Probing the mycobacterial trehalome with bioorthogonal chemistry

Benjamin M. Swarts, Cynthia M. Holsclaw, John C. Jewett, Marina Alber, Douglas M. Fox, M. Sloan Siegrist, Julie A. Leary, Rainer Kalscheuer, Carolyn R. Bertozzi

Research output: Contribution to journalArticlepeer-review

110 Scopus citations


Mycobacteria, including the pathogen Mycobacterium tuberculosis, use the non-mammalian disaccharide trehalose as a precursor for essential cell-wall glycolipids and other metabolites. Here we describe a strategy for exploiting trehalose metabolic pathways to label glycolipids in mycobacteria with azide-modified trehalose (TreAz) analogues. Subsequent bioorthogonal ligation with alkyne-functionalized probes enabled detection and visualization of cell-surface glycolipids. Characterization of the metabolic fates of four TreAz analogues revealed unique labeling routes that can be harnessed for pathway-targeted investigation of the mycobacterial trehalome.

Original languageEnglish
Pages (from-to)16123-16126
Number of pages4
JournalJournal of the American Chemical Society
Issue number39
StatePublished - Oct 3 2012


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