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
  • Primary Citation of Related Structures:  
    5APA, 5JZA, 5JZ6, 5JZ8, 5JZU, 5JQY, 6RK9

  • 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 epidermal growth factor-like domains (EGFDs) ...

    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: 
(by identity cutoff)  |  Structure
Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
Aspartyl/asparaginyl beta-hydroxylase A, B429Homo sapiensMutation(s): 0 
Gene Names: ASPH, BAH
EC: 1.14.11.16
Find proteins for Q12797 (Homo sapiens)
Explore Q12797 
Go to UniProtKB:  Q12797
NIH Common Fund Data Resources
PHAROS:  Q12797
GTEx:  ENSG00000198363
Protein Feature View
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  • Reference Sequence
  • Find similar proteins by:  Sequence   |   Structure
Entity ID: 2
MoleculeChainsSequence LengthOrganismDetailsImage
ACA-LYS-ASP-GLY-LEU-GLY-GLU-TYR-THR-CYS-THR-SER-LEU-GLU-GLY-PHE-GLU C19Homo sapiensMutation(s): 0 
Protein Feature View
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  • Reference Sequence
Small Molecules
Ligands 2 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
OGA
Query on OGA
Download Ideal Coordinates CCD File 
A, B
N-OXALYLGLYCINE
C4 H5 N O5
BIMZLRFONYSTPT-UHFFFAOYSA-N		 Ligand Interaction
MN
Query on MN
Download Ideal Coordinates 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

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Entry History & Funding Information

Deposition Data

Funding OrganizationLocationGrant Number
Wellcome TrustUnited Kingdom--

Revision History  (Full details and data files)

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