Definition: One of the three major groups of endogenous opioid peptides. They are large peptides derived from the PRO-OPIOMELANOCORTIN precursor. The known members of this group are alpha-, beta-, and gamma-endorphin. The term endorphin is also sometimes used to refer to all opioid peptides, but the narrower sense is used here; OPIOID PEPTIDES is used for the broader group.
beta-casomorphin 5 [ (D-Tyr(1))CM-5,4-Pro-casomorphin,D-Pro(4)-casomorphin,L-Pro(4)-casomorphin,Tyr-Pro-Phe-Pro-Gly,beta-casomorphin 5 monohydrochloride,beta-casomorphin 5, (D-Pro(2,4)HCl)-isomer,beta-casomorphin 5, D-Pro(2,4)-isomer,beta-casomorphin 5, D-Pro(4)-isomer,casomorphin, Pro(4)-,deprolorphin,tyrosyl-prolyl-phenylalanyl-prolylglycine ] see also related record for beta-casomorphins