MS-Based in Situ Proteomics Reveals AMPylation of Host Proteins during Bacterial Infection.

ABSTRACT: Bacteria utilize versatile strategies to propagate infections within human cells, e.g., by the injection of effector proteins, which alter crucial signaling pathways. One class of such virulence-associated proteins is involved in the AMPylation of eukaryotic Rho GTPases with devastating effects on viability. In order to get an inventory of AMPylated proteins, several technologies have been developed. However, as they were designed for the analysis of cell lysates, knowledge about AMPylation targets in living cells is largely lacking. Here, we implement a chemical-proteomic method for deciphering AMPylated host proteins in situ during bacterial infection. HeLa cells treated with a previously established cell permeable pronucleotide probe (pro-N6pA) were infected with

SUBMITTER: Rauh T 

PROVIDER: S-EPMC9558369 | biostudies-literature | 2020 Dec

REPOSITORIES: biostudies-literature