5VQ9

Structure of human TRIP13, Apo form


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 3.02 Å
  • R-Value Free: 0.238 
  • R-Value Work: 0.199 

wwPDB Validation 3D Report Full Report


This is version 1.3 of the entry. See complete history

Literature

The AAA+ ATPase TRIP13 remodels HORMA domains through N-terminal engagement and unfolding.

Ye, Q.Kim, D.H.Dereli, I.Rosenberg, S.C.Hagemann, G.Herzog, F.Toth, A.Cleveland, D.W.Corbett, K.D.

(2017) EMBO J. 36: 2419-2434

  • DOI: 10.15252/embj.201797291
  • Primary Citation of Related Structures:  

  • PubMed Abstract: 
  • Proteins of the conserved HORMA domain family, including the spindle assembly checkpoint protein MAD2 and the meiotic HORMADs, assemble into signaling complexes by binding short peptides termed "closure motifs". The AAA+ ATPase TRIP13 regulates both ...

    Proteins of the conserved HORMA domain family, including the spindle assembly checkpoint protein MAD2 and the meiotic HORMADs, assemble into signaling complexes by binding short peptides termed "closure motifs". The AAA+ ATPase TRIP13 regulates both MAD2 and meiotic HORMADs by disassembling these HORMA domain-closure motif complexes, but its mechanisms of substrate recognition and remodeling are unknown. Here, we combine X-ray crystallography and crosslinking mass spectrometry to outline how TRIP13 recognizes MAD2 with the help of the adapter protein p31comet We show that p31comet binding to the TRIP13 N-terminal domain positions the disordered MAD2 N-terminus for engagement by the TRIP13 "pore loops", which then unfold MAD2 in the presence of ATP N-terminal truncation of MAD2 renders it refractory to TRIP13 action in vitro, and in cells causes spindle assembly checkpoint defects consistent with loss of TRIP13 function. Similar truncation of HORMAD1 in mouse spermatocytes compromises its TRIP13-mediated removal from meiotic chromosomes, highlighting a conserved mechanism for recognition and disassembly of HORMA domain-closure motif complexes by TRIP13.


    Organizational Affiliation

    Ludwig Institute for Cancer Research, San Diego Branch, La Jolla, CA, USA.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
Pachytene checkpoint protein 2 homolog
D
432Homo sapiensMutation(s): 1 
Gene Names: TRIP13 (PCH2)
Find proteins for Q15645 (Homo sapiens)
Go to Gene View: TRIP13
Go to UniProtKB:  Q15645
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 3.02 Å
  • R-Value Free: 0.238 
  • R-Value Work: 0.199 
  • Space Group: P 65
  • Diffraction Data DOI: 
    10.15785/SBGRID/409 SBGrid
Unit Cell:
Length (Å)Angle (°)
a = 96.964α = 90.00
b = 96.964β = 90.00
c = 122.646γ = 120.00
Software Package:
Software NamePurpose
XDSdata reduction
PHASERphasing
Aimlessdata scaling
PHENIXrefinement

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History & Funding Information

Deposition Data

  • Deposited Date: 2017-05-08 
  • Released Date: 2017-06-14 
  • Deposition Author(s): Ye, Q., Corbett, K.D.

Funding OrganizationLocationGrant Number
National Institutes of Health/National Institute of General Medical SciencesUnited StatesR01 GM104141

Revision History 

  • Version 1.0: 2017-06-14
    Type: Initial release
  • Version 1.1: 2017-07-12
    Type: Database references
  • Version 1.2: 2017-08-30
    Type: Database references
  • Version 1.3: 2017-09-27
    Type: Author supporting evidence