Extended Data Fig. 9: Exemplar histone LC-MS/MS spectrum.

Exemplar MS spectrum of peptide 19–27 (from a sample treated under the condition ‘elevated propionate signalling’) showing 13C1-propionylation at K23.

Exemplar MS spectrum of peptide 19–27 (from a sample treated under the condition ‘elevated propionate signalling’) showing 13C1-propionylation at K23.