it is concluded that this arg-lys esteropeptidase from the brain cortex may be involved in the in vivo processing of the somatostatin-28 fragment of prosomatostatin into somatostatin-14 , the former species being an obligatory intermediate in a two-step proteolytic mechanism leading to somatostatin-14 .
C0074854
somatostatin-28
C0037659
somatostatin-14