4BMJ

Structure of the UBZ1and2 tandem of the ubiquitin-binding adaptor protein TAX1BP1


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.75 Å
  • R-Value Free: 0.255 
  • R-Value Work: 0.215 

wwPDB Validation 3D Report Full Report


This is version 1.3 of the entry. See complete history

Literature

The Structure of Tax1BP1 Ubz1 + 2 Provides Insight Into Target Specificity and Adaptability

Ceregido, M.A.Spinola-Amilibia, M.Buts, L.Rivera-Torres, J.Garcia-Pino, A.Bravo, J.Van Nuland, N.A.J.

(2014) J.Mol.Biol. 426: 674

  • DOI: 10.1016/j.jmb.2013.11.006
  • Primary Citation of Related Structures:  

  • PubMed Abstract: 
  • TAX1BP1 is a novel ubiquitin-binding adaptor protein involved in the negative regulation of the NF-kappaB transcription factor, which is a key player in inflammatory responses, immunity and tumorigenesis. TAX1BP1 recruits A20 to the ubiquitinated sig ...

    TAX1BP1 is a novel ubiquitin-binding adaptor protein involved in the negative regulation of the NF-kappaB transcription factor, which is a key player in inflammatory responses, immunity and tumorigenesis. TAX1BP1 recruits A20 to the ubiquitinated signaling proteins TRAF6 and RIP1, leading to their A20-mediated deubiquitination and the disruption of IL-1-induced and TNF-induced NF-kappaB signaling, respectively. The two zinc fingers localized at its C-terminus function as novel ubiquitin-binding domains (UBZ, ubiquitin-binding zinc finger). Here we present for the first time both the solution and crystal structures of two classical UBZ domains in tandem within the human TAX1BP1. The relative orientation of the two domains is slightly different in the X-ray structure with respect to the NMR structure, indicating some degree of conformational flexibility, which is rationalized by NMR relaxation data. The observed degree of flexibility and stability between the two UBZ domains might have consequences on the recognition mechanism of interacting partners.


    Organizational Affiliation

    Departamento de Química Física e Instituto de Biotecnología, Facultad de Ciencias, Universidad de Granada, Granada 18071, Spain; Jean Jeener NMR Centre, Structural Biology Brussels, Vrije Universiteit Brussel, Brussels 1050, Belgium; Molecular Recognition Unit, Department of Structural Biology, VIB, Brussels 1050, Belgium.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
TAX1-BINDING PROTEIN 1
A, B, C, D, E, F, G, H, I, J, K
69Homo sapiensMutation(s): 0 
Gene Names: TAX1BP1 (T6BP)
Find proteins for Q86VP1 (Homo sapiens)
Go to Gene View: TAX1BP1
Go to UniProtKB:  Q86VP1
Small Molecules
Ligands 2 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
ZN
Query on ZN

Download SDF File 
Download CCD File 
A, B, C, D, E, F, G, H, I, J, K
ZINC ION
Zn
PTFCDOFLOPIGGS-UHFFFAOYSA-N
 Ligand Interaction
CL
Query on CL

Download SDF File 
Download CCD File 
A, B, C, D, E, F, G, H, I, J, K
CHLORIDE ION
Cl
VEXZGXHMUGYJMC-UHFFFAOYSA-M
 Ligand Interaction
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.75 Å
  • R-Value Free: 0.255 
  • R-Value Work: 0.215 
  • Space Group: P 65 2 2
Unit Cell:
Length (Å)Angle (°)
a = 118.878α = 90.00
b = 118.878β = 90.00
c = 327.345γ = 120.00
Software Package:
Software NamePurpose
REFMACrefinement
autoSHARPphasing
SCALAdata scaling
MOSFLMdata reduction

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2013-11-20
    Type: Initial release
  • Version 1.1: 2013-11-27
    Type: Database references
  • Version 1.2: 2014-02-05
    Type: Database references
  • Version 1.3: 2017-08-09
    Type: Data collection, Refinement description