3IOI

Crystal structure of the Fucosylgalactoside alpha N-acetylgalactosaminyltransferase (GTA, cisAB mutant L266G, G268A) in complex with a novel UDP-Gal derived inhibitor (1GW)


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.45 Å
  • R-Value Free: 0.175 
  • R-Value Work: 0.159 
  • R-Value Observed: 0.160 

wwPDB Validation 3D Report Full Report


This is version 1.3 of the entry. See complete history


Literature

Structural and mechanistic basis for a new mode of glycosyltransferase inhibition.

Pesnot, T.Jorgensen, R.Palcic, M.M.Wagner, G.K.

(2010) Nat Chem Biol 6: 321-323

  • DOI: 10.1038/nchembio.343
  • Primary Citation of Related Structures:  
    3IOI, 3IOJ, 3IOH

  • PubMed Abstract: 
  • Glycosyltransferases are carbohydrate-active enzymes with essential roles in numerous important biological processes. We have developed a new donor analog for galactosyltransferases that locks a representative target enzyme in a catalytically inactiv ...

    Glycosyltransferases are carbohydrate-active enzymes with essential roles in numerous important biological processes. We have developed a new donor analog for galactosyltransferases that locks a representative target enzyme in a catalytically inactive conformation, thus almost completely abolishing sugar transfer. Results with other galactosyltransferases suggest that this unique mode of glycosyltransferase inhibition may also be generally applicable to other members of this important enzyme family.


    Organizational Affiliation

    School of Pharmacy, University of East Anglia, Norwich, UK.



Macromolecules
Find similar proteins by:  (by identity cutoff)  |  Structure
Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
Histo-blood group ABO system transferaseA298Homo sapiensMutation(s): 2 
Gene Names: ABO
EC: 2.4.1.40 (PDB Primary Data), 2.4.1.37 (PDB Primary Data)
Find proteins for P16442 (Homo sapiens)
Explore P16442 
Go to UniProtKB:  P16442
NIH Common Fund Data Resources
PHAROS  P16442
Protein Feature View
 ( Mouse scroll to zoom / Hold left click to move )
  • Reference Sequence
Small Molecules
Ligands 3 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
1GW
Query on 1GW

Download CCD File 
A
5-(2-FORMYLTHIEN-5-YL)-URIDINE-5'-DIPHOSPHATE-ALPHA-D-GALACTOSE
C20 H26 N2 O18 P2 S
KKHANSZRQMPJKN-PCGMDOMSSA-N
 Ligand Interaction
SO4
Query on SO4

Download CCD File 
A
SULFATE ION
O4 S
QAOWNCQODCNURD-UHFFFAOYSA-L
 Ligand Interaction
MN
Query on MN

Download CCD File 
A
MANGANESE (II) ION
Mn
WAEMQWOKJMHJLA-UHFFFAOYSA-N
 Ligand Interaction
External Ligand Annotations 
IDBinding Affinity (Sequence Identity %)
1GWKi :  530   nM  PDBBind
1GWKi:  530   nM  Binding MOAD
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.45 Å
  • R-Value Free: 0.175 
  • R-Value Work: 0.159 
  • R-Value Observed: 0.160 
  • Space Group: C 2 2 21
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 52.16α = 90
b = 148.44β = 90
c = 79γ = 90
Software Package:
Software NamePurpose
XSCALEdata scaling
PHASERphasing
PHENIXrefinement
PDB_EXTRACTdata extraction
MAR345dtbdata collection
XDSdata reduction

Structure Validation

View Full Validation Report



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2010-04-07
    Type: Initial release
  • Version 1.1: 2011-07-13
    Changes: Version format compliance
  • Version 1.2: 2014-11-12
    Changes: Structure summary
  • Version 1.3: 2017-09-27
    Changes: Data collection