3fvu

X-ray diffraction
1.55Å resolution

Crystal Structure of Human Kynurenine Aminotransferase I in Complex with Indole-3-acetic Acid

Released:

Function and Biology Details

Reactions catalysed:
L-glutamine + phenylpyruvate = 2-oxoglutaramate + L-phenylalanine
(1a) L-kynurenine + 2-oxoglutarate = 4-(2-aminophenyl)-2,4-dioxobutanoate + L-glutamate
(1a) an L-cysteine-S-conjugate = a thiol + 2-aminoporp-2-enoate
Biological process:
Cellular component:

Structure analysis Details

Assembly composition:
homo dimer (preferred)
PDBe Complex ID:
PDB-CPX-172574 (preferred)
Entry contents:
1 distinct polypeptide molecule
Macromolecule:
Kynurenine--oxoglutarate transaminase 1 Chains: A, B
Molecule details ›
Chains: A, B
Length: 422 amino acids
Theoretical weight: 48.16 KDa
Source organism: Homo sapiens
Expression system: Spodoptera frugiperda
UniProt:
  • Canonical: Q16773 (Residues: 1-422; Coverage: 100%)
Gene names: CCBL1, KYAT1
Sequence domains: Aminotransferase class I and II
Structure domains:

Ligands and Environments

3 bound ligands:
1 modified residue:

Experiments and Validation Details

Entry percentile scores
X-ray source: NSLS BEAMLINE X29A
Spacegroup: C2
Unit cell:
a: 106.364Å b: 108.454Å c: 81.867Å
α: 90° β: 114.2° γ: 90°
R-values:
R R work R free
0.186 0.185 0.21
Expression system: Spodoptera frugiperda