Preferred Label : Acetaminophen-Cysteine Protein Adduct;
NCIt synonyms : APAP-CYS; Acetaminophen-Cysteine; Acetaminophen Protein Adduct; PPA; Paracetamol-Cysteine; Paracetamol Protein Adduct;
NCIt definition : A modified protein, usually glutathione, where oxidized acetaminophen is bound to
the sulfhydryl group of cysteine residues. The presence of acetaminophen-cysteine
or its proteolyzed product 3-para cysteinyl acetaminophen in a sample is a specific
biomarker for acetaminophen exposure and increased concentrations of these adducts
may be associated with acetaminophen toxicity.;