A human protein hydroxylase that accepts D-residues

Hwanho Choi, Adam P. Hardy, Thomas M. Leissing, Rasheduzzaman Chowdhury, Yu Nakashima, Wei Ge, Marios Markoulides, John S. Scotti, Philip A. Gerken, Helen Thorbjornsrud, Dahye Kang, Sungwoo Hong, Joongoo Lee, Michael A. McDonough, Hwangseo Park, Christopher J. Schofield*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

10 Scopus citations

Abstract

Factor inhibiting hypoxia-inducible factor (FIH) is a 2-oxoglutarate-dependent protein hydroxylase that catalyses C3 hydroxylations of protein residues. We report FIH can accept (D)- and (L)-residues for hydroxylation. The substrate selectivity of FIH differs for (D) and (L) epimers, e.g., (D)- but not (L)-allylglycine, and conversely (L)- but not (D)-aspartate, undergo monohydroxylation, in the tested sequence context. The (L)-Leu-containing substrate undergoes FIH-catalysed monohydroxylation, whereas (D)-Leu unexpectedly undergoes dihydroxylation. Crystallographic, mass spectrometric, and DFT studies provide insights into the selectivity of FIH towards (L)- and (D)-residues. The results of this work expand the potential range of known substrates hydroxylated by isolated FIH and imply that it will be possible to generate FIH variants with altered selectivities.

Original languageEnglish
Article number52
JournalCommunications Chemistry
Volume3
Issue number1
DOIs
StatePublished - 2020/12/01

ASJC Scopus subject areas

  • General Chemistry
  • Environmental Chemistry
  • Biochemistry
  • Materials Chemistry

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