to investigate the degree of similarity between picornavirus proteases , we cloned the genomic cdnas of an enterovirus , echovirus 9 ( strain barty ) , and two rhinoviruses , serotypes 1a and 14lp , and determined the nucleotide sequence of the region which , by analogy to poliovirus , encodes the protease .
C0030940
proteases
C0030946
protease