Other references on eukaryotic translation start sites are: Kozak, M. 1991. Structural features in eukaryotic mRNAs that modulate the initiation of translation. J. Biol. Chem. 266:19867-19870. Cavener, D. R. and Ray, S. C. 1991. Eukaryotic start and stop translation sites. Nuc. Acids Res. 19:3185-3192.