the fact that lambdalph , rather than betalph , is the predominant form in plasma suggests that the enkephalin-endorphin opiate peptides , which are contained in the `` '' missing '' '' 59-91 sequence from the betalph precursor of lambdalph , may be secreted in parallel with acth under both physiological and pathological conditions in man .
C0014298
enkephalin
C0205753
endorphin