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E3888

Sigma-Aldrich

[D-Pen2,5]-Enkephalin hydrate

≥95% (HPLC)

Synonym(s):

DPDPE

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About This Item

Empirical Formula (Hill Notation):
C30H39N5O7S2 · xH2O
Molecular Weight:
645.79 (anhydrous basis)
MDL number:
MFCD00076430
UNSPSC Code:
12352209
PubChem Substance ID:
329799055
NACRES:
NA.32

Quality Level

200

Assay

≥95% (HPLC)

storage temp.

−20°C

SMILES string

CC1(C)SSC(C)(C)[C@@H](NC(=O)[C@@H](N)Cc2ccc(O)cc2)C(=O)NCC(=O)N[C@@H](Cc3ccccc3)C(=O)N[C@H]1C(O)=O

InChI

1S/C30H39N5O7S2/c1-29(2)23(34-25(38)20(31)14-18-10-12-19(36)13-11-18)27(40)32-16-22(37)33-21(15-17-8-6-5-7-9-17)26(39)35-24(28(41)42)30(3,4)44-43-29/h5-13,20-21,23-24,36H,14-16,31H2,1-4H3,(H,32,40)(H,33,37)(H,34,38)(H,35,39)(H,41,42)/t20-,21-,23-,24-/m0/s1

InChI key

MCMMCRYPQBNCPH-WMIMKTLMSA-N

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Amino Acid Sequence

Tyr-Pen-Gly-Phe-Pen [Disulfide Bridge: 2-5]

General description

[D-Pen2,5]-Enkephalin hydrate, also called DPDPE, is a peptide and acts as a δ1-opioid receptor agonist. Opioid receptors are divided into three types called, μ, κ and δ, depending upon their ligands. These ligands are peptides and are classified as enkephalins, endorphins and dynorphins.

Application

[D-Pen2,5]-Enkephalin hydrate (DPDPE) has been used to study the pharmacodynamic and pharmacokinetic capabilities of polyethylene glycol (PEG) conjugate of DPDPE in rodents. It has been used to study the tendency of opiate self-administration in male Long-Evans rats, in ventral tegmental area (VTA).

Biochem/physiol Actions

Antinociceptive activity mediated through the δ1 receptor while the modulatory activity is mediated through the δ2 receptor. Tritiated [D-Pen2,5]-enkephalin is used as a δ1 ligand.

Other Notes

Lyophilized from 0.1% TFA in H2O

Storage Class Code

11 - Combustible Solids

WGK

WGK 3

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

Certificates of Analysis (COA)

Search for Certificates of Analysis (COA) by entering the products Lot/Batch Number. Lot and Batch Numbers can be found on a product’s label following the words ‘Lot’ or ‘Batch’.

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Dinah Nockemann et al.
EMBO molecular medicine, 5(8), 1263-1277 (2013-07-03)
The use of opioid agonists acting outside the central nervous system (CNS) is a promising therapeutic strategy for pain control that avoids deleterious central side effects such as apnea and addiction. In human clinical trials and rat models of inflammatory
S Allouche et al.
Biochemical pharmacology, 59(8), 915-925 (2000-02-29)
The two pharmacological delta-opioid receptor subtypes, delta1 and delta2, have been defined on the basis of pharmacological tools but remain to be characterized at the molecular level, since only a single cDNA has been cloned. The present study aimed to
D C Jewett et al.
Psychopharmacology, 127(3), 225-230 (1996-10-01)
The present study assessed the discriminative stimulus effects of the delta-opioid agonist [D-Pen2-D-Pen5]enkephalin (DPDPE) in pigeons. Food-restricted pigeons were trained to discriminate between i.c.v injections of 100 micrograms [D-Pen2-D-Pen5]enkephalin (DPDPE) and saline in a two-key operant procedure; acquisition of discriminative
K Akiyama et al.
Proceedings of the National Academy of Sciences of the United States of America, 82(8), 2543-2547 (1985-04-01)
Specific binding properties of the tritium-labeled delta opiate receptor agonist [3H][2-D-penicillamine, 5-D-penicillamine]enkephalin [( 3H][D-Pen2, D-Pen5]enkephalin) were characterized in the rat brain and in a mouse neuroblastoma-rat glioma hybrid cell line (NG 108-15). Saturation isotherms of [3H][D-Pen2, D-Pen5]enkephalin binding to rat
Yu-Hua Wang et al.
Scientific reports, 8(1), 14087-14087 (2018-09-22)
Dezocine is becoming dominated in China market for relieving moderate to severe pain. It is believed that Dezocine's clinical efficacy and little chance to provoke adverse events during the therapeutic process are mainly attributed to its partial agonist activity at
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