6RK9

Aspartyl/Asparaginyl beta-hydroxylase (AspH)oxygenase and TPR domains in complex with manganese, N-oxalylglycine and cyclic peptide substrate mimic of factor X


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.29 Å
  • R-Value Free: 0.235 
  • R-Value Work: 0.211 
  • R-Value Observed: 0.212 

wwPDB Validation 3D Report Full Report


This is version 1.1 of the entry. See complete history

Re-refinement Note

This entry reflects an alternative modeling of the original data in: 

  • 5JZZ

Literature

Aspartate/asparagine-beta-hydroxylase crystal structures reveal an unexpected epidermal growth factor-like domain substrate disulfide pattern.

Pfeffer, I.Brewitz, L.Krojer, T.Jensen, S.A.Kochan, G.T.Kershaw, N.J.Hewitson, K.S.McNeill, L.A.Kramer, H.Munzel, M.Hopkinson, R.J.Oppermann, U.Handford, P.A.McDonough, M.A.Schofield, C.J.

(2019) Nat Commun 10: 4910-4910

  • DOI: 10.1038/s41467-019-12711-7
  • Structures With Same Primary Citation

  • PubMed Abstract: 
  • AspH is an endoplasmic reticulum (ER) membrane-anchored 2-oxoglutarate oxygenase whose C-terminal oxygenase and tetratricopeptide repeat (TPR) domains present in the ER lumen. AspH catalyses hydroxylation of asparaginyl- and aspartyl-residues in epid ...

    AspH is an endoplasmic reticulum (ER) membrane-anchored 2-oxoglutarate oxygenase whose C-terminal oxygenase and tetratricopeptide repeat (TPR) domains present in the ER lumen. AspH catalyses hydroxylation of asparaginyl- and aspartyl-residues in epidermal growth factor-like domains (EGFDs). Here we report crystal structures of human AspH, with and without substrate, that reveal substantial conformational changes of the oxygenase and TPR domains during substrate binding. Fe(II)-binding by AspH is unusual, employing only two Fe(II)-binding ligands (His679/His725). Most EGFD structures adopt an established fold with a conserved Cys1-3, 2-4, 5-6 disulfide bonding pattern; an unexpected Cys3-4 disulfide bonding pattern is observed in AspH-EGFD substrate complexes, the catalytic relevance of which is supported by studies involving stable cyclic peptide substrate analogues and by effects of Ca(II) ions on activity. The results have implications for EGFD disulfide pattern processing in the ER and will enable medicinal chemistry efforts targeting human 2OG oxygenases.


    Organizational Affiliation

    Chemistry Research Laboratory, University of Oxford, Mansfield Road, Oxford, OX1 3TA, UK. christopher.schofield@chem.ox.ac.uk.



Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
Aspartyl/asparaginyl beta-hydroxylase
A, B
429Homo sapiensMutation(s): 0 
Gene Names: ASPHBAH
EC: 1.14.11.16
Find proteins for Q12797 (Homo sapiens)
Go to UniProtKB:  Q12797
NIH Common Fund Data Resources
PHAROS  Q12797
Entity ID: 2
MoleculeChainsSequence LengthOrganismDetails
ACA-LYS-ASP-GLY-LEU-GLY-GLU-TYR-THR-CYS-THR-SER-LEU-GLU-GLY-PHE-GLU
C
19Homo sapiensMutation(s): 0 
Protein Feature View is not available: No corresponding UniProt sequence found.
Small Molecules
Ligands 2 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
OGA
Query on OGA

Download CCD File 
A, B
N-OXALYLGLYCINE
C4 H5 N O5
BIMZLRFONYSTPT-UHFFFAOYSA-N
 Ligand Interaction
MN
Query on MN

Download CCD File 
A, B
MANGANESE (II) ION
Mn
WAEMQWOKJMHJLA-UHFFFAOYSA-N
 Ligand Interaction
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.29 Å
  • R-Value Free: 0.235 
  • R-Value Work: 0.211 
  • R-Value Observed: 0.212 
  • Space Group: P 1
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 49.472α = 103.97
b = 59.243β = 91.49
c = 95.665γ = 92.7
Software Package:
Software NamePurpose
SCALEPACKdata scaling
PHENIXrefinement
PDB_EXTRACTdata extraction
HKL-3000data reduction
PHASERphasing

Structure Validation

View Full Validation Report



Entry History & Funding Information

Deposition Data


Funding OrganizationLocationGrant Number
Wellcome TrustUnited Kingdom--

Revision History 

  • Version 1.0: 2019-05-08
    Type: Initial release
  • Version 1.1: 2019-11-06
    Changes: Data collection, Database references