00307nam a2200121Ia 4500008004100000022001400041040001100055100001500066245003300081260004800114300001400162300000900176251112s9999||||xx |||||||||||||| ||und||  a0022-2836  aCNCLSA  aS. Brenner 0aJournal of Molecular Biology  cSeptember 5, 1988bAcademic PressaNew York  aP. 1-1138  bV.12