five peptides derived from pro-corticotropin/endorphin ( pro-acth/endorphin ) , the pituitary corticotroph cell prohormone , were bioassayed with isolated rat adrenocortical cells : alpha- and beta-melanotropin , beta-lipotropin , beta-endorphin , and the amino-terminal region of pro-acth/endorphin known as `` '' 16k fragment . '' ''
C0023832
beta-lipotropin
C0033195
pro-acth/endorphin