00254nam a2200097Ia 4500008004100000040001100041245004400052260003500096300001600131300000900147251112s9999||||xx |||||||||||||| ||und||  aCNCLSA 0aArchives of Biochemistry and Biophysics  c1956bpergamon pressaNew York  aP. 805-1633  bV. 5