PDBe 3nrd

X-ray diffraction
2.06Å resolution

Crystal structure of a histidine triad (HIT) protein (SMc02904) from SINORHIZOBIUM MELILOTI 1021 at 2.06 A resolution

Source organism: Sinorhizobium meliloti 1021
Entry author: Joint Center for Structural Genomics (JCSG)

Function and Biology Details

Biochemical function:
Biological process:
  • not assigned
Cellular component:
  • not assigned

Structure analysis Details

Assemblies composition:
homo dimer (preferred)
homo tetramer
homo octamer
Entry contents:
1 distinct polypeptide molecule
histidine triad (HIT) protein Chains: A, B, C, D
Molecule details ›
Chains: A, B, C, D
Length: 135 amino acids
Theoretical weight: 15.57 KDa
Source organism: Sinorhizobium meliloti 1021
Expression system: Escherichia coli
  • Canonical: Q92KT3 (Residues: 108-241; Coverage: 56%)
Gene name: SMc02904
Sequence domains: HIT domain
Structure domains: HIT-like

Ligands and Environments

2 bound ligands:

1 modified residue:

Experiments and Validation Details

Entry percentile scores
X-ray source: SSRL BEAMLINE BL11-1
Spacegroup: P2221
Unit cell:
a: 97.358Å b: 71.114Å c: 85.241Å
α: 90° β: 90° γ: 90°
R R work R free
0.17 0.167 0.215
Expression system: Escherichia coli