CpOGA D298N in complex with Drosophila HCF -derived Thr-O-GlcNAc peptide

Experimental Data Snapshot

  • Resolution: 2.60 Å
  • R-Value Free: 0.220 
  • R-Value Work: 0.171 
  • R-Value Observed: 0.172 

Starting Model: experimental
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Ligand Structure Quality Assessment 

This is version 1.2 of the entry. See complete history


A mutant O-GlcNAcase as a probe to reveal global dynamics of protein O-GlcNAcylation during Drosophila embryonic development.

Mariappa, D.Selvan, N.Borodkin, V.S.Alonso, J.Ferenbach, A.T.Shepherd, C.Navratilova, I.H.van Aalten, D.M.

(2015) Biochem J 470: 255-262

  • DOI: https://doi.org/10.1042/BJ20150610
  • Primary Citation of Related Structures:  

  • PubMed Abstract: 

    O-GlcNAcylation is a reversible type of serine/threonine glycosylation on nucleocytoplasmic proteins in metazoa. Various genetic approaches in several animal models have revealed that O-GlcNAcylation is essential for embryogenesis. However, the dynamic changes in global O-GlcNAcylation and the underlying mechanistic biology linking them to embryonic development is not understood. One of the limiting factors towards characterizing changes in O-GlcNAcylation has been the limited specificity of currently available tools to detect this modification. In the present study, harnessing the unusual properties of an O-GlcNAcase (OGA) mutant that binds O-GlcNAc (O-N-acetylglucosamine) sites with nanomolar affinity, we uncover changes in protein O-GlcNAcylation as a function of Drosophila development.

  • Organizational Affiliation

    MRC Protein Phosphorylation and Ubiquitylation Unit, College of Life Sciences, University of Dundee, Dow Street, Dundee, DD1 5EH, United Kingdom.


Find similar proteins by:  Sequence   |   3D Structure  

Entity ID: 1
MoleculeChains Sequence LengthOrganismDetailsImage
NAG-PRO-SER-THR-ALA-Thr-O-GlcNAc containing peptide from drosophila HCFA [auth H]4Drosophila melanogasterMutation(s): 0 
Glycosylation Sites: 1
Sequence Annotations
  • Reference Sequence
Find similar proteins by:  (by identity cutoff)  |  3D Structure
Entity ID: 2
MoleculeChains Sequence LengthOrganismDetailsImage
O-GlcNAcase NagJB [auth A]579Clostridium perfringens ATCC 13124Mutation(s): 1 
Gene Names: nagJCPF_1442
EC: (PDB Primary Data), (PDB Primary Data)
Find proteins for Q0TR53 (Clostridium perfringens (strain ATCC 13124 / DSM 756 / JCM 1290 / NCIMB 6125 / NCTC 8237 / Type A))
Explore Q0TR53 
Go to UniProtKB:  Q0TR53
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupQ0TR53
Sequence Annotations
  • Reference Sequence
Small Molecules
Ligands 2 Unique
IDChains Name / Formula / InChI Key2D Diagram3D Interactions
Query on NAG

Download Ideal Coordinates CCD File 
C [auth H]2-acetamido-2-deoxy-beta-D-glucopyranose
C8 H15 N O6
Query on CD

Download Ideal Coordinates CCD File 
D [auth A]
E [auth A]
F [auth A]
G [auth A]
H [auth A]
D [auth A],
E [auth A],
F [auth A],
G [auth A],
H [auth A],
I [auth A],
J [auth A],
K [auth A],
L [auth A],
M [auth A],
N [auth A],
O [auth A],
P [auth A],
Q [auth A],
R [auth A]
Experimental Data & Validation

Experimental Data

  • Resolution: 2.60 Å
  • R-Value Free: 0.220 
  • R-Value Work: 0.171 
  • R-Value Observed: 0.172 
  • Space Group: P 61
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 118.56α = 90
b = 118.56β = 90
c = 148.441γ = 120
Software Package:
Software NamePurpose
XDSdata reduction
SCALAdata scaling

Structure Validation

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Ligand Structure Quality Assessment 

Entry History & Funding Information

Deposition Data

Funding OrganizationLocationGrant Number
Wellcome TrustUnited KingdomWT087590MA

Revision History  (Full details and data files)

  • Version 1.0: 2015-09-23
    Type: Initial release
  • Version 1.1: 2020-07-29
    Type: Remediation
    Reason: Carbohydrate remediation
    Changes: Data collection, Derived calculations, Structure summary
  • Version 1.2: 2024-01-10
    Changes: Data collection, Database references, Refinement description, Structure summary