X-ray diffraction
2.91Å resolution

Crystal structure of the T-state of maize C4-phosphoenolpyruvate carboxylase in complex with citrate

Source organism: Zea mays
Entry authors: Carrizosa-Carbajal EI, Munoz-Clares RA, Gonzalez-Segura L

Function and Biology Details

Reaction catalysed:
Phosphate + oxaloacetate = H(2)O + phosphoenolpyruvate + HCO(3)(-)
Biochemical function:
Biological process:
Cellular component:

Structure analysis Details

Assembly composition:
homo tetramer (preferred)
Entry contents:
1 distinct polypeptide molecule
Phosphoenolpyruvate carboxylase 1 Chains: A, B, C, D, E, F, G, H
Molecule details ›
Chains: A, B, C, D, E, F, G, H
Length: 970 amino acids
Theoretical weight: 109.48 KDa
Source organism: Zea mays
Expression system: Escherichia coli BL21
  • Canonical: P04711 (Residues: 1-970; Coverage: 100%)
Gene names: PEP1, PPC
Sequence domains: Phosphoenolpyruvate carboxylase

Ligands and Environments

No modified residues

Experiments and Validation Details

Entry percentile scores
X-ray source: APS BEAMLINE 19-ID
Spacegroup: P21
Unit cell:
a: 140.692Å b: 217.976Å c: 173.569Å
α: 90° β: 91.05° γ: 90°
R R work R free
0.22 0.218 0.25
Expression system: Escherichia coli BL21