5OE7

Structure of OTULIN bound to the Met1-linked diubiquitin activity probe


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.95 Å
  • R-Value Free: 0.309 
  • R-Value Work: 0.223 

wwPDB Validation 3D Report Full Report


This is version 1.1 of the entry. See complete history

Literature

A Linear Diubiquitin-Based Probe for Efficient and Selective Detection of the Deubiquitinating Enzyme OTULIN.

Weber, A.Elliott, P.R.Pinto-Fernandez, A.Bonham, S.Kessler, B.M.Komander, D.El Oualid, F.Krappmann, D.

(2017) Cell Chem Biol 24: 1299-1313.e7

  • DOI: 10.1016/j.chembiol.2017.08.006

  • PubMed Abstract: 
  • The methionine 1 (M1)-specific deubiquitinase (DUB) OTULIN acts as a negative regulator of nuclear factor κB signaling and immune homeostasis. By replacing Gly76 in distal ubiquitin (Ub) by dehydroalanine we designed the diubiquitin (diUb) activity-b ...

    The methionine 1 (M1)-specific deubiquitinase (DUB) OTULIN acts as a negative regulator of nuclear factor κB signaling and immune homeostasis. By replacing Gly76 in distal ubiquitin (Ub) by dehydroalanine we designed the diubiquitin (diUb) activity-based probe UbG76Dha-Ub (OTULIN activity-based probe [ABP]) that couples to the catalytic site of OTULIN and thereby captures OTULIN in its active conformation. The OTULIN ABP displays high selectivity for OTULIN and does not label other M1-cleaving DUBs, including CYLD. The only detectable cross-reactivities were the labeling of USP5 (Isopeptidase T) and an ATP-dependent assembly of polyOTULIN ABP chains via Ub-activating E1 enzymes. Both cross-reactivities were abolished by the removal of the C-terminal Gly in the ABP's proximal Ub, yielding the specific OTULIN probe UbG76Dha-UbΔG76 (OTULIN ABPΔG76). Pull-downs demonstrate that substrate-bound OTULIN associates with the linear ubiquitin chain assembly complex (LUBAC). Thus, we present a highly selective ABP for OTULIN that will facilitate studying the cellular function of this essential DUB.


    Organizational Affiliation

    Research Unit Cellular Signal Integration, Institute of Molecular Toxicology and Pharmacology, Helmholtz Zentrum München - German Research Center for Environmental Health, Ingolstaedter Landstrasse 1, 85764 Neuherberg, Germany.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
Ubiquitin thioesterase otulin
A
273Homo sapiensMutation(s): 0 
Gene Names: OTULIN (FAM105B)
EC: 3.4.19.12
Find proteins for Q96BN8 (Homo sapiens)
Go to Gene View: OTULIN
Go to UniProtKB:  Q96BN8
Entity ID: 2
MoleculeChainsSequence LengthOrganismDetails
Polyubiquitin-C
B
146Homo sapiensMutation(s): 0 
Gene Names: UBC
Find proteins for P0CG48 (Homo sapiens)
Go to Gene View: UBC
Go to UniProtKB:  P0CG48
Small Molecules
Modified Residues  1 Unique
IDChainsTypeFormula2D DiagramParent
DHA
Query on DHA
B
PEPTIDE LINKINGC3 H5 N O2SER
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.95 Å
  • R-Value Free: 0.309 
  • R-Value Work: 0.223 
  • Space Group: H 3 2
Unit Cell:
Length (Å)Angle (°)
a = 101.143α = 90.00
b = 101.143β = 90.00
c = 277.916γ = 120.00
Software Package:
Software NamePurpose
PHASERphasing
Aimlessdata scaling
REFMACrefinement
PDB_EXTRACTdata extraction

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History & Funding Information

Deposition Data


Funding OrganizationLocationGrant Number
Medical Research Council (United Kingdom)United Kingdom--

Revision History 

  • Version 1.0: 2017-09-27
    Type: Initial release
  • Version 1.1: 2017-11-01
    Type: Database references