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 
  • R-Value Work: 0.197 
  • R-Value Observed: 0.197 

Starting Model: experimental
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wwPDB Validation   3D Report Full Report


Ligand Structure Quality Assessment 


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
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  • 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]
AA [auth C],
BA [auth C],
CA [auth C],
DA [auth D],
EA [auth D],
FA [auth D],
GA [auth D],
HA [auth D],
I [auth A],
IA [auth D],
J [auth A],
JA [auth D],
K [auth A],
L [auth A],
LA [auth E],
M [auth A],
N [auth A],
NA [auth F],
O [auth A],
P [auth A],
Q [auth B],
QA [auth H],
R [auth B],
S [auth B],
T [auth B],
U [auth B],
V [auth B],
W [auth B],
X [auth C],
Y [auth C],
Z [auth C]
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
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 3.15 Å
  • R-Value Free: 0.213 
  • R-Value Work: 0.197 
  • R-Value Observed: 0.197 
  • 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

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Ligand Structure Quality Assessment 


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