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Merck

E7384

[D-Ala2, N-Me-Phe4, Gly5-ol]-Enkephalin acetate salt

≥97% (HPLC), μ-opioid receptors agonist

Synonym(s):

DAGO, DAMGO, Tyr-D-Ala-Gly-N-methyl-Phe-Gly-ol

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About This Item

Empirical Formula (Hill Notation):
C26H35N5O6
CAS Number:
100929-53-1
Molecular Weight:
513.59
UNSPSC Code:
12352209
PubChem Substance ID:
329799071
NACRES:
NA.32
MDL number:
MFCD00133215

Product Name

[D-Ala2, N-Me-Phe4, Gly5-ol]-Enkephalin acetate salt, ≥97% (HPLC)

SMILES string

CC(O)=O.C[C@@H](NC(=O)[C@@H](N)Cc1ccc(O)cc1)C(=O)NCC(=O)N(C)[C@@H](Cc2ccccc2)C(=O)NCCO

InChI key

XZZYKCKUDLGXJA-NJUGUJQKSA-N

InChI

1S/C26H35N5O6.C2H4O2/c1-17(30-25(36)21(27)14-19-8-10-20(33)11-9-19)24(35)29-16-23(34)31(2)22(26(37)28-12-13-32)15-18-6-4-3-5-7-18;1-2(3)4/h3-11,17,21-22,32-33H,12-16,27H2,1-2H3,(H,28,37)(H,29,35)(H,30,36);1H3,(H,3,4)/t17-,21+,22+;/m1./s1

assay

≥97% (HPLC)

storage temp.

−20°C

Quality Level

100

Gene Information

human ... OPRM1(4988)
mouse ... OPRM1(18390)
rat ... OPRM1(25601)

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Application

[D-Ala2, N-Me-Phe4, Gly5-ol]-Enkephalin acetate salt or DAMGO has been used:
  • for use as a positive control in the assay of G-protein activation with μ-opioid receptor, to assay the inhibition of cAMP inhibition by DAMGO
  • for the determination of the suppression of contraction by opioid receptors
  • to determine whether the peripheral application of DAMGO suppresses the hypertonic saline (HS)-induced masseter nociception in slightly anaesthetized rats

Biochem/physiol Actions

Enkephalin analog that is a selective agonist at μ-opioid receptors.

General description

[D-Ala2, N-Me-Phe4, Gly5-ol]-Enkephalin acetate salt or DAMGO is a full agonist of the μ-opioid receptor. μ-opioid receptor is encoded by the OPRM1 gene, which has a predominant expression in reward-processing areas of brain. It acts as a receptor for endogenous opioids such as β-endorphin, encephalin, as well as foreign opioids such as morphine, heroin, and methadone.

Other Notes

2024 CiteAb Award Winner for Supplier Succeeding in Parkinson′s Research

Packaging

Bottomless glass bottle. Contents are inside inserted fused cone.

Storage Class

11 - Combustible Solids

wgk

WGK 3

flash_point_f

Not applicable

flash_point_c

Not applicable

ppe

Eyeshields, Gloves, type N95 (US)

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Certificates of Analysis (COA)

Lot/Batch Number
BCCM7967
BCCG3203
BCCD3810
BCBW8370
BCBT7410

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Javier Llorente et al.
The European journal of neuroscience, 36(12), 3636-3642 (2012-09-26)
There is considerable controversy over whether μ-opioid receptor (MOPr) desensitization is homologous or heterologous and over the mechanisms underlying such desensitization. In different cell types MOPr desensitization has been reported to involve receptor phosphorylation by various kinases, including G-protein-coupled receptor
Frank J Meye et al.
The Journal of neuroscience : the official journal of the Society for Neuroscience, 32(46), 16120-16128 (2012-11-16)
μ-Opioid receptors (MORs) in the ventral tegmental area (VTA) are pivotally involved in addictive behavior. While MORs are typically activated by opioids, they can also become constitutively active in the absence of any agonist. In the current study, we present
Ken W K Lee et al.
Journal of psychiatry & neuroscience : JPN, 40(1), 38-45 (2014-10-01)
Preference for fatty foods is a risk factor for obesity. It is a complex behaviour that involves the brain reward system and is regulated by genetic and environmental factors, such as the opioid receptor mu-1 gene (OPRM1) and prenatal exposure
Raza Qazi et al.
Nature biomedical engineering, 3(8), 655-669 (2019-08-07)
Both in vivo neuropharmacology and optogenetic stimulation can be used to decode neural circuitry, and can provide therapeutic strategies for brain disorders. However, current neuronal interfaces hinder long-term studies in awake and freely behaving animals, as they are limited in
B Driessen et al.
British journal of pharmacology, 108(2), 443-447 (1993-02-01)
1. Effects of opioid agonists on the purinergic and adrenergic components of neurogenic contractions and in some experiments on transmitter overflow were studied in the mouse isolated vas deferens. 2. When the vas deferens was stimulated every 2 min by
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