Biological Assembly 1  

Global Symmetry: Helical - H  (3D View)
Global Stoichiometry: Homo 3-mer - A3 

Biological assembly 1 assigned by authors.

Macromolecule Content

• Total Structure Weight: 33.33 kDa 
• Atom Count: 2,347 
• Modelled Residue Count: 239 
• Deposited Residue Count: 267 
• Unique protein chains: 1

 1JI7

Crystal Structure of TEL SAM Polymer

• PDB DOI: 10.2210/pdb1JI7/pdb

• Classification: TRANSCRIPTION
• Organism(s): Homo sapiens
• Expression System: Escherichia coli
• Mutation(s): Yes 


• Deposited: 2001-06-29 Released: 2002-07-03 
• Deposition Author(s): Kim, C.A., Phillips, M.L., Kim, W., Gingery, M., Tran, H.H., Robinson, M.A., Faham, S., Bowie, J.U.

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Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 1.45 Å
• R-Value Free: 0.195 
• R-Value Work: 0.184 

Literature

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

• PubMed: 11483520 
• DOI: 10.1093/emboj/20.15.4173
• Primary Citation of Related Structures:  
  1JI7


• 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.

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Organizational Affiliation: 

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

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
ETS-RELATED PROTEIN TEL1	A, B, C	89	Homo sapiens	Mutation(s): 1  Gene Names: TEL, ETV6, TEL1
UniProt & NIH Common Fund Data Resources
Find proteins for P41212 (Homo sapiens) Explore P41212  Go to UniProtKB:  P41212
PHAROS:  P41212

Small Molecules

Ligands 1 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram
SO4	D [auth A], E [auth B], F [auth B], G [auth C], H [auth C]	SULFATE ION O4 S QAOWNCQODCNURD-UHFFFAOYSA-L

Modified Residues  1 Unique
ID	Chains	Type	Formula	2D Diagram	Parent
MSE	A, B, C	L-PEPTIDE LINKING	C5 H11 N O2 Se		MET

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• 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 = 132.865	α = 90
b = 52.678	β = 113.9
c = 58.701	γ = 90

Software Package:

Software Name	Purpose
SOLVE	phasing
CNS	refinement
DENZO	data reduction
SCALEPACK	data scaling

Structure Validation

Entry History 

Deposition Data

• Released Date: 2002-07-03 
Deposition Author(s): Kim, C.A., Phillips, M.L., Kim, W., Gingery, M., Tran, H.H., Robinson, M.A., Faham, S., Bowie, J.U.

Revision History  

• 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