In the broadest sense, β-endorphin is primarily utilized in the body to reduce stress and maintain homeostasis. įunction of β-endorphin has been known to be associated with hunger, thrill, pain, maternal care, sexual behavior, and reward cognition. β-Endorphin is considered to be a part of the endogenous opioid and endorphin classes of neuropeptides all of the established endogenous opioid peptides contain the same N-terminal amino acid sequence, Tyr-Gly-Gly-Phe, followed by either -Met or -Leu. The first 16 amino acids are identical to α-endorphin. The amino acid sequence is: Tyr- Gly-Gly- Phe- Met- Thr- Ser- Glu- Lys-Ser- Gln-Thr- Pro- Leu- Val-Thr-Leu-Phe-Lys- Asn- Ala- Ile-Ile-Lys-Asn-Ala-Tyr-Lys-Lys-Gly-Glu (31 amino acids).
It is one of three endorphins that are produced in humans, the others of which include α-endorphin and γ-endorphin.
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