here we present further characterization of the somatostatin precursors by ( i ) hybrid selection translation of specific preprosomatostatin mrnas , ( ii ) in vitro proteolytic processing of the nascent preprosomatostatins synthesized from hybrid-selected mrnas , ( iii ) comparison of their tryptic peptides , and ( iv ) partial amino-terminal sequence analysis of the signal peptide regions .
C0037659
somatostatin
C1335871
preprosomatostatin