5EJC

Crystal structural of the TSC1-TBC1D7 complex


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 3.1 Å
  • R-Value Free: 0.239 
  • R-Value Work: 0.220 

wwPDB Validation 3D Report Full Report


This is version 1.3 of the entry. See complete history

Literature

Structural Basis of the Interaction between Tuberous Sclerosis Complex 1 (TSC1) and Tre2-Bub2-Cdc16 Domain Family Member 7 (TBC1D7).

Qin, J.Wang, Z.Hoogeveen-Westerveld, M.Shen, G.Gong, W.Nellist, M.Xu, W.

(2016) J.Biol.Chem. 291: 8591-8601

  • DOI: 10.1074/jbc.M115.701870

  • PubMed Abstract: 
  • Mutations in TSC1 or TSC2 cause tuberous sclerosis complex (TSC), an autosomal dominant disorder characterized by the occurrence of benign tumors in various vital organs and tissues. TSC1 and TSC2, the TSC1 and TSC2 gene products, form the TSC protei ...

    Mutations in TSC1 or TSC2 cause tuberous sclerosis complex (TSC), an autosomal dominant disorder characterized by the occurrence of benign tumors in various vital organs and tissues. TSC1 and TSC2, the TSC1 and TSC2 gene products, form the TSC protein complex that senses specific cellular growth conditions to control mTORC1 signaling. TBC1D7 is the third subunit of the TSC complex, and helps to stabilize the TSC1-TSC2 complex through its direct interaction with TSC1. Homozygous inactivation of TBC1D7 causes intellectual disability and megaencephaly. Here we report the crystal structure of a TSC1-TBC1D7 complex and biochemical characterization of the TSC1-TBC1D7 interaction. TBC1D7 interacts with the C-terminal region of the predicted coiled-coil domain of TSC1. The TSC1-TBC1D7 interface is largely hydrophobic, involving the α4 helix of TBC1D7. Each TBC1D7 molecule interacts simultaneously with two parallel TSC1 helices from two TSC1 molecules, suggesting that TBC1D7 may stabilize the TSC complex by tethering the C-terminal ends of two TSC1 coiled-coils.


    Organizational Affiliation

    From the Institute of Biophysics, Chinese Academy of Sciences, Beijing 100101, China, the Department of Biological Structure, University of Washington, Seattle, Washington 98195, the University of Chinese Academy of Sciences, Beijing 100049, China.,From the Institute of Biophysics, Chinese Academy of Sciences, Beijing 100101, China, the Hefei National Laboratory for Physical Science at Microscale, University of Science and Technology of China, Hefei 230026, China wgong@ibp.ac.cn.,the Department of Clinical Genetics, Erasmus Medical Center, 3015CN Rotterdam, The Netherlands, and.,the Department of Biological Structure, University of Washington, Seattle, Washington 98195.,the Department of Clinical Genetics, Erasmus Medical Center, 3015CN Rotterdam, The Netherlands, and m.nellist@erasmusmc.nl.,From the Institute of Biophysics, Chinese Academy of Sciences, Beijing 100101, China, the Department of Biological Structure, University of Washington, Seattle, Washington 98195, wxu@uw.edu.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
TBC1 domain family member 7
A, B
276Homo sapiensMutation(s): 0 
Gene Names: TBC1D7 (TBC7)
Find proteins for Q9P0N9 (Homo sapiens)
Go to Gene View: TBC1D7
Go to UniProtKB:  Q9P0N9
Entity ID: 2
MoleculeChainsSequence LengthOrganismDetails
Hamartin
C, D, E, F
55Homo sapiensMutation(s): 0 
Gene Names: TSC1 (KIAA0243, TSC)
Find proteins for Q92574 (Homo sapiens)
Go to Gene View: TSC1
Go to UniProtKB:  Q92574
Small Molecules
Modified Residues  1 Unique
IDChainsTypeFormula2D DiagramParent
MSE
Query on MSE
A, B
L-PEPTIDE LINKINGC5 H11 N O2 SeMET
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 3.1 Å
  • R-Value Free: 0.239 
  • R-Value Work: 0.220 
  • Space Group: C 1 2 1
Unit Cell:
Length (Å)Angle (°)
a = 183.395α = 90.00
b = 66.704β = 91.91
c = 98.370γ = 90.00
Software Package:
Software NamePurpose
HKL-2000data reduction
PDB_EXTRACTdata extraction
REFMACrefinement
AutoSolphasing
HKL-2000data scaling

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History & Funding Information

Deposition Data


Funding OrganizationLocationGrant Number
Department of Defense (United States)United StatesW81XWH-13-1-0059 (TS120073)

Revision History 

  • Version 1.0: 2016-03-02
    Type: Initial release
  • Version 1.1: 2016-03-09
    Type: Database references
  • Version 1.2: 2016-05-11
    Type: Database references
  • Version 1.3: 2019-04-10
    Type: Author supporting evidence, Data collection, Database references, Derived calculations