4ONM

Crystal structure of human Mms2/Ubc13 - NSC697923


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.35 Å
  • R-Value Free: 0.192 
  • R-Value Work: 0.159 
  • R-Value Observed: 0.161 

wwPDB Validation 3D Report Full Report


This is version 1.2 of the entry. See complete history


Literature

Covalent Inhibition of Ubc13 Affects Ubiquitin Signaling and Reveals Active Site Elements Important for Targeting.

Hodge, C.D.Edwards, R.A.Markin, C.J.McDonald, D.Pulvino, M.Huen, M.S.Zhao, J.Spyracopoulos, L.Hendzel, M.J.Glover, J.N.

(2015) ACS Chem Biol 10: 1718-1728

  • DOI: 10.1021/acschembio.5b00222
  • Structures With Same Primary Citation

  • PubMed Abstract: 
  • Ubc13 is an E2 ubiquitin conjugating enzyme that functions in nuclear DNA damage signaling and cytoplasmic NF-κB signaling. Here, we present the structures of complexes of Ubc13 with two inhibitors, NSC697923 and BAY 11-7082, which inhibit DNA damage ...

    Ubc13 is an E2 ubiquitin conjugating enzyme that functions in nuclear DNA damage signaling and cytoplasmic NF-κB signaling. Here, we present the structures of complexes of Ubc13 with two inhibitors, NSC697923 and BAY 11-7082, which inhibit DNA damage and NF-κB signaling in human cells. NSC697923 and BAY 11-7082 both inhibit Ubc13 by covalent adduct formation through a Michael addition at the Ubc13 active site cysteine. The resulting adducts of both compounds exploit a binding groove unique to Ubc13. We developed a Ubc13 mutant which resists NSC697923 inhibition and, using this mutant, we show that the inhibition of cellular DNA damage and NF-κB signaling by NSC697923 is largely due to specific Ubc13 inhibition. We propose that unique structural features near the Ubc13 active site could provide a basis for the rational development and design of specific Ubc13 inhibitors.


    Organizational Affiliation

    †Department of Biochemistry, University of Alberta, Edmonton, Alberta, Canada T6G 2H7.



Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
Ubiquitin-conjugating enzyme E2 variant 2
A
153Homo sapiensMutation(s): 0 
Gene Names: MMS2UBE2V2UEV2
Find proteins for Q15819 (Homo sapiens)
Go to UniProtKB:  Q15819
NIH Common Fund Data Resources
PHAROS  Q15819
Protein Feature View
  • Reference Sequence

Find similar proteins by: Sequence  |  Structure

Entity ID: 2
MoleculeChainsSequence LengthOrganismDetails
Ubiquitin-conjugating enzyme E2 N
B
160Homo sapiensMutation(s): 0 
Gene Names: BLUUBE2N
EC: 6.3.2.19 (PDB Primary Data), 2.3.2.23 (UniProt)
Find proteins for P61088 (Homo sapiens)
Go to UniProtKB:  P61088
NIH Common Fund Data Resources
PHAROS  P61088
Protein Feature View
  • Reference Sequence
Small Molecules
Ligands 2 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
N2F
Query on N2F

Download CCD File 
B
2-[(4-methylphenyl)sulfonyl]-5-nitrofuran
C11 H9 N O5 S
GAUHIPWCDXOLCZ-UHFFFAOYSA-N
 Ligand Interaction
GOL
Query on GOL

Download CCD File 
A
GLYCEROL
C3 H8 O3
PEDCQBHIVMGVHV-UHFFFAOYSA-N
 Ligand Interaction
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.35 Å
  • R-Value Free: 0.192 
  • R-Value Work: 0.159 
  • R-Value Observed: 0.161 
  • Space Group: P 21 21 21
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 44.538α = 90
b = 74.855β = 90
c = 91.325γ = 90
Software Package:
Software NamePurpose
DENZOdata reduction
SCALEPACKdata scaling
PHENIXrefinement
PDB_EXTRACTdata extraction

Structure Validation

View Full Validation Report



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2015-05-06
    Type: Initial release
  • Version 1.1: 2015-08-05
    Changes: Database references
  • Version 1.2: 2017-11-22
    Changes: Advisory, Refinement description