6J07

Crystal structure of human TERB2 and TERB1


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 3.298 Å
  • R-Value Free: 0.337 
  • R-Value Work: 0.288 

wwPDB Validation 3D Report Full Report


This is version 1.0 of the entry. See complete history

Literature

The meiotic TERB1-TERB2-MAJIN complex tethers telomeres to the nuclear envelope.

Wang, Y.Chen, Y.Chen, J.Wang, L.Nie, L.Long, J.Chang, H.Wu, J.Huang, C.Lei, M.

(2019) Nat Commun 10: 564-564

  • DOI: 10.1038/s41467-019-08437-1
  • Primary Citation of Related Structures:  

  • PubMed Abstract: 
  • During meiotic prophase I, telomeres attach to and move on the nuclear envelope (NE), regulating chromosome movement to promote homologous pairing. Meiosis-specific proteins TERB1, TERB2 and MAJIN play a key role in this process. Here, we report the ...

    During meiotic prophase I, telomeres attach to and move on the nuclear envelope (NE), regulating chromosome movement to promote homologous pairing. Meiosis-specific proteins TERB1, TERB2 and MAJIN play a key role in this process. Here, we report the crystal structures of human TERB1-TERB2 and TERB2-MAJIN subcomplexes. Specific disruption of the TERB1-TERB2 or the TERB2-MAJIN interaction in the mouse Terb2 gene abolishes the telomere attachment to the NE and causes aberrant homologous pairing and disordered synapsis. In addition, depletion of SUN1 also partially disrupts the telomere-NE connection. We propose that the telomere-TRF1-TERB1-TERB2-MAJIN-NE interaction network and the telomere-LINC complex connection are likely two separate but cooperative pathways to stably recruit telomeres to the NE in meiosis prophase I. Our work provides a molecular model of the connection between telomeres and the NE and reveals the correlation between aberrant synapsis and the defective telomere attachment to the NE.


    Organizational Affiliation

    Shanghai Institute of Precision Medicine, 200125, Shanghai, China.,National Key Laboratory of Crop Genetic Improvement, Huazhong Agriculture University, 430072, Wuhan, China.,Key laboratory of Cell Differentiation and Apoptosis of Chinese Ministry of Education, Shanghai Jiao Tong University School of Medicine, 200025, Shanghai, China. leim@shsmu.edu.cn.,Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, 200011, Shanghai, China. huangchh@shsmu.edu.cn.,Shanghai Institute of Precision Medicine, 200125, Shanghai, China. leim@shsmu.edu.cn.,National Center for Protein Science Shanghai, State Key Laboratory of Molecular Biology, CAS Center for Excellence on Molecular Cell Science, Institute of Biochemistry and Cell Biology, Chinese Academy of Sciences, University of Chinese Academy of Sciences, 200031, Shanghai, China.,Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, 200011, Shanghai, China.,Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, 200011, Shanghai, China. leim@shsmu.edu.cn.,Shanghai Institute of Precision Medicine, 200125, Shanghai, China. huangchh@shsmu.edu.cn.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
Telomere repeats-binding bouquet formation protein 2
A
107Homo sapiensMutation(s): 0 
Gene Names: TERB2 (C15orf43)
Find proteins for Q8NHR7 (Homo sapiens)
Go to Gene View: TERB2
Go to UniProtKB:  Q8NHR7
Entity ID: 2
MoleculeChainsSequence LengthOrganismDetails
Telomere repeats-binding bouquet formation protein 1
B
60Homo sapiensMutation(s): 0 
Gene Names: TERB1 (CCDC79)
Find proteins for Q8NA31 (Homo sapiens)
Go to Gene View: TERB1
Go to UniProtKB:  Q8NA31
Small Molecules
Ligands 1 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
ZN
Query on ZN

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

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 3.298 Å
  • R-Value Free: 0.337 
  • R-Value Work: 0.288 
  • Space Group: P 64 2 2
Unit Cell:
Length (Å)Angle (°)
a = 126.900α = 90.00
b = 126.900β = 90.00
c = 90.429γ = 120.00
Software Package:
Software NamePurpose
PHENIXphasing
PDB_EXTRACTdata extraction
HKL-3000data collection
SCALEPACKdata scaling
PHENIXrefinement

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2019-02-27
    Type: Initial release