1LQB

Crystal structure of a hydroxylated HIF-1 alpha peptide bound to the pVHL/elongin-C/elongin-B complex


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2 Å
  • R-Value Free: 0.277 
  • R-Value Work: 0.225 

wwPDB Validation 3D Report Full Report


This is version 1.2 of the entry. See complete history

Literature

Structural basis for the recognition of hydroxyproline in HIF-1 alpha by pVHL.

Hon, W.C.Wilson, M.I.Harlos, K.Claridge, T.D.Schofield, C.J.Pugh, C.W.Maxwell, P.H.Ratcliffe, P.J.Stuart, D.I.Jones, E.Y.

(2002) Nature 417: 975-978

  • DOI: 10.1038/nature00767

  • PubMed Abstract: 
  • Hypoxia-inducible factor-1 (HIF-1) is a transcriptional complex that controls cellular and systemic homeostatic responses to oxygen availability. HIF-1 alpha is the oxygen-regulated subunit of HIF-1, an alpha beta heterodimeric complex. HIF-1 alpha i ...

    Hypoxia-inducible factor-1 (HIF-1) is a transcriptional complex that controls cellular and systemic homeostatic responses to oxygen availability. HIF-1 alpha is the oxygen-regulated subunit of HIF-1, an alpha beta heterodimeric complex. HIF-1 alpha is stable in hypoxia, but in the presence of oxygen it is targeted for proteasomal degradation by the ubiquitination complex pVHL, the protein of the von Hippel Lindau (VHL) tumour suppressor gene and a component of an E3 ubiquitin ligase complex. Capture of HIF-1 alpha by pVHL is regulated by hydroxylation of specific prolyl residues in two functionally independent regions of HIF-1 alpha. The crystal structure of a hydroxylated HIF-1 alpha peptide bound to VCB (pVHL, elongins C and B) and solution binding assays reveal a single, conserved hydroxyproline-binding pocket in pVHL. Optimized hydrogen bonding to the buried hydroxyprolyl group confers precise discrimination between hydroxylated and unmodified prolyl residues. This mechanism provides a new focus for development of therapeutic agents to modulate cellular responses to hypoxia.


    Organizational Affiliation

    Division of Structural Biology, Henry Wellcome Building of Genomic Medicine, Roosevelt Drive, Oxford OX3 7BN, UK.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
Elongin B
A
118Homo sapiensGene Names: ELOB (TCEB2)
Find proteins for Q15370 (Homo sapiens)
Go to Gene View: ELOB
Go to UniProtKB:  Q15370
Entity ID: 2
MoleculeChainsSequence LengthOrganismDetails
Elongin C
B
96Homo sapiensGene Names: ELOC (TCEB1)
Find proteins for Q15369 (Homo sapiens)
Go to Gene View: ELOC
Go to UniProtKB:  Q15369
Entity ID: 3
MoleculeChainsSequence LengthOrganismDetails
von hippel-lindau disease tumor supressor
C
162Homo sapiensGene Names: VHL
Find proteins for P40337 (Homo sapiens)
Go to Gene View: VHL
Go to UniProtKB:  P40337
Entity ID: 4
MoleculeChainsSequence LengthOrganismDetails
Hypoxia-inducible factor 1 ALPHA
D
34Homo sapiensGene Names: HIF1A (BHLHE78, MOP1, PASD8)
Find proteins for Q16665 (Homo sapiens)
Go to Gene View: HIF1A
Go to UniProtKB:  Q16665
Small Molecules
Ligands 1 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
SO4
Query on SO4

Download SDF File 
Download CCD File 
A
SULFATE ION
O4 S
QAOWNCQODCNURD-UHFFFAOYSA-L
 Ligand Interaction
Modified Residues  1 Unique
IDChainsTypeFormula2D DiagramParent
HYP
Query on HYP
D
L-PEPTIDE LINKINGC5 H9 N O3PRO
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2 Å
  • R-Value Free: 0.277 
  • R-Value Work: 0.225 
  • Space Group: P 43 21 2
Unit Cell:
Length (Å)Angle (°)
a = 58.940α = 90.00
b = 58.940β = 90.00
c = 243.380γ = 90.00
Software Package:
Software NamePurpose
EPMRphasing
HKL-2000data reduction
CNSrefinement
SCALEPACKdata scaling

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2002-07-03
    Type: Initial release
  • Version 1.1: 2008-04-28
    Type: Version format compliance
  • Version 1.2: 2011-07-13
    Type: Version format compliance