Biological Assembly 1  

 3D View: Structure | Electron Density

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Global Symmetry: Asymmetric - C1 
Global Stoichiometry: Monomer - A 

Biological assembly 1 assigned by authors and generated by PISA (software)

Macromolecule Content

• Total Structure Weight: 18019.44 
• Atom Count: 1155 
• Residue Count: 160 
• Unique protein chains: 2

4O1V

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

• DOI: 10.2210/pdb4O1V/pdb

• Classification: PROTEIN BINDING
• Organism(s): Homo sapiens
• Expression System: Escherichia coli


• Deposited: 2013-12-16 Released: 2014-04-30 
• Deposition Author(s): Calabrese, M.F., Watson, E.R., Schulman, B.A.

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Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 2 Å
• R-Value Free: 0.221 
• R-Value Work: 0.192 

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

• PubMed: 24656772 
• DOI: 10.1016/j.ccr.2014.02.007


• 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). 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.

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Organizational Affiliation: 

Key Laboratory of Genome Sciences and Information, Beijing Institute of Genomics, Chinese Academy of Sciences, Beijing 100101, China; University of Chinese Academy of Sciences, Beijing 100049, China.

Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details
Speckle-type POZ protein	A	145	Homo sapiens	Mutation(s): 0  Gene Names: SPOP
Find proteins for O43791 (Homo sapiens) Go to Gene View: SPOP Go to UniProtKB:  O43791

Entity ID: 2
Molecule	Chains	Sequence Length	Organism	Details
Phosphatidylinositol 3,4,5-trisphosphate 3-phosphatase and dual-specificity protein phosphatase PTEN	B	15	Homo sapiens	Mutation(s): 0  Gene Names: PTEN (MMAC1, TEP1) EC: 3.1.3.16, 3.1.3.48, 3.1.3.67
Find proteins for P60484 (Homo sapiens) Go to Gene View: PTEN Go to UniProtKB:  P60484

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 2 Å
• R-Value Free: 0.221 
• R-Value Work: 0.192 
• Space Group: C 1 2 1

Unit Cell:

Length (Å)	Angle (°)
a = 60.500	α = 90.00
b = 56.158	β = 97.70
c = 42.611	γ = 90.00

Software Package:

Software Name	Purpose
HKL-2000	data reduction
PHASER	phasing
REFMAC	refinement
HKL-2000	data scaling

Structure Validation

Entry History 

Deposition Data

• Deposited Date: 2013-12-16 
• Released Date: 2014-04-30 
• Deposition Author(s): Calabrese, M.F., Watson, E.R., Schulman, B.A.

Revision History 

• Version 1.0: 2014-04-30
  Type: Initial release