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P5296

Sigma-Aldrich

CTOP

≥97% (HPLC)

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About This Item

Formula empirica (notazione di Hill):
C50H67N11O11S2
Numero CAS:
103429-31-8
Peso molecolare:
1062.26
Numero MDL:
MFCD00076708
Codice UNSPSC:
12352200
ID PubChem:
329820226
NACRES:
NA.77

Saggio

≥97% (HPLC)

Forma fisica

powder

N° accesso UniProt

Q64387

Temperatura di conservazione

−20°C

Stringa SMILE

C[C@@H](O)[C@H](NC(=O)[C@H]1NC(=O)[C@@H](NC(=O)[C@H](CCCN)NC(=O)[C@@H](Cc2c[nH]c3ccccc23)NC(=O)[C@H](Cc4ccc(O)cc4)NC(=O)[C@H](CSSC1(C)C)NC(=O)[C@H](N)Cc5ccccc5)[C@@H](C)O)C(N)=O

InChI

1S/C50H67N11O11S2/c1-26(62)39(42(53)65)59-49(72)41-50(3,4)74-73-25-38(58-43(66)33(52)21-28-11-6-5-7-12-28)47(70)56-36(22-29-16-18-31(64)19-17-29)45(68)57-37(23-30-24-54-34-14-9-8-13-32(30)34)46(69)55-35(15-10-20-51)44(67)60-40(27(2)63)48(71)61-41/h5-9,11-14,16-19,24,26-27,33,35-41,54,62-64H,10,15,20-23,25,51-52H2,1-4H3,(H2,53,65)(H,55,69)(H,56,70)(H,57,68)(H,58,66)(H,59,72)(H,60,67)(H,61,71)/t26-,27-,33-,35+,36+,37-,38+,39+,40+,41-/m1/s1
PZWWYAHWHHNCHO-FGHAYEPSSA-N

Informazioni sul gene

mouse ... Pnoc(18155)

Amino Acid Sequence

Phe-Cys-Tyr-Trp-Orn-Thr-Pen-Thr-NH2 [Disulfide Bridge: 2-7]

Descrizione generale

D-Pen-Cys-Tyr-D-Trp-Orn-Thr-Pen-Thr-NH2 (CTOP) is a selective cyclic μ-opioid receptor antagonist.

Applicazioni

CTOP has been used:
  • to study the anxiogenic effects induced by CTOP in mice and rat.
  • to study the effect of μ-opioid antagonist, CTOP on the bovine milk-derived LF (BLF)-induced analgesia.
  • to determine whether μ-opioid receptors act cooperatively with 5-hydroxytryptamine (5-HT1A) receptors to regulate the behaviors generated in the elevated T-maze (ETM).

Azioni biochim/fisiol

D-Pen-Cys-Tyr-D-Trp-Orn-Thr-Pen-Thr-NH2 (CTOP) inhibits acute morphine-induced hypermotility and analgesic effect of morphine in a dose-dependent manner in vivo.
Selective ligand for μ-opioid receptors.

Linkage

Somatostatin analog

Codice della classe di stoccaggio

11 - Combustible Solids

Classe di pericolosità dell'acqua (WGK)

WGK 3

Punto d’infiammabilità (°F)

Not applicable

Punto d’infiammabilità (°C)

Not applicable

Dispositivi di protezione individuale

Eyeshields, Gloves, type N95 (US)

Certificati d'analisi (COA)

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G T C Wong et al.
Acta anaesthesiologica Scandinavica, 54(4), 510-518 (2009-11-03)
Ischemic pre- or post-conditioning of the heart has been shown to involve opioid receptors. Remifentanil, an ultra-short-acting selective mu opioid receptor agonist in clinical use, pre-conditions the rat heart against ischemia-reperfusion injury. This study investigates whether remifentanil post-conditioning is also
Céline Heinl et al.
The Journal of neuroscience : the official journal of the Society for Neuroscience, 31(46), 16748-16756 (2011-11-18)
In addition to analgesia, opioids may also produce paradoxical pain amplification [opioid-induced hyperalgesia (OIH)] either on abrupt withdrawal or during continuous long-term application. Here, we assessed antinociceptive and pronociceptive effects of three clinically used opioids at C-fiber synapses in the
Cooperative regulation of anxiety and panic-related defensive behaviors in the rat periaqueductal grey matter by 5-HT1A and ?-receptors.
Roncon CM
Journal of Psychopharmacology, 27(12), 1141-1148 (2013)
Garrett J Gross et al.
American journal of physiology. Heart and circulatory physiology, 298(6), H2201-H2207 (2010-04-20)
We previously demonstrated that several epoxyeicosatrienoic acids (EETs) produce reductions in myocardial infarct size in rats and dogs. Since a recent study demonstrated the release of opioids in mediating the antinociceptive effect of 14,15-EET, we hypothesized that endogenous opioids may
Central effects of the potent and highly selective mu opioid antagonist D-Phe-Cys-Tyr-D-Trp-Orn-Thr-Pen-Thr-NH2 (CTOP) in mice.
Gulya K
European Journal of Pharmacology, 150(3), 355-360 (1988)
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