Title : Identification of phosphorylated butyrylcholinesterase in human plasma using immunoaffinity purification and mass spectrometry.

Pub. Date : 2012 Apr 20

PMID : 22444575






7 Functional Relationships(s)
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Protein Name
Organism
1 Paraoxon (diethyl 4-nitrophenyl phosphate) is an active metabolite of the common insecticide parathion and is acutely toxic due to the inhibition of cholinesterase (ChE) activity in the nervous systems. Paraoxon butyrylcholinesterase Homo sapiens
2 Paraoxon (diethyl 4-nitrophenyl phosphate) is an active metabolite of the common insecticide parathion and is acutely toxic due to the inhibition of cholinesterase (ChE) activity in the nervous systems. Paraoxon butyrylcholinesterase Homo sapiens
3 Paraoxon (diethyl 4-nitrophenyl phosphate) is an active metabolite of the common insecticide parathion and is acutely toxic due to the inhibition of cholinesterase (ChE) activity in the nervous systems. Paraoxon butyrylcholinesterase Homo sapiens
4 Paraoxon (diethyl 4-nitrophenyl phosphate) is an active metabolite of the common insecticide parathion and is acutely toxic due to the inhibition of cholinesterase (ChE) activity in the nervous systems. Paraoxon butyrylcholinesterase Homo sapiens
5 Using a purified BChE protein, we initially identified the exact phosphorylation site on the serine residue (S198) with a 108 Da modification by both MS/MS and accurately measured parent ion masses and quantified the extent of phosphorylation on S198 following paraoxon treatment to be >99.9%. Paraoxon butyrylcholinesterase Homo sapiens
6 Then, the phosphorylated BChE peptide in paraoxon-treated human plasma following immunoaffinity purification was successfully identified based on the accurate measured mass and retention time information initially obtained from the purified BChE protein. Paraoxon butyrylcholinesterase Homo sapiens
7 Then, the phosphorylated BChE peptide in paraoxon-treated human plasma following immunoaffinity purification was successfully identified based on the accurate measured mass and retention time information initially obtained from the purified BChE protein. Paraoxon butyrylcholinesterase Homo sapiens