5IAA

Crystal structure of human UBA5 in complex with UFM1


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.85 Å
  • R-Value Free: 0.206 
  • R-Value Work: 0.187 

wwPDB Validation 3D Report Full Report


This is version 1.1 of the entry. See complete history

Literature

Trans-Binding Mechanism of Ubiquitin-like Protein Activation Revealed by a UBA5-UFM1 Complex.

Oweis, W.Padala, P.Hassouna, F.Cohen-Kfir, E.Gibbs, D.R.Todd, E.A.Berndsen, C.E.Wiener, R.

(2016) Cell Rep 16: 3113-3120

  • DOI: 10.1016/j.celrep.2016.08.067
  • Primary Citation of Related Structures:  

  • PubMed Abstract: 
  • Modification of proteins by ubiquitin or ubiquitin-like proteins (UBLs) is a critical cellular process implicated in a variety of cellular states and outcomes. A prerequisite for target protein modification by a UBL is the activation of the latter by ...

    Modification of proteins by ubiquitin or ubiquitin-like proteins (UBLs) is a critical cellular process implicated in a variety of cellular states and outcomes. A prerequisite for target protein modification by a UBL is the activation of the latter by activating enzymes (E1s). Here, we present the crystal structure of the non-canonical homodimeric E1, UBA5, in complex with its cognate UBL, UFM1, and supporting biochemical experiments. We find that UBA5 binds to UFM1 via a trans-binding mechanism in which UFM1 interacts with distinct sites in both subunits of the UBA5 dimer. This binding mechanism requires a region C-terminal to the adenylation domain that brings UFM1 to the active site of the adjacent UBA5 subunit. We also find that transfer of UFM1 from UBA5 to the E2, UFC1, occurs via a trans mechanism, thereby requiring a homodimer of UBA5. These findings explicitly elucidate the role of UBA5 dimerization in UFM1 activation.


    Organizational Affiliation

    Department of Biochemistry and Molecular Biology, Institute for Medical Research Israel-Canada, Hebrew University-Hadassah Medical School, Jerusalem 91120, Israel.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
Ubiquitin-like modifier-activating enzyme 5
A, B
290Homo sapiensMutation(s): 0 
Gene Names: UBA5 (UBE1DC1)
Find proteins for Q9GZZ9 (Homo sapiens)
Go to Gene View: UBA5
Go to UniProtKB:  Q9GZZ9
Entity ID: 2
MoleculeChainsSequence LengthOrganismDetails
Ubiquitin-fold modifier 1
C, D
83Homo sapiensMutation(s): 0 
Gene Names: UFM1 (C13orf20)
Find proteins for P61960 (Homo sapiens)
Go to Gene View: UFM1
Go to UniProtKB:  P61960
Small Molecules
Ligands 1 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
ZN
Query on ZN

Download SDF File 
Download CCD File 
A, B
ZINC ION
Zn
PTFCDOFLOPIGGS-UHFFFAOYSA-N
 Ligand Interaction
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.85 Å
  • R-Value Free: 0.206 
  • R-Value Work: 0.187 
  • Space Group: P 32 2 1
Unit Cell:
Length (Å)Angle (°)
a = 138.081α = 90.00
b = 138.081β = 90.00
c = 99.178γ = 120.00
Software Package:
Software NamePurpose
PHASERphasing
REFMACrefinement
iMOSFLMdata reduction
SCALAdata scaling

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History & Funding Information

Deposition Data


Funding OrganizationLocationGrant Number
BSFIsrael--

Revision History 

  • Version 1.0: 2016-09-28
    Type: Initial release
  • Version 1.1: 2016-10-05
    Type: Database references