PDBe 3b8v

X-ray diffraction
2.6Å resolution

Crystal structure of Escherichia coli alaine racemase mutant E221K


Function and Biology Details

Structure analysis Details

Assembly composition:
homo dimer (preferred)
Entry contents:
1 distinct polypeptide molecule
Alanine racemase, biosynthetic Chains: A, B, C, D
Molecule details ›
Chains: A, B, C, D
Length: 379 amino acids
Theoretical weight: 41.42 KDa
Source organism: Escherichia coli K-12
Expression system: Escherichia coli BL21(DE3)
  • Canonical: P0A6B4 (Residues: 1-359; Coverage: 100%)
Gene names: JW4013, alr, b4053
Sequence domains:
Structure domains:

Ligands and Environments

2 bound ligands:

1 modified residue:

Experiments and Validation Details

Entry percentile scores
X-ray source: RIGAKU
Spacegroup: P6
Unit cell:
a: 148.181Å b: 148.181Å c: 163.689Å
α: 90° β: 90° γ: 120°
R R work R free
0.227 0.227 0.237
Expression system: Escherichia coli BL21(DE3)