6ke3

X-ray diffraction
3.31Å resolution

Crystal structure of the alpha bata heterodimer of human IDH3 in complex with NADH

Released:

Function and Biology Details

Reaction catalysed:
Isocitrate + NAD(+) = 2-oxoglutarate + CO(2) + NADH
Biochemical function:
Biological process:

Structure analysis Details

Assembly composition:
hetero dimer (preferred)
PDBe Complex ID:
PDB-CPX-129150 (preferred)
Entry contents:
2 distinct polypeptide molecules
Macromolecules (2 distinct):
Isocitrate dehydrogenase [NAD] subunit alpha, mitochondrial Chains: A, C, E, G
Molecule details ›
Chains: A, C, E, G
Length: 341 amino acids
Theoretical weight: 36.83 KDa
Source organism: Homo sapiens
Expression system: Escherichia coli
UniProt:
  • Canonical: P50213 (Residues: 28-366; Coverage: 93%)
Gene name: IDH3A
Sequence domains: Isocitrate/isopropylmalate dehydrogenase
Isocitrate dehydrogenase [NAD] subunit beta, mitochondrial Chains: B, D, F, H
Molecule details ›
Chains: B, D, F, H
Length: 356 amino acids
Theoretical weight: 39.7 KDa
Source organism: Homo sapiens
Expression system: Escherichia coli
UniProt:
  • Canonical: O43837 (Residues: 35-374; Coverage: 88%)
Gene name: IDH3B
Sequence domains: Isocitrate/isopropylmalate dehydrogenase

Ligands and Environments


Cofactor: Ligand NAI 4 x NAI
No bound ligands
No modified residues

Experiments and Validation Details

Entry percentile scores
X-ray source: SSRF BEAMLINE BL17U1
Spacegroup: P21
Unit cell:
a: 99.365Å b: 162.669Å c: 114.776Å
α: 90° β: 100.38° γ: 90°
R-values:
R R work R free
0.253 0.25 0.299
Expression system: Escherichia coli