PDBe 3sdb

X-ray diffraction
2Å resolution

Crystal structure of C176A mutant of glutamine-dependent NAD+ synthetase from M. tuberculosis in apo form


Function and Biology Details

Reaction catalysed:
ATP + deamido-NAD(+) + L-glutamine + H(2)O = AMP + diphosphate + NAD(+) + L-glutamate
Biochemical function:
Biological process:
Cellular component:

Structure analysis Details

Assembly composition:
homo octamer (preferred)
Entry contents:
1 distinct polypeptide molecule
Glutamine-dependent NAD(+) synthetase Chain: A
Molecule details ›
Chain: A
Length: 680 amino acids
Theoretical weight: 74.82 KDa
Source organism: Mycobacterium tuberculosis
Expression system: Escherichia coli BL21(DE3)
  • Canonical: P9WJJ3 (Residues: 1-679; Coverage: 100%)
Gene names: MTCY428.08, Rv2438c, nadE
Sequence domains:
Structure domains:

Ligands and Environments

No bound ligands

No modified residues

Experiments and Validation Details

Entry percentile scores
X-ray source: APS BEAMLINE 24-ID-C
Spacegroup: I422
Unit cell:
a: 179.937Å b: 179.937Å c: 98.716Å
α: 90° β: 90° γ: 90°
R R work R free
0.164 0.163 0.196
Expression system: Escherichia coli BL21(DE3)