00281nam a2200109Ia 4500008004100000022001400041040001100055100001500066245003300081260004600114300001100160251112s9999||||xx |||||||||||||| ||und||  a0022-2836  aCNCLSA  aS. Brenner 0aJournal of Molecular Biology  cJanuary 5, 1990bAcademic PressaNew York  bV. 213