Ontology highlight
ABSTRACT:
SUBMITTER: Wiedner SD
PROVIDER: S-EPMC4023867 | biostudies-literature | 2014 Mar
REPOSITORIES: biostudies-literature
Wiedner Susan D SD Anderson Lindsey N LN Sadler Natalie C NC Chrisler William B WB Kodali Vamsi K VK Smith Richard D RD Wright Aaron T AT
Angewandte Chemie (International ed. in English) 20140206 11
A multimodal activity-based probe for targeting acidic organelles was developed to measure subcellular native enzymatic activity in cells by fluorescence microscopy and mass spectrometry. A cathepsin-reactive warhead conjugated to a weakly basic amine and a clickable alkyne, for subsequent appendage of a fluorophore or biotin reporter tag, accumulated in lysosomes as observed by structured illumination microscopy (SIM) in J774 mouse macrophage cells. Analysis of in vivo labeled J774 cells by mas ...[more]