Met-Enkephalin
Met-enkephalin is an endogenous opioid peptide that acts as an agonist at μ-opioid receptors (μORs) and δ-opioid receptors (δORs). Met-enkephalin exhibits neuromodulatory, antinociceptive/analgesic, antidepressant, and gastrointestinal motility modulating activities. Like other endogenous opioids, met-enkephalin modulates expression of opioid receptors and plays a role in reward/reinforcement signaling. Met-enkephalin is also involved in exercise-induced reversal of neuropathic pain and in animals undergoing the forced swim test, decreases immobility time. Met-enkephalin inhibits gastrointestinal muscle contractility, inhibiting motility and gastric emptying. Additionally, analogs of this peptide display anticancer and antiepileptic/anticonvulsant activities.
References PubMed ID::http://www.ncbi.nlm.nih.gov/pubmed/18943919
Cas No. |
58569-55-4 |
---|---|
Purity |
≥95% |
Formula |
C27H35N5O7S |
Formula Wt. |
573.67 |
IUPAC Name |
2-[[2-[[2-[[2-[[2-amino-3-(4-hydroxyphenyl)propanoyl]amino]acetyl]amino]acetyl]amino]-3-phenylpropanoyl]amino]-4-methylsulfanylbutanoic acid |
Synonym |
Metenkefalin, Opioid growth factor, 1-5-Adrenorphin (human) |
Appearance |
White to off white powder |
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Gredicak M, Supek F, Kralj M, et al. Computational structure-activity study directs synthesis of novel antitumor enkephalin analogs. Amino Acids. 2010 Apr;38(4):1185-91. PMID: 19639251.
Lee HK, Smith MD, Smith BJ, et al. Anticonvulsant Met-enkephalin analogues containing backbone spacers reveal alternative non-opioid signaling in the brain. ACS Chem Biol. 2009 Aug 21;4(8):659-71. PMID: 19634861.