1gtd

X-ray diffraction
2.56Å resolution

NORTHEAST STRUCTURAL GENOMICS CONSORTIUM (NESG ID TT50) STRUCTURE OF MTH169, THE PURS SUBUNIT OF FGAM SYNTHETASE

Released:

Function and Biology Details

Reaction catalysed:
ATP + N(2)-formyl-N(1)-(5-phospho-D-ribosyl)glycinamide + L-glutamine + H(2)O = ADP + phosphate + 2-(formamido)-N(1)-(5-phospho-D-ribosyl)acetamidine + L-glutamate
Biochemical function:
Cellular component:

Structure analysis Details

Assembly composition:
homo tetramer (preferred)
PDBe Complex ID:
PDB-CPX-127829 (preferred)
Entry contents:
1 distinct polypeptide molecule
Macromolecule:
Phosphoribosylformylglycinamidine synthase subunit PurS Chains: A, B
Molecule details ›
Chains: A, B
Length: 85 amino acids
Theoretical weight: 10.06 KDa
Source organism: Methanothermobacter thermautotrophicus
Expression system: Escherichia coli BL21(DE3)
UniProt:
  • Canonical: O26271 (Residues: 1-82; Coverage: 98%)
Gene names: MTH_169, purS
Sequence domains: Phosphoribosylformylglycinamidine (FGAM) synthase
Structure domains: Phosphoribosylformylglycinamidine synthase subunit PurS

Ligands and Environments

No bound ligands
1 modified residue:

Experiments and Validation Details

Entry percentile scores
X-ray source: APS BEAMLINE 19-ID
Spacegroup: P4322
Unit cell:
a: 53.8Å b: 53.8Å c: 142.7Å
α: 90° β: 90° γ: 90°
R-values:
R R work R free
0.235 0.235 0.278
Expression system: Escherichia coli BL21(DE3)