3VSR

Microbacterium saccharophilum K-1 beta-fructofuranosidase catalytic domain


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2 Å
  • R-Value Free: 0.241 
  • R-Value Work: 0.193 

wwPDB Validation 3D Report Full Report


This is version 1.3 of the entry. See complete history

Literature

Crystal structure of a lactosucrose-producing enzyme, Arthrobacter sp. K-1 beta-fructofuranosidase

Tonozuka, T.Tamaki, A.Yokoi, G.Miyazaki, T.Ichikawa, M.Nishikawa, A.Ohta, Y.Hidaka, Y.Katayama, K.Hatada, Y.Ito, T.Fujita, K.

(2012) Enzyme.Microb.Technol. 51: 359-365

  • DOI: 10.1016/j.enzmictec.2012.08.004
  • Primary Citation of Related Structures:  

  • PubMed Abstract: 
  • Arthrobacter sp. K-1 β-fructofuranosidase (ArFFase), a glycoside hydrolase family 68 enzyme, catalyzes the hydrolysis and transfructosylation of sucrose. ArFFase is useful for producing a sweetener, lactosucrose (4(G)-β-D-galactosylsucrose). The prim ...

    Arthrobacter sp. K-1 β-fructofuranosidase (ArFFase), a glycoside hydrolase family 68 enzyme, catalyzes the hydrolysis and transfructosylation of sucrose. ArFFase is useful for producing a sweetener, lactosucrose (4(G)-β-D-galactosylsucrose). The primary structure of ArFFase is homologous to those of levansucrases, although ArFFase catalyzes mostly hydrolysis when incubated with sucrose alone, even at high concentration. Here, we determined the crystal structure of ArFFase in unliganded form and complexed with fructose. ArFFase consisted of a five-bladed β-propeller fold as observed in levansucrases. The structure of ArFFase was most similar to that of Gluconacetobacter diazotrophicus levansucrase (GdLev). The structure of the catalytic cleft of ArFFase was also highly homologous to that of GdLev. However, two amino acid residues, Tyr232 and Pro442 in ArFFase, were not conserved between them. A tunnel observed at the bottom of the catalytic cleft of ArFFase may serve as a water drain or its reservoir.


    Organizational Affiliation

    Department of Applied Biological Science, Tokyo University of Agriculture and Technology, 3-5-8 Saiwai-cho, Fuchu, Tokyo 186-0001, Japan. tonozuka@cc.tuat.ac.jp




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
Beta-fructofuranosidase
A
496Microbacterium saccharophilumMutation(s): 0 
Gene Names: bff
Find proteins for Q8VW87 (Microbacterium saccharophilum)
Go to UniProtKB:  Q8VW87
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2 Å
  • R-Value Free: 0.241 
  • R-Value Work: 0.193 
  • Space Group: P 1 21 1
Unit Cell:
Length (Å)Angle (°)
a = 57.723α = 90.00
b = 72.391β = 95.23
c = 58.709γ = 90.00
Software Package:
Software NamePurpose
HKL-2000data reduction
ADSCdata collection
HKL-2000data scaling
REFMACrefinement
MOLREPphasing

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2012-08-22
    Type: Initial release
  • Version 1.1: 2012-10-17
    Type: Database references
  • Version 1.2: 2012-10-31
    Type: Database references
  • Version 1.3: 2014-03-12
    Type: Structure summary