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CRYSTAL STRUCTURE OF ESCHELICHIA COLI BRANCHED-CHAIN AMINO ACID AMINOTRANSFERASE

X-ray diffraction
2.15Å resolution
PDB entry 1iyd coloured by chain, front view.
PDB entry 1iyd coloured by chain, side view.
PDB entry 1iyd coloured by chain, top view.
Source organism: Escherichia coli
Assembly composition:
homo hexamer (preferred)
Entry contents: 1 distinct polypeptide molecule

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Assemblies

Assembly 1 (preferred)
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Assembly Name: Branched-chain-amino-acid aminotransferase
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Multimeric state: homo hexamer
Accessible surface area: 54130.29 Å2
Buried surface area: 30114.0 Å2
Dissociation area: 4,621.16 Å2
Dissociation energy (ΔGdiss): 11.41 kcal/mol
Dissociation entropy (TΔSdiss): 30.71 kcal/mol
Symmetry number: 6
PDBe Complex ID: PDB-CPX-142021

Macromolecules

Branched-chain-amino-acid aminotransferase
Chains: A, B, C
Length: 309 amino acids
Theoretical weight: 34.13 KDa
Source organism: Escherichia coli
Expression system: Escherichia coli
UniProt:
  • Canonical: P0AB80 (Residues: 1-309; Coverage: 100%)
Gene names: JW5606, b3770, ilvE
Pfam: Amino-transferase class IV
InterPro:
CATH:
SCOP: D-aminoacid aminotransferase-like PLP-dependent enzymes
Branched-chain-amino-acid aminotransferase in PDB entry 1iyd, assembly 1, front view.
Branched-chain-amino-acid aminotransferase in PDB entry 1iyd, assembly 1, side view.
Branched-chain-amino-acid aminotransferase in PDB entry 1iyd, assembly 1, top view.
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