2. GPCR/G Protein Neuronal Signaling
  3. Opioid Receptor
  4. CTAP

CTAP is a potent, highly selective, and BBB penetrant μ opioid receptor antagonist, with an IC50 of 3.5 nM. CTAP displays over 1200-fold selectivity over δ opioid (IC50=4500 nM) and somatostatin receptors. CTAP can be used for the study of L-DOPA-induced dyskinesia (LID) and opiate overdose or addiction.

For research use only. We do not sell to patients.

Custom Peptide Synthesis

CTAP Chemical Structure

CTAP Chemical Structure

CAS No. : 103429-32-9

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CTAP Related Antibodies

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Description

CTAP is a potent, highly selective, and BBB penetrant μ opioid receptor antagonist, with an IC50 of 3.5 nM. CTAP displays over 1200-fold selectivity over δ opioid (IC50=4500 nM) and somatostatin receptors. CTAP can be used for the study of L-DOPA-induced dyskinesia (LID) and opiate overdose or addiction[1][2].

IC50 & Target

μ Opioid Receptor/MOR

3.5 nM (IC50)

δ Opioid Receptor/DOR

4500 nM (IC50)

In Vivo

CTAP (0-1 mg/kg, IP, single) blocks morphine’s antinociceptive effect[1].
CTAP (10 mg/kg; IP, single) has no effect on L-DOPA-induced limb, axial, orolingual, or locomotor abnormal involuntary movements[1].
CTAP is stable in the blood and serum of rats (T1/2 > 500 min), showing that the structure of this peptide offers enzymatic resistance[2].
CTAP is extensively protein-bound to albumin in the perfusion medium (68.2%) and to proteins in rat serum (84.2%)[2].

MedChemExpress (MCE) has not independently confirmed the accuracy of these methods. They are for reference only.

Animal Model: Male Sprague-Dawley rats[1]
Dosage: 0, 0.1, 0.5, 1 mg/kg
Administration: IP, single
Result: Completely blocked morphine’s antinociceptive effect at 0.5 or 1 mg/kg.
Molecular Weight

1104.30

Formula

C51H69N13O11S2
CAS No.
Sequence

{d-Phe}-Cys-Tyr-{d-Trp}-Arg-Thr-{Pen}-Thr-NH2 (Disulfide bridge:Cys2-Pen7)
Sequence Shortening

{d-Phe}-CY-{d-Trp}-RT-{Pen}-T-NH2 (Disulfide bridge:Cys2-Pen7)
Shipping

Room temperature in continental US; may vary elsewhere.
Storage

Please store the product under the recommended conditions in the Certificate of Analysis.
Purity & Documentation
References
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CTAP Related Classifications

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The dilution calculator equation

Concentration (start) × Volume (start) = Concentration (final) × Volume (final)

This equation is commonly abbreviated as: C1V1 = C2V2

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× = ×
C1   V1   C2   V2
Help & FAQs
  • Do most proteins show cross-species activity?

    Species cross-reactivity must be investigated individually for each product. Many human cytokines will produce a nice response in mouse cell lines, and many mouse proteins will show activity on human cells. Other proteins may have a lower specific activity when used in the opposite species.

Keywords:

CTAP103429-32-9Opioid Receptorsomatostatin receptorμ-opioid ReceptorL-DOPADyskinesiaParkinson’s diseasePDInhibitorinhibitorinhibit

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