4O1V

SPOP Promotes Tumorigenesis by Acting as a Key Regulatory Hub in Kidney Cancer

Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.00 Å
  • R-Value Free: 0.221 
  • R-Value Work: 0.192 
  • R-Value Observed: 0.193 

wwPDB Validation   3D Report Full Report


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Literature

SPOP Promotes Tumorigenesis by Acting as a Key Regulatory Hub in Kidney Cancer.

Li, G., Ci, W., Karmakar, S., Chen, K., Dhar, R., Fan, Z., Guo, Z., Zhang, J., Ke, Y., Wang, L., Zhuang, M., Hu, S., Li, X., Zhou, L., Li, X., Calabrese, M.F., Watson, E.R., Prasad, S.M., Rinker-Schaeffer, C., Eggener, S.E., Stricker, T., Tian, Y., Schulman, B.A., Liu, J., White, K.P.

(2014) Cancer Cell 25: 455-468

  • DOI: 10.1016/j.ccr.2014.02.007
  • Primary Citation of Related Structures:  
    4O1V

  • PubMed Abstract: 

    • Hypoxic stress and hypoxia-inducible factors (HIFs) play important roles in a wide range of tumors. We demonstrate that SPOP, which encodes an E3 ubiquitin ligase component, is a direct transcriptional target of HIFs in clear cell renal cell carcinoma (ccRCC) ...

    Hypoxic stress and hypoxia-inducible factors (HIFs) play important roles in a wide range of tumors. We demonstrate that SPOP, which encodes an E3 ubiquitin ligase component, is a direct transcriptional target of HIFs in clear cell renal cell carcinoma (ccRCC). Furthermore, hypoxia results in cytoplasmic accumulation of SPOP, which is sufficient to induce tumorigenesis. This tumorigenic activity occurs through the ubiquitination and degradation of multiple regulators of cellular proliferation and apoptosis, including the tumor suppressor PTEN, ERK phosphatases, the proapoptotic molecule Daxx, and the Hedgehog pathway transcription factor Gli2. Knockdown of SPOP specifically kills ccRCC cells, indicating that it may be a promising therapeutic target. Collectively, our results indicate that SPOP serves as a regulatory hub to promote ccRCC tumorigenesis.

    Organizational Affiliation: 

    Institute for Genomics and Systems Biology, University of Chicago and Argonne National Laboratory, Chicago, IL 60637, USA; Department of Human Genetics, University of Chicago, Chicago, IL 60637, USA; Section on Genetic Medicine, Department of Medicine, University of Chicago, Chicago, IL 60637, USA. Electronic address: kpwhite@uchicago.edu.



Macromolecules
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(by identity cutoff)  |  Structure
Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
Speckle-type POZ proteinA145Homo sapiensMutation(s): 0 
Gene Names: SPOP
UniProt & NIH Common Fund Data Resources
Find proteins for O43791 (Homo sapiens)
Explore O43791 
Go to UniProtKB:  O43791
PHAROS:  O43791
Protein Feature View
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  • Reference Sequence
  • Find similar proteins by:  Sequence   |   Structure
Entity ID: 2
MoleculeChainsSequence LengthOrganismDetailsImage
Phosphatidylinositol 3,4,5-trisphosphate 3-phosphatase and dual-specificity protein phosphatase PTENB15Homo sapiensMutation(s): 0 
Gene Names: PTEN, MMAC1, TEP1
EC: 3.1.3.16 (UniProt), 3.1.3.48 (UniProt), 3.1.3.67 (UniProt)
UniProt & NIH Common Fund Data Resources
Find proteins for P60484 (Homo sapiens)
Explore P60484 
Go to UniProtKB:  P60484
PHAROS:  P60484
GTEx:  ENSG00000171862
Protein Feature View
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  • Reference Sequence
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.00 Å
  • R-Value Free: 0.221 
  • R-Value Work: 0.192 
  • R-Value Observed: 0.193 
  • Space Group: C 1 2 1
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 60.5α = 90
b = 56.158β = 97.7
c = 42.611γ = 90
Software Package:
Software NamePurpose
PHASERphasing
REFMACrefinement
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: 2014-04-30
    Type: Initial release