X-ray diffraction
1.9Å resolution

Crystal structure of ancestral apicomplexan malate dehydrogenase with malate.

Source organism: Apicomplexa
Entry authors: Boucher JI, Jacobowitz JR, Beckett BC, Classen S, Theobald DL

Function and Biology Details

Reaction catalysed:
(S)-lactate + NAD(+) = pyruvate + NADH
Biochemical function:
Biological process:
  • not assigned
Cellular component:
  • not assigned

Structure analysis Details

Assembly composition:
homo tetramer (preferred)
Entry contents:
1 distinct polypeptide molecule
L-lactate dehydrogenase Chains: A, B, C, D, E, F, G, H
Molecule details ›
Chains: A, B, C, D, E, F, G, H
Length: 331 amino acids
Theoretical weight: 36.46 KDa
Source organism: Apicomplexa
Expression system: Escherichia coli BL21(DE3)
  • Canonical: A0A075B5H0 (Residues: 1-331; Coverage: 100%)
Sequence domains:
Structure domains:

Ligands and Environments

Cofactor: Ligand NAI 8 x NAI
1 bound ligand:
No modified residues

Experiments and Validation Details

Entry percentile scores
X-ray source: ALS BEAMLINE 12.3.1
Spacegroup: P1
Unit cell:
a: 59.311Å b: 90.688Å c: 136.304Å
α: 90.01° β: 90.01° γ: 71.44°
R R work R free
0.19 0.189 0.238
Expression system: Escherichia coli BL21(DE3)