The carboxylterminal part of the putative Berne virus polymerase is expressed by ribosomal frameshifting and contains sequence motifs which indicate that toro- and coronaviruses are evolutionarily related. Nucleic Acids Res (1990)

by E J Snijder, J A den Boon, P J Bredenbeek, M C Horzinek, R RiJnbrand, W Spaan