6BVB

Crystal structure of HIF-2alpha-pVHL-elongin B-elongin C


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.002 Å
  • R-Value Free: 0.235 
  • R-Value Work: 0.199 

wwPDB Validation 3D Report Full Report


This is version 1.1 of the entry. See complete history

Literature

HIF-2 alpha-pVHL complex reveals broad genotype-phenotype correlations in HIF-2 alpha-driven disease.

Tarade, D.Robinson, C.M.Lee, J.E.Ohh, M.

(2018) Nat Commun 9: 3359-3359

  • DOI: 10.1038/s41467-018-05554-1

  • PubMed Abstract: 
  • It is definitively established that mutations in transcription factor HIF-2α are causative of both neuroendocrine tumors (class 1 disease) and polycythemia (class 2 disease). However, the molecular mechanism that underlies this emergent genotype-phen ...

    It is definitively established that mutations in transcription factor HIF-2α are causative of both neuroendocrine tumors (class 1 disease) and polycythemia (class 2 disease). However, the molecular mechanism that underlies this emergent genotype-phenotype relationship has remained unclear. Here, we report the structure of HIF-2α peptide bound to pVHL-elongin B-elongin C (VBC) heterotrimeric complex, which shows topographical demarcation of class 1 and 2 mutations affecting residues predicted, and demonstrated via biophysical analyses, to differentially impact HIF-2α-pVHL interaction interface stability. Concordantly, biochemical experiments showed that class 1 mutations disrupt pVHL affinity to HIF-2α more adversely than class 2 mutations directly or indirectly via impeding PHD2-mediated hydroxylation. These findings suggest that neuroendocrine tumor pathogenesis requires a higher HIF-2α dose than polycythemia, which requires only a mild increase in HIF-2α activity. These biophysical data reveal a structural basis that underlies, and can be used to predict de novo, broad genotype-phenotype correlations in HIF-2α-driven disease.


    Organizational Affiliation

    Department of Laboratory Medicine & Pathobiology, University of Toronto, 1 King's College Circle, Toronto, ON, M5S 1A8, Canada.,Department of Biochemistry, University of Toronto, 661 University Avenue, Toronto, ON, M5G 1M1, Canada.,Department of Laboratory Medicine & Pathobiology, University of Toronto, 1 King's College Circle, Toronto, ON, M5S 1A8, Canada. michael.ohh@utoronto.ca.,Department of Biochemistry, University of Toronto, 661 University Avenue, Toronto, ON, M5G 1M1, Canada. michael.ohh@utoronto.ca.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
von Hippel-Lindau disease tumor suppressor
V
162Homo sapiensMutation(s): 0 
Gene Names: VHL
Find proteins for P40337 (Homo sapiens)
Go to Gene View: VHL
Go to UniProtKB:  P40337
Entity ID: 2
MoleculeChainsSequence LengthOrganismDetails
Elongin-B
B
118Homo sapiensMutation(s): 0 
Gene Names: ELOB (TCEB2)
Find proteins for Q15370 (Homo sapiens)
Go to Gene View: ELOB
Go to UniProtKB:  Q15370
Entity ID: 3
MoleculeChainsSequence LengthOrganismDetails
Elongin-C
C
96Homo sapiensMutation(s): 0 
Gene Names: ELOC (TCEB1)
Find proteins for Q15369 (Homo sapiens)
Go to Gene View: ELOC
Go to UniProtKB:  Q15369
Entity ID: 4
MoleculeChainsSequence LengthOrganismDetails
Hypoxia-Inducible Factor 2 alpha
H
19Homo sapiensMutation(s): 0 
Gene Names: EPAS1 (BHLHE73, HIF2A, MOP2, PASD2)
Find proteins for Q99814 (Homo sapiens)
Go to Gene View: EPAS1
Go to UniProtKB:  Q99814
Small Molecules
Modified Residues  1 Unique
IDChainsTypeFormula2D DiagramParent
HYP
Query on HYP
H
L-PEPTIDE LINKINGC5 H9 N O3PRO
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.002 Å
  • R-Value Free: 0.235 
  • R-Value Work: 0.199 
  • Space Group: P 43 21 2
Unit Cell:
Length (Å)Angle (°)
a = 59.770α = 90.00
b = 59.770β = 90.00
c = 246.100γ = 90.00
Software Package:
Software NamePurpose
XSCALEdata scaling
XDSdata reduction
PHENIXphasing
PHENIXrefinement

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History & Funding Information

Deposition Data


Funding OrganizationLocationGrant Number
Canadian Institutes of Health ResearchCanadaMOP-77718 (M.O)
Canadian Institutes of Health ResearchCanadaMOP-136978 (M.O)
Canadian Institutes of Health ResearchMOP-133694 (J.E.L)

Revision History 

  • Version 1.0: 2018-08-01
    Type: Initial release
  • Version 1.1: 2018-09-05
    Type: Data collection, Database references, Source and taxonomy