Name | 2-[[2-[[2-[[2-[[2-amino-3-(4-hydroxyphenyl)propanoyl]amino]acetyl]amino]acetyl]amino]-3-phenylpropanoyl]amino]-4-methylpentanamide |
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Synonyms |
Leu-enkephalinamide
Leu-enkephalin Tyr-Gly-Gly-Phe-Leu-NH2 H-YGGFL-NH2 Enkephalinamide-leu leucine-enkephalin amide tyrosylglycylglycylphenylalanylleucinamide [Leu5]-Enkephalin, amide |
Description | [Leu5]-Enkephalin, amide is a δ opioid receptor agonist. |
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Related Catalog | |
Target |
δ opioid receptor[1] |
In Vitro | [Leu5]-Enkephalin causes concentration-dependent, reversible inhibition of pelvic nerve-evoked contractions, with an IC50 value of 2.1 nM[2]. |
In Vivo | Levels of [Leu5]-Enkephalin are significantly increased in the nucleus raphe magnus (NRM) of rats 2 weeks after the injection of complete Freund's adjuvant (CFA) (1.02±0.2 pmol/mg protein) as compared with saline-treated rats (0.49±0.04 pmol/mg protein; p<0.01). Tissue levels of [Leu5]-Enkephalin are uniformly increased in the caudal ventrolateral periaqueductal gray (PAG) 4 hr (1.15±0.25 pmol/mg protein), 4 d (1.16±0.18 pmol/mg protein), and 2 weeks (1.18±0.17 pmol/mg protein) after the injection of CFA as compared with saline-treated rats (0.55±0.03 pmol/mg protein; p<0.05, all times). A smaller increase in the levels of [Leu5]-Enkephalin occurred in the rostral aspect of the ventrolateral PAG at all time points. Finally, levels of [Leu5]-Enkephalin are also increased in the contralateral microcellular tegmental nucleus 4 d after the injection of CFA (0.53±0.04 pmol/mg protein) compared with levels in saline-treated rats (0.38±0.02 pmol/mg protein; p<0.05)[1]. |
References |
Density | 1.254 g/cm3 |
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Boiling Point | 1012.8ºC at 760 mmHg |
Molecular Formula | C28H38N6O6 |
Molecular Weight | 554.63800 |
Flash Point | 566.3ºC |
Exact Mass | 554.28500 |
PSA | 205.74000 |
LogP | 2.20230 |
Index of Refraction | 1.586 |