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. Author manuscript; available in PMC: 2022 Apr 8.
Published in final edited form as: Acc Chem Res. 2021 Aug 20;54(17):3462–3475. doi: 10.1021/acs.accounts.1c00359

Scheme 3. Putative Antigens Derived from Riboflavin Biosynthetic Intermediatesa.

Scheme 3.

aUnstable 3, 15, and 18 have molecular formulas matching the stimulatory ligand in the bacterial supernatant; 3 and 15 have near identical MS/MS fragments (violet). Data from ref 7. and ref 1.