4CDR

Human O-GlcNAc transferase in complex with a bisubstrate inhibitor, Goblin1


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 3.15 Å
  • R-Value Free: 
    0.213 (Depositor), 0.210 (DCC) 
  • R-Value Work: 
    0.197 (Depositor), 0.190 (DCC) 
  • R-Value Observed: 
    0.197 (Depositor) 

Starting Model: experimental
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wwPDB Validation   3D Report Full Report


Ligand Structure Quality Assessment 

Created with Raphaël 2.3.0Worse 01 BetterLigand structure goodness of fit to experimental dataBest fitted UDPClick on this verticalbar to view details

This is version 1.4 of the entry. See complete history


Literature

Bisubstrate Udp-Peptide Conjugates as Human O-Glcnac Transferase Inhibitors.

Borodkin, V.S.Schimpl, M.Gundogdu, M.Rafie, K.Dorfmueller, H.C.Robinson, D.A.Van Aalten, D.M.

(2014) Biochem J 457: 497

  • DOI: https://doi.org/10.1042/BJ20131272
  • Primary Citation of Related Structures:  
    4CDR

  • PubMed Abstract: 

    Inhibitors of OGT (O-GlcNAc transferase) are valuable tools to study the cell biology of protein O-GlcNAcylation. We report OGT bisubstrate-linked inhibitors (goblins) in which the acceptor serine in the peptide VTPVSTA is covalently linked to UDP, eliminating the GlcNAc pyranoside ring. Goblin1 co-crystallizes with OGT, revealing an ordered C₃ linker and retained substrate-binding modes, and binds the enzyme with micromolar affinity, inhibiting glycosyltransfer on to protein and peptide substrates.


  • Organizational Affiliation

    *MRC Protein Phosphorylation und Ubiquitylation Unit, College of Life Sciences, University of Dundee, Dow Street, Dundee DD1 5EH, U.K.


Macromolecules
Find similar proteins by:  (by identity cutoff)  |  3D Structure
Entity ID: 1
MoleculeChains Sequence LengthOrganismDetailsImage
UDP-N-ACETYLGLUCOSAMINE--PEPTIDE N-ACETYLGLUCOSAMINYLTRANSFERASE 110 KDA SUBUNIT
A, B, C, D
723Homo sapiensMutation(s): 0 
EC: 2.4.1.255
UniProt & NIH Common Fund Data Resources
Find proteins for O15294 (Homo sapiens)
Explore O15294 
Go to UniProtKB:  O15294
PHAROS:  O15294
GTEx:  ENSG00000147162 
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupO15294
Sequence Annotations
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  • Reference Sequence

Find similar proteins by:  Sequence   |   3D Structure  

Entity ID: 2
MoleculeChains Sequence LengthOrganismDetailsImage
GOBLIN1
E, F, G, H
9synthetic constructMutation(s): 0 
Sequence Annotations
Expand
  • Reference Sequence
Small Molecules
Ligands 2 Unique
IDChains Name / Formula / InChI Key2D Diagram3D Interactions
UDP
Query on UDP

Download Ideal Coordinates CCD File 
KA [auth E],
MA [auth F],
OA [auth G],
PA [auth H]
URIDINE-5'-DIPHOSPHATE
C9 H14 N2 O12 P2
XCCTYIAWTASOJW-XVFCMESISA-N
SO4
Query on SO4

Download Ideal Coordinates CCD File 
AA [auth C]
BA [auth C]
CA [auth C]
DA [auth D]
EA [auth D]
SULFATE ION
O4 S
QAOWNCQODCNURD-UHFFFAOYSA-L
Modified Residues  1 Unique
IDChains TypeFormula2D DiagramParent
SRZ
Query on SRZ
E, F, G, H
L-PEPTIDE LINKINGC6 H13 N O4SER
Binding Affinity Annotations 
IDSourceBinding Affinity
UDP BindingDB:  4CDR IC50: 1800 (nM) from 1 assay(s)
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 3.15 Å
  • R-Value Free:  0.213 (Depositor), 0.210 (DCC) 
  • R-Value Work:  0.197 (Depositor), 0.190 (DCC) 
  • R-Value Observed: 0.197 (Depositor) 
Space Group: P 3 2 1
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 273.728α = 90
b = 273.728β = 90
c = 142.581γ = 120
Software Package:
Software NamePurpose
REFMACrefinement
xia2data reduction
SCALAdata scaling
REFMACphasing

Structure Validation

View Full Validation Report



Ligand Structure Quality Assessment 

Created with Raphaël 2.3.0Worse 01 BetterLigand structure goodness of fit to experimental dataBest fitted UDPClick on this verticalbar to view details

Entry History 

Deposition Data

Revision History  (Full details and data files)

  • Version 1.0: 2013-12-04
    Type: Initial release
  • Version 1.1: 2014-01-29
    Changes: Database references
  • Version 1.2: 2016-12-14
    Changes: Source and taxonomy
  • Version 1.3: 2023-12-20
    Changes: Data collection, Database references, Derived calculations, Other, Refinement description
  • Version 1.4: 2024-10-16
    Changes: Structure summary