1kkb

X-ray diffraction
2.6Å resolution

Complex of Escherichia coli Adenylosuccinate Synthetase with IMP and Hadacidin

Released:

Function and Biology Details

Reaction catalysed:
GTP + IMP + L-aspartate = GDP + phosphate + N(6)-(1,2-dicarboxyethyl)-AMP
Biochemical function:
Biological process:
Cellular component:

Structure analysis Details

Assembly composition:
homo dimer (preferred)
Entry contents:
1 distinct polypeptide molecule
Macromolecule:
Adenylosuccinate synthetase Chain: A
Molecule details ›
Chain: A
Length: 432 amino acids
Theoretical weight: 47.4 KDa
Source organism: Escherichia coli K-12
Expression system: Escherichia coli
UniProt:
  • Canonical: P0A7D4 (Residues: 1-432; Coverage: 100%)
Gene names: JW4135, adeK, b4177, purA
Sequence domains: Adenylosuccinate synthetase
Structure domains:

Ligands and Environments

2 bound ligands:
No modified residues

Experiments and Validation Details

Entry percentile scores
X-ray source: SIEMENS
Spacegroup: P3221
Unit cell:
a: 80.12Å b: 80.12Å c: 158.67Å
α: 90° β: 90° γ: 120°
R-values:
R R work R free
0.18 0.18 0.29
Expression system: Escherichia coli