2inu

X-ray diffraction
1.8Å resolution

Crystal structure of Inulin fructotransferase in the absence of substrate

Released:

Function and Biology Details

Reaction catalysed:
Produces alpha-D-fructofuranose beta-D-fructofuranose 1,2':2,3'-dianhydride (DFA III) by successively eliminating the diminishing (2->1)-beta-D-fructan (inulin) chain from the terminal D-fructosyl-D-fructosyl disaccharide.
Biochemical function:
Biological process:
  • not assigned
Cellular component:
  • not assigned

Structure analysis Details

Assembly composition:
homo trimer (preferred)
PDBe Complex ID:
PDB-CPX-174778 (preferred)
Entry contents:
1 distinct polypeptide molecule
Macromolecule:
Inulin fructotransferase Chains: A, B, C
Molecule details ›
Chains: A, B, C
Length: 410 amino acids
Theoretical weight: 43.6 KDa
Source organism: Bacillus sp. snu-7
Expression system: Escherichia coli
UniProt:
  • Canonical: Q3SAG3 (Residues: 41-450; Coverage: 100%)
Gene name: ift
Sequence domains: Beta helix repeat of Inulin fructotransferase
Structure domains: Single-stranded right-handed beta-helix, Pectin lyase-like

Ligands and Environments

1 bound ligand:
1 modified residue:

Experiments and Validation Details

Entry percentile scores
X-ray source: PAL/PLS BEAMLINE 6B
Spacegroup: C2
Unit cell:
a: 159.138Å b: 91.907Å c: 93.022Å
α: 90° β: 124.75° γ: 90°
R-values:
R R work R free
0.198 0.198 0.226
Expression system: Escherichia coli