2Y34

S-nitrosylated PHD2 (NO exposed) in complex with Fe(II) and UN9


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.01 Å
  • R-Value Free: 0.225 
  • R-Value Work: 0.221 
  • R-Value Observed: 0.221 

wwPDB Validation   3D Report Full Report


Ligand Structure Quality Assessment 


This is version 1.4 of the entry. See complete history


Literature

Studies on the reaction of nitric oxide with the hypoxia-inducible factor prolyl hydroxylase domain 2 (EGLN1).

Chowdhury, R.Flashman, E.Mecinovic, J.Kramer, H.B.Kessler, B.M.Frapart, Y.M.Boucher, J.L.Clifton, I.J.McDonough, M.A.Schofield, C.J.

(2011) J Mol Biol 410: 268-279

  • DOI: 10.1016/j.jmb.2011.04.075
  • Primary Citation of Related Structures:  
    2Y33, 2Y34

  • PubMed Abstract: 
  • The hypoxic response in animals is mediated via the transcription factor hypoxia-inducible factor (HIF). An oxygen-sensing component of the HIF system is provided by Fe(II) and 2-oxoglutarate-dependent oxygenases that catalyse the posttranslational hydroxylation of the HIF-α subunit ...

    The hypoxic response in animals is mediated via the transcription factor hypoxia-inducible factor (HIF). An oxygen-sensing component of the HIF system is provided by Fe(II) and 2-oxoglutarate-dependent oxygenases that catalyse the posttranslational hydroxylation of the HIF-α subunit. It is proposed that the activity of the HIF hydroxylases can be regulated by their reaction with nitric oxide. We describe biochemical and biophysical studies on the reaction of prolyl hydroxylase domain-containing enzyme (PHD) isoform 2 (EGLN1) with nitric oxide and a nitric oxide transfer reagent. The combined results reveal the potential for the catalytic domain of PHD2 to react with nitric oxide both at its Fe(II) and at cysteine residues. Although the biological significance is unclear, the results suggest that the reaction of PHD2 with nitric oxide has the potential to be complex and are consistent with proposals based on cellular studies that nitric oxide may regulate the hypoxic response by direct reaction with the HIF hydroxylases.


    Related Citations: 
    • Structural Basis for Binding of Hypoxia-Inducible Factor to the Oxygen-Sensing Prolyl Hydroxylases.
      Chowdhury, R., McDonough, M.A., Mecinovic, J., Loenarz, C., Flashman, E., Hewitson, K.S., Domene, C., Schofield, C.J.
      (2009) Structure 17: 981
    • Cellular Oxygen Sensing: Crystal Structure of Hypoxia-Inducible Factor Prolyl Hydroxylase (Phd2).
      McDonough, M.A., Li, V., Flashman, E., Chowdhury, R., Mohr, C., Lienard, B.M.R., Zondlo, J., Oldham, N.J., Clifton, I.J., Lewis, J., Mcneill, L.A., Kurzeja, R.J.M., Hewitson, K.S., Yang, E., Jordan, S., Syed, R.S., Schofield, C.J.
      (2006) Proc Natl Acad Sci U S A 103: 9814

    Organizational Affiliation

    Chemistry Research Laboratory, Department of Chemistry, University of Oxford, Mansfield Road, Oxford OX1 3TA, UK.



Macromolecules
Find similar proteins by:  (by identity cutoff)  |  3D Structure
Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
EGL NINE HOMOLOG 1A252Homo sapiensMutation(s): 0 
Gene Names: EGLN1C1orf12PNAS-118PNAS-137
EC: 1.14.11 (PDB Primary Data), 1.14.11.29 (UniProt)
UniProt & NIH Common Fund Data Resources
Find proteins for Q9GZT9 (Homo sapiens)
Explore Q9GZT9 
Go to UniProtKB:  Q9GZT9
PHAROS:  Q9GZT9
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupQ9GZT9
Protein Feature View
Expand
  • Reference Sequence
Small Molecules
Ligands 2 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
UN9
Query on UN9

Download Ideal Coordinates CCD File 
C [auth A],
D [auth A]
N-[(1-CHLORO-4-HYDROXYISOQUINOLIN-3-YL)CARBONYL]GLYCINE
C12 H9 Cl N2 O4
OUQVKRKGTAUJQA-UHFFFAOYSA-N
 Ligand Interaction
FE2
Query on FE2

Download Ideal Coordinates CCD File 
B [auth A]FE (II) ION
Fe
CWYNVVGOOAEACU-UHFFFAOYSA-N
 Ligand Interaction
Modified Residues  1 Unique
IDChainsTypeFormula2D DiagramParent
SNC
Query on SNC
A L-PEPTIDE LINKINGC3 H6 N2 O3 SCYS
Binding Affinity Annotations 
IDSourceBinding Affinity
UN9 PDBBind:  2Y34 Kd: 80 (nM) from 1 assay(s)
BindingDB:  2Y34 Kd: 80 (nM) from 1 assay(s)
IC50: min: 70, max: 7500 (nM) from 8 assay(s)
EC50: 7.90e+4 (nM) from 1 assay(s)
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.01 Å
  • R-Value Free: 0.225 
  • R-Value Work: 0.221 
  • R-Value Observed: 0.221 
  • Space Group: P 63
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 110.302α = 90
b = 110.302β = 90
c = 40.378γ = 120
Software Package:
Software NamePurpose
CNSrefinement
HKL-2000data reduction
HKL-2000data scaling
PHASERphasing

Structure Validation

View Full Validation Report



Ligand Structure Quality Assessment 



Entry History 

Deposition Data

Revision History  (Full details and data files)

  • Version 1.0: 2010-12-29
    Type: Initial release
  • Version 1.1: 2011-06-16
    Changes: Version format compliance
  • Version 1.2: 2011-07-13
    Changes: Version format compliance
  • Version 1.3: 2018-03-07
    Changes: Database references, Source and taxonomy, Structure summary
  • Version 1.4: 2019-01-30
    Changes: Data collection, Experimental preparation