4KK0

Crystal Structure of TSC1 core domain from S. pombe


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.90 Å
  • R-Value Free: 0.256 
  • R-Value Work: 0.192 
  • R-Value Observed: 0.195 

wwPDB Validation 3D Report Full Report


This is version 1.1 of the entry. See complete history


Literature

Crystal structure of the yeast TSC1 core domain and implications for tuberous sclerosis pathological mutations.

Sun, W.Zhu, Y.J.Wang, Z.Zhong, Q.Gao, F.Lou, J.Gong, W.Xu, W.

(2013) Nat Commun 4: 2135-2135

  • DOI: 10.1038/ncomms3135
  • Primary Citation of Related Structures:  
    4KK0, 4KK1

  • PubMed Abstract: 
  • Tuberous sclerosis complex is a disease caused by mutations in two tumor-suppressor genes, TSC1 and TSC2. The TSC1 protein, also known as hamartin, has a critical role in controlling mTOR signalling. TSC1 does not bear apparent sequence homology with ...

    Tuberous sclerosis complex is a disease caused by mutations in two tumor-suppressor genes, TSC1 and TSC2. The TSC1 protein, also known as hamartin, has a critical role in controlling mTOR signalling. TSC1 does not bear apparent sequence homology with other proteins. Here we show that the N-terminal half of yeast TSC1 forms a protease-resistant domain, which is evolutionarily conserved. The crystal structure of this yeast TSC1 core domain shows that it contains a pseudo-HEAT repeat fold with its C-terminal end capped by a helical subdomain. This allows us to model the three-dimensional structure of the human TSC1 N-terminal domain (TSC1-NTD), which anchors essentially all pathogenic TSC1 missense mutations found in tuberous sclerosis patients. Interestingly, most pathogenic mutations map inside of the folded TSC1-NTD structure, whereas most non-pathogenic variants are on the structural surface. This indicates that the disruption of the TSC1-NTD globular structure is a major cause of tuberous sclerosis.


    Organizational Affiliation

    Beijing Key Laboratory of Non-coding RNA, Institute of Biophysics, Chinese Academy of Sciences, Beijing, China.



Macromolecules
Find similar proteins by:  (by identity cutoff)  |  Structure
Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
Tuberous sclerosis 1 protein homologABCDEFGHIJ461Schizosaccharomyces pombe 972h-Mutation(s): 0 
Gene Names: SPAC22F3.13tsc1
Find proteins for Q09778 (Schizosaccharomyces pombe (strain 972 / ATCC 24843))
Explore Q09778 
Go to UniProtKB:  Q09778
Protein Feature View
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  • Reference Sequence
Small Molecules
Modified Residues  1 Unique
IDChainsTypeFormula2D DiagramParent
MSE
Query on MSE
A,B,C,D,E,F,G,H,I,JL-PEPTIDE LINKINGC5 H11 N O2 SeMET
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.90 Å
  • R-Value Free: 0.256 
  • R-Value Work: 0.192 
  • R-Value Observed: 0.195 
  • Space Group: P 21 21 2
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 231.375α = 90
b = 239.791β = 90
c = 112.014γ = 90
Software Package:
Software NamePurpose
REFMACrefinement

Structure Validation

View Full Validation Report



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2013-07-17
    Type: Initial release
  • Version 1.1: 2013-07-31
    Changes: Database references