evidence from the translation of rat liver rna in the presence of dog pancreas microsomes , from the translation of rat liver polysomes , and from tunicamycin-treated rat hepatocytes established that cleavage of the signal peptide of pre-alpha 1at results in the formation of a 42,000-da protein , the polypeptide backbone of mature alpha 1at .
C0035668
rna
C0597295
formation