00305nam a2200109Ia 4500008004100000040001100041100002100052245003200073260006200105300001700167300001100184251112s9999||||xx |||||||||||||| ||und||  aCNCLSA  aNorton B. Gilula 4aThe Journal of Cell Biology  cDecember 1995bThe Rockefeller University PressaNew York  aP. 1125-1990  bV. 131