Abstract
The chromatographic behavior of L-myosin on diethylaminoethylcellulose was investigated at pH 7.6 and 8.2. Evidence is presented for a regular variation in the specific adenoeine triphos phatase activity of myosin fractions eluted from diethylaminoethyl-cellulose. Partial separation of 5[image]-adenylic deaminase activity was obtained by chromatography at pH 8.2. Myosin was prepared with less than 0.002% of P and virtually free from the ribonucleic acid invariably present in L-myosin preparations.