› 3iv3

X-ray diffraction
1.8Å resolution

The Structure of a putative tagatose 1,6-aldolase from Streptococcus mutans

Released:
DOI: 10.2210/pdb3iv3/pdb
PDB entry 3iv3 coloured by chain, front view.
PDB entry 3iv3 coloured by chain, side view.
PDB entry 3iv3 coloured by chain, top view.
Source organism: Streptococcus mutans
Entry authors: Cuff ME, Hatzos C, Jedrzejczak R, Joachimiak A, Midwest Center for Structural Genomics (MCSG)

Function and Biology Details

Reaction catalysed: 
D-tagatose 1,6-bisphosphate = glycerone phosphate + D-glyceraldehyde 3-phosphate
Biochemical function:
Biological process:
Cellular component:
  • not assigned
Sequence domains:

Structure analysis Details

Assembly composition:
homo dimer (preferred)
Assembly name:
PDBe Complex ID:
PDB-CPX-184259 (preferred)
Entry contents:
1 distinct polypeptide molecule
Macromolecule:
Tagatose 1,6-diphosphate aldolase 2 Chain: A
Molecule details ›
Chain: A
Length: 332 amino acids
Theoretical weight: 37.19 KDa
Source organism: Streptococcus mutans
Expression system: Escherichia coli BL21
UniProt:
  • Canonical: Q8DWE5 (Residues: 1-329; Coverage: 100%)
Gene names: SMU_116, lacD2
Sequence domains: DeoC/LacD family aldolase
Structure domains: Aldolase class I

Ligands and Environments

3 bound ligands:
Ligand PO4 1 x PO4
Ligand EDO 8 x EDO
Ligand K 2 x K
1 modified residue:
Ligand MSE 7 x MSE

Experiments and Validation Details

Entry percentile scores
X-ray source: APS BEAMLINE 19-ID
Spacegroup: C2221
Unit cell:
a: 104.214Å b: 113.759Å c: 74.399Å
α: 90° β: 90° γ: 90°
R-values:
R R work R free
0.154 0.153 0.176
Expression system: Escherichia coli BL21

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