4Q9V

Crystal structure of TIPE3

Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.30 Å
  • R-Value Free: 0.262 
  • R-Value Work: 0.240 
  • R-Value Observed: 0.241 

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Literature

TIPE3 Is the Transfer Protein of Lipid Second Messengers that Promote Cancer.

Fayngerts, S.A., Wu, J., Oxley, C.L., Liu, X., Vourekas, A., Cathopoulis, T., Wang, Z., Cui, J., Liu, S., Sun, H., Lemmon, M.A., Zhang, L., Shi, Y., Chen, Y.H.

(2014) Cancer Cell 26: 465-478

  • DOI: 10.1016/j.ccr.2014.07.025
  • Primary Citation of Related Structures:  
    4Q9V

  • PubMed Abstract: 

    • More than half of human cancers have aberrantly upregulated phosphoinositide signals; yet how phospholipid signals are controlled during tumorigenesis is not fully understood. We report here that TIPE3 (TNFAIP8L3) is the transfer protein of phosphoinositide second messengers that promote cancer ...

    More than half of human cancers have aberrantly upregulated phosphoinositide signals; yet how phospholipid signals are controlled during tumorigenesis is not fully understood. We report here that TIPE3 (TNFAIP8L3) is the transfer protein of phosphoinositide second messengers that promote cancer. High-resolution crystal structure of TIPE3 shows a large hydrophobic cavity that is occupied by a phospholipid-like molecule. TIPE3 preferentially captures and shuttles two lipid second messengers, i.e., phosphatidylinositol 4,5-bisphosphate and phosphatidylinositol 3,4,5-trisphosphate, and increases their levels in the plasma membrane. Notably, human cancers have markedly upregulated TIPE3 expression. Knocking out TIPE3 diminishes tumorigenesis, whereas enforced TIPE3 expression enhances it in vivo. Thus, the function and metabolism of phosphoinositide second messengers are controlled by a specific transfer protein during tumorigenesis.

    Organizational Affiliation: 

    Department of Pathology and Laboratory Medicine, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA 19104, USA. Electronic address: yhc@mail.med.upenn.edu.



Macromolecules
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(by identity cutoff)  |  3D Structure
Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
Tumor necrosis factor alpha-induced protein 8-like protein 3A, B186Homo sapiensMutation(s): 0 
Gene Names: TNFAIP8L3, TIPE3
UniProt
Find proteins for Q5GJ75 (Homo sapiens)
Explore Q5GJ75 
Go to UniProtKB:  Q5GJ75
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupQ5GJ75
Protein Feature View
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  • Reference Sequence
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.30 Å
  • R-Value Free: 0.262 
  • R-Value Work: 0.240 
  • R-Value Observed: 0.241 
  • Space Group: I 2 2 2
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 61.729α = 90
b = 87.296β = 90
c = 242.309γ = 90
Software Package:
Software NamePurpose
HKL-2000data collection
PHASERphasing
PHENIXrefinement
HKL-2000data reduction
HKL-2000data scaling

Structure Validation

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Entry History 

Deposition Data

Revision History  (Full details and data files)

  • Version 1.0: 2014-10-22
    Type: Initial release