Prs ADP-ribosylating toxin
UniProtKB accession: A0A0C5XL88
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Go to UniProtKB: A0A0C5XL88
UniProtKB description: Toxic component of a type II toxin-antitoxin (TA) system. Expression in E.coli inhibits cell growth; bacteriostasis is neutralized by expression of cognate antitoxin ParS. ADP-ribosylates E.coli ribose-phosphate pyrophosphokinase (RPPK, prs) using NAD(+) in vitro; ADP-ribosylates RPPK on 'Lys-182' and 'Ser-202'. Cannot use NADP(+). Also auto-ADP-ribosylates in vitro; in the presence of RPPK auto-ADP-ribosylation decreases.
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