A FLUOROMETRIC ASSAY FOR CHOLINE ACETYLTRANSFERASE and ITS USE IN THE PURIFICATION OF THE ENZYME FROM HUMAN PLACENTA

Louis B. Hersh, Barbara Coe, Lynette Casey

Research output: Contribution to journalArticlepeer-review

40 Scopus citations

Abstract

Abstract— A fluorometric assay for choline acetyltransferase has been developed. This assay is based on coupling the choline acetyltransferase dependent formation of acetyl‐CoA from acetylcholine and coenzyme A, to the reactions catalyzed by the enzymes citrate synthase and malic dehydrogenase. Although this assay is not as sensitive as previously described radiometric assays, it can be conveniently used during enzyme purification. Employing this assay method, choline acetyltransferase has been purified from human placenta to a specific activity of 92.7 μmol acetylcholine formed/min/mg protein.

Original languageEnglish
Pages (from-to)1077-1085
Number of pages9
JournalJournal of Neurochemistry
Volume30
Issue number5
DOIs
StatePublished - May 1978

ASJC Scopus subject areas

  • Biochemistry
  • Cellular and Molecular Neuroscience

Fingerprint

Dive into the research topics of 'A FLUOROMETRIC ASSAY FOR CHOLINE ACETYLTRANSFERASE and ITS USE IN THE PURIFICATION OF THE ENZYME FROM HUMAN PLACENTA'. Together they form a unique fingerprint.

Cite this