› 3ik4

X-ray diffraction
2.1Å resolution

CRYSTAL STRUCTURE OF mandelate racemase/muconate lactonizing protein from Herpetosiphon aurantiacus

Released:
DOI: 10.2210/pdb3ik4/pdb
PDB entry 3ik4 coloured by chain, front view.
PDB entry 3ik4 coloured by chain, side view.
PDB entry 3ik4 coloured by chain, top view.
Source organism: Herpetosiphon aurantiacus DSM 785
Primary publication:
Homology models guide discovery of diverse enzyme specificities among dipeptide epimerases in the enolase superfamily.
Lukk T, Sakai A, Kalyanaraman C, Brown SD, Imker HJ, Song L, Fedorov AA, Fedorov EV, Toro R, Hillerich B, Seidel R, Patskovsky Y, Vetting MW, Nair SK, Babbitt PC, Almo SC, Gerlt JA, Jacobson MP
Proc Natl Acad Sci U S A 109 4122-7 (2012)
PMID: 22392983

Function and Biology Details

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

Structure analysis Details

Assemblies composition:
monomeric (preferred)
homo dimer
Assembly name:
PDBe Complex ID:
PDB-CPX-108829 (preferred)
Entry contents:
1 distinct polypeptide molecule
Macromolecule:
Aromatic dipeptide epimerase Chains: A, B, C, D
Molecule details ›
Chains: A, B, C, D
Length: 365 amino acids
Theoretical weight: 37.96 KDa
Source organism: Herpetosiphon aurantiacus DSM 785
Expression system: Escherichia coli
UniProt:
  • Canonical: A9B055 (Residues: 2-355; Coverage: 99%)
Gene name: Haur_1114
Sequence domains:
Structure domains:

Ligands and Environments

2 bound ligands:
Ligand K 4 x K
Ligand GOL 2 x GOL
No modified residues

Experiments and Validation Details

Entry percentile scores
X-ray source: NSLS BEAMLINE X29A
Spacegroup: P21
Unit cell:
a: 84.026Å b: 93.344Å c: 85.914Å
α: 90° β: 112.6° γ: 90°
R-values:
R R work R free
0.219 0.217 0.275
Expression system: Escherichia coli

Quick links

Citations

8 review citations

Bacterial cell-wall recycling.
Johnson et al. (2013)
7 more

1 mention without citation

Homology models guide discovery of diverse enzyme specificities among dipeptide epimerases in the enolase superfamily.
Lukk et al. (2012)