in the anterior lobe of newborn rats , however , the ratio of beta-lipotropin/beta-end resembled that of adults , and more than 80 % of beta-end-sized ir-material was found to consist of nonacetylated ( and therefore opiate-active ) beta-end- ( 1-31 ) , as in adults , suggesting that the enzymatic system responsible for processing of pomc to beta-lipotropin and beta-end is already mature at birth .
C0033195
pomc
C0023832
beta-lipotropin