Crystal Structure of TEL SAM Polymer

Experimental Data Snapshot

  • Resolution: 1.45 Å
  • R-Value Free: 0.195 
  • R-Value Work: 0.184 

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Polymerization of the SAM domain of TEL in leukemogenesis and transcriptional repression.

Kim, C.A.Phillips, M.L.Kim, W.Gingery, M.Tran, H.H.Robinson, M.A.Faham, S.Bowie, J.U.

(2001) EMBO J 20: 4173-4182

  • DOI: https://doi.org/10.1093/emboj/20.15.4173
  • Primary Citation of Related Structures:  

  • PubMed Abstract: 

    TEL is a transcriptional repressor that is a frequent target of chromosomal translocations in a large number of hematalogical malignancies. These rearrangements fuse a potent oligomerization module, the SAM domain of TEL, to a variety of tyrosine kinases or transcriptional regulatory proteins. The self-associating property of TEL-SAM is essential for cell transformation in many, if not all of these diseases. Here we show that the TEL-SAM domain forms a helical, head-to-tail polymeric structure held together by strong intermolecular contacts, providing the first clear demonstration that SAM domains can polymerize. Our results also suggest a mechanism by which SAM domains could mediate the spreading of transcriptional repression complexes along the chromosome.

  • Organizational Affiliation

    Department of Chemistry and Biochemistry, DOE Laboratory of Structural Biology and Molecular Medicine, University of California, Los Angeles, CA, USA.

Find similar proteins by:  (by identity cutoff)  |  3D Structure
Entity ID: 1
MoleculeChains Sequence LengthOrganismDetailsImage
A, B, C
89Homo sapiensMutation(s): 1 
Gene Names: TEL
UniProt & NIH Common Fund Data Resources
Find proteins for P41212 (Homo sapiens)
Explore P41212 
Go to UniProtKB:  P41212
PHAROS:  P41212
GTEx:  ENSG00000139083 
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupP41212
Sequence Annotations
  • Reference Sequence
Experimental Data & Validation

Experimental Data

  • Resolution: 1.45 Å
  • R-Value Free: 0.195 
  • R-Value Work: 0.184 
  • Space Group: C 1 2 1
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 132.865α = 90
b = 52.678β = 113.9
c = 58.701γ = 90
Software Package:
Software NamePurpose
DENZOdata reduction
SCALEPACKdata scaling

Structure Validation

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Entry History 

Deposition Data

Revision History  (Full details and data files)

  • Version 1.0: 2002-07-03
    Type: Initial release
  • Version 1.1: 2008-04-27
    Changes: Version format compliance
  • Version 1.2: 2011-07-13
    Changes: Version format compliance
  • Version 1.3: 2022-12-21
    Changes: Database references, Derived calculations