1. Institut Jacques Monod du C.N.R.S. et de l''Université Paris 7 T.43, 2 place Jussieu, F-75251, Paris Cedex 05 France;2. Biocenter, Klingelbergstrasse 70, CH-4055 Basel Switzerland
Abstract:
Translation of exogenous mRNAs in micrococcal nuclease-treated extracts from Ehrlich ascites tumor cells is greatly stimulated by the addition of crude initiation factors or initiation factors eIF-2B and eIF-2 containing eIF-2B. The requirement for exogenous eIF-2B in micrococcal nuclease-treated extracts does not result from either loss or enhanced phosphorylation of eIF-2 during incubation.