2QAR

Structure of the 2TEL crystallization module fused to T4 lysozyme with a helical linker.


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.4 Å
  • R-Value Free: 0.255 
  • R-Value Work: 0.220 

wwPDB Validation 3D Report Full Report


This is version 1.2 of the entry. See complete history

Literature

Polymer-driven crystallization.

Nauli, S.Farr, S.Lee, Y.J.Kim, H.Y.Faham, S.Bowie, J.U.

(2007) Protein Sci. 16: 2542-2551

  • DOI: 10.1110/ps.073074207
  • Primary Citation of Related Structures:  

  • PubMed Abstract: 
  • Obtaining well-diffracting crystals of macromolecules remains a significant barrier to structure determination. Here we propose and test a new approach to crystallization, in which the crystallization target is fused to a polymerizing protein module, ...

    Obtaining well-diffracting crystals of macromolecules remains a significant barrier to structure determination. Here we propose and test a new approach to crystallization, in which the crystallization target is fused to a polymerizing protein module, so that polymer formation drives crystallization of the target. We test the approach using a polymerization module called 2TEL, which consists of two tandem sterile alpha motif (SAM) domains from the protein translocation Ets leukemia (TEL). The 2TEL module is engineered to polymerize as the pH is lowered, which allows the subtle modulation of polymerization needed for crystal formation. We show that the 2TEL module can drive the crystallization of 11 soluble proteins, including three that resisted prior crystallization attempts. In addition, the 2TEL module crystallizes in the presence of various detergents, suggesting that it might facilitate membrane protein crystallization. The crystal structures of two fusion proteins show that the TELSAM polymer is responsible for the majority of contacts in the crystal lattice. The results suggest that biological polymers could be designed as crystallization modules.


    Organizational Affiliation

    UCLA-DOE Institute of Genomics and Proteomics, University of California, Los Angeles 90095-1570, USA.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
E80-TELSAM domain
A, D
86Homo sapiensMutation(s): 0 
Gene Names: ETV6 (TEL, TEL1)
Find proteins for P41212 (Homo sapiens)
Go to Gene View: ETV6
Go to UniProtKB:  P41212
Entity ID: 2
MoleculeChainsSequence LengthOrganismDetails
TELSAM domain
B, E
93Homo sapiensMutation(s): 0 
Gene Names: ETV6 (TEL, TEL1)
Find proteins for P41212 (Homo sapiens)
Go to Gene View: ETV6
Go to UniProtKB:  P41212
Entity ID: 3
MoleculeChainsSequence LengthOrganismDetails
Lysozyme
C, F
163Enterobacteria phage T4Mutation(s): 0 
Gene Names: E
EC: 3.2.1.17
Find proteins for P00720 (Enterobacteria phage T4)
Go to UniProtKB:  P00720
Small Molecules
Ligands 2 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
NH4
Query on NH4

Download SDF File 
Download CCD File 
A, D
AMMONIUM ION
H4 N
QGZKDVFQNNGYKY-UHFFFAOYSA-O
 Ligand Interaction
NO3
Query on NO3

Download SDF File 
Download CCD File 
A, B, D, E
NITRATE ION
N O3
NHNBFGGVMKEFGY-UHFFFAOYSA-N
 Ligand Interaction
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.4 Å
  • R-Value Free: 0.255 
  • R-Value Work: 0.220 
  • Space Group: P 32
Unit Cell:
Length (Å)Angle (°)
a = 119.512α = 90.00
b = 119.512β = 90.00
c = 58.133γ = 120.00
Software Package:
Software NamePurpose
SCALEPACKdata scaling
REFMACrefinement
PHASERphasing
PDB_EXTRACTdata extraction
DENZOdata reduction

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

  • Deposited Date: 2007-06-15 
  • Released Date: 2008-01-15 
  • Deposition Author(s): Nauli, S., Bowie, J.U.

Revision History 

  • Version 1.0: 2008-01-15
    Type: Initial release
  • Version 1.1: 2011-07-13
    Type: Advisory, Version format compliance
  • Version 1.2: 2017-10-18
    Type: Refinement description