8FT6

The von Willebrand factor A domain of human capillary morphogenesis gene II, flexibly fused to the 1TEL crystallization chaperone, Ala-Ala linker variant, SUMO tag-free preparation.


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.62 Å
  • R-Value Free: 0.234 
  • R-Value Work: 0.205 
  • R-Value Observed: 0.206 

Starting Models: experimental
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wwPDB Validation   3D Report Full Report


This is version 1.2 of the entry. See complete history


Literature

Increasing the bulk of the 1TEL-target linker and retaining the 10×His tag in a 1TEL-CMG2-vWa construct improves crystal order and diffraction limits.

Gajjar, P.L.Pedroza Romo, M.J.Litchfield, C.M.Callahan, M.Redd, N.Nawarathnage, S.Soleimani, S.Averett, J.Wilson, E.Lewis, A.Stewart, C.Tseng, Y.J.Doukov, T.Lebedev, A.Moody, J.D.

(2023) Acta Crystallogr D Struct Biol 79: 925-943

  • DOI: https://doi.org/10.1107/S2059798323007246
  • Primary Citation of Related Structures:  
    8FT6, 8FT8, 8FZ4, 8FZU, 8FZV

  • PubMed Abstract: 

    TELSAM-fusion crystallization has the potential to become a revolutionary tool for the facile crystallization of proteins. TELSAM fusion can increase the crystallization rate and enable crystallization at low protein concentrations, in some cases with minimal crystal contacts [Nawarathnage et al. (2022), Open Biol. 12, 210271]. Here, requirements for the linker composition between 1TEL and a fused CMG2 vWa domain were investigated. Ala-Ala, Ala-Val, Thr-Val and Thr-Thr linkers were evaluated, comparing metrics for crystallization propensity and crystal order. The effect on crystallization of removing or retaining the purification tag was then tested. It was discovered that increasing the linker bulk and retaining the 10×His purification tag improved the diffraction resolution, likely by decreasing the number of possible vWa-domain orientations in the crystal. Additionally, it was discovered that some vWa-domain binding modes are correlated with scrambling of the 1TEL polymer orientation in crystals and an effective mitigation strategy for this pathology is presented.


  • Organizational Affiliation

    Department of Chemistry and Biochemistry, Brigham Young University, 701 East University Parkway, Provo, UT 84602, USA.


Macromolecules
Find similar proteins by:  (by identity cutoff)  |  3D Structure
Entity ID: 1
MoleculeChains Sequence LengthOrganismDetailsImage
Transcription factor ETV6,Anthrax toxin receptor 2 chimera266Homo sapiensMutation(s): 6 
Gene Names: ETV6TELTEL1ANTXR2CMG2
UniProt & NIH Common Fund Data Resources
Find proteins for P41212 (Homo sapiens)
Explore P41212 
Go to UniProtKB:  P41212
PHAROS:  P41212
GTEx:  ENSG00000139083 
Find proteins for P58335 (Homo sapiens)
Explore P58335 
Go to UniProtKB:  P58335
PHAROS:  P58335
GTEx:  ENSG00000163297 
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupsP41212P58335
Sequence Annotations
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  • Reference Sequence
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.62 Å
  • R-Value Free: 0.234 
  • R-Value Work: 0.205 
  • R-Value Observed: 0.206 
  • Space Group: P 65
  • Diffraction Data: https://doi.org/10.18430/M38FT6
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 99.745α = 90
b = 99.745β = 90
c = 50.135γ = 120
Software Package:
Software NamePurpose
PHENIXrefinement
Blu-Icedata collection
autoPROCdata reduction
autoPROCdata scaling
PHASERphasing
Cootmodel building

Structure Validation

View Full Validation Report



Entry History & Funding Information

Deposition Data


Funding OrganizationLocationGrant Number
National Institutes of Health/National Institute of General Medical Sciences (NIH/NIGMS)United States1R15GM146209-01

Revision History  (Full details and data files)

  • Version 1.0: 2023-03-22
    Type: Initial release
  • Version 1.1: 2023-06-21
    Changes: Database references
  • Version 1.2: 2023-10-18
    Changes: Data collection, Database references