Utilization of (32P) Soman for Measurement of Acetylcholinesterase in Brain Tissues
Abstract
Acetylcholinesterase (acetylcholine hydrolase, EC 3.1.1.7) activity in brain tissues of the dog was measured before and after inhibition with 32P- labeled pinacolyl methylphosphonofluoridate (Soman). A high correlation was obtained between uninhibited enzyme activity and soman-derived radiophosphorus bound to the tissues as methyl (32P) phosphonate. The methylphosphonate for 100% inhibition was taken equivalent to the catalytic sites. Turnover numbers calculated from the ratio of acetylcholine hydrolysis to catalytic sites approached values yielded by eel acetylcholinesterase.
Document Details
- Document Type
- Technical Report
- Publication Date
- Apr 01, 1972
- Accession Number
- AD0741015
Entities
People
- Joseph H. Fleisher
- Larrel W. Harris
- Norman C. Thomas