Journal
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
Volume 55, Issue 29, Pages 8353-8357Publisher
WILEY-V C H VERLAG GMBH
DOI: 10.1002/anie.201602908
Keywords
alkylation; amino acids; bromodomain; electrostatic interactions; mass spectrometry; protein modifications
Categories
Funding
- Pfizer Neusentis
- EPSRC
- Cancer Research U.K.
- St. Hugh's College
- Department of Chemistry, University of Oxford
- Engineering and Physical Sciences Research Council [1100658] Funding Source: researchfish
Ask authors/readers for more resources
A range of isoxazole-containing amino acids was synthesized that displaced acetyl-lysine-containing peptides from the BAZ2A, BRD4(1), and BRD9 bromodomains. Three of these amino acids were incorporated into a histone H4-mimicking peptide and their affinity for BRD4(1) was assessed. Affinities of the isoxazole-containing peptides are comparable to those of a hyperacetylated histone H4-mimicking cognate peptide, and demonstrated a dependence on the position at which the unnatural residue was incorporated. An isoxazole-based alkylating agent was developed to selectively alkylate cysteine residues in situ. Selective monoalkylation of a histone H4-mimicking peptide, containing a lysine to cysteine residue substitution (K12C), resulted in acetyl-lysine mimic incorporation, with high affinity for the BRD4 bromodomain. The same technology was used to alkylate a K18C mutant of histone H3.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available