| HPPK | 6-hydroxymethyl-7,8-dihydropterin pyrophosphokinase |
| TB | Tuberculosis |
| Mtb | Mycobacterium tuberculosis |
| MDR-TB | multidrug-resistant TB |
| MS | mass spectrometry |
| CID | collision-induced dissociation |
| PPT | protopanaxatriol |
| PPD | protopanaxadiol |
| SSGCID | Seattle Structural Genomics Center for Infectious Diseases |
| TOF | time-of-flight |