-Value Work: 0.189 
• R-Value Observed: 0.189 

Starting Model: experimental

Literature

Crystal Structure of T.th.HB8 Branched-Chain Amino Acid Aminotransferase Complexed with 4-Methylvaleric Acid

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: 103.9 kDa 
• Atom Count: 7,991 
• Modelled Residue Count: 895 
• Deposited Residue Count: 924 
• Unique protein chains: 1

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
Branched-chain amino acid aminotransferase	A, B, C	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 3 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram
PLP	D [auth A], H [auth B], L [auth C]	PYRIDOXAL-5'-PHOSPHATE C8 H10 N O6 P NGVDGCNFYWLIFO-UHFFFAOYSA-N
MPD	F [auth A], G [auth A], J [auth B], K [auth B], N [auth C]	(4S)-2-METHYL-2,4-PENTANEDIOL C6 H14 O2 SVTBMSDMJJWYQN-YFKPBYRVSA-N
4MV	E [auth A], I [auth B], M [auth C]	4-METHYL VALERIC ACID C6 H12 O2 FGKJLKRYENPLQH-UHFFFAOYSA-N

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 1.35 Å
• R-Value Free: 0.201 
• R-Value Work: 0.189 
• R-Value Observed: 0.189 
• Space Group: P 4₁ 2₁ 2

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 143.652	α = 90
b = 143.652	β = 90
c = 116.54	γ = 90

Software Package:

Software Name	Purpose
CNS	refinement
MAR345	data collection
MOSFLM	data reduction
SCALA	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: 2017-10-11
  Changes: Refinement description
• Version 1.3: 2023-10-25
  Changes: Data collection, Database references, Derived calculations, Refinement description