Contulakin G
Contulakin G is an O-glycosylated invertebrate neurotensin. Contulakin-G is a weaker agonist for the neurotensin receptor. Contulakin G is also a potent antinociceptive agent.
For research use only. We do not sell to patients.
- CAS No.: 229180-41-0
- Formula: C88H140N20O37
- Molecular Weight:2070.17
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Storage:
Please store the product under the recommended conditions in the Certificate of Analysis.
To place orders, for customer services and technical support, please contact: MedChemExpress USA
Tel: 609-228-6898 E-mail: [email protected] [email protected]
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Biological Activity
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Chemical Information
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Solvent & Solubility
- Purity & Documentation
- References
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Help & FAQs
Biological Activity
Contulakin G (0-3 nmoL, Intrathecally) significantly decreases flinching behavior in rats[2].
Contulakin G (50-500 nmoL, Intrathecally) produces a dose-dependent increase in the thermally evoked skin twitch latency by 30 min after administration in dogs[2].
MedChemExpress (MCE) has not independently confirmed the accuracy of these methods. They are for reference only.
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Animal Model:Male Holtzman rats (300-375 g)[2]
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Dosage:0.03, 0.1, 0.3, and 3 nmol
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Administration:Intrathecally, administered as a 10-μL bolus followed by a 10-μL saline flush
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Result:Produced a significant decrease in flinching in all phases of the formalin test in rats.
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Animal Model:Purpose-bred beagle dogs (9-12 kg)[2]
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Dosage:50, 150, or 500 nmol
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Administration:Intrathecally
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Result:Produced a dose-dependent increase in the thermally evoked skin twitch latency at 30 min after dosing in dogs, which reached statistical difference as compared to vehicle at 500 nmol.
Chemical Information
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CAS No. 229180-41-0
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Molecular Weight 2070.17
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Formula C88H140N20O37
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Shipping
Room temperature in continental US; may vary elsewhere.
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Storage
Please store the product under the recommended conditions in the Certificate of Analysis.
Solvent & Solubility
H2O
Peptide Solubility and Storage Guidelines:
1. Calculate the length of the peptide.
2. Calculate the overall charge of the entire peptide according to the following table:
| Contents | Assign value | |
|---|---|---|
| Acidic amino acid | Asp (D), Glu (E), and the C-terminal -COOH. | -1 |
| Basic amino acid | Arg (R), Lys (K), His (H), and the N-terminal -NH2 | +1 |
| Neutral amino acid | Gly (G), Ala (A), Leu (L), Ile (I), Val (V), Cys (C), Met (M), Thr (T), Ser (S), Phe (F), Tyr (Y), Trp (W), Pro (P), Asn (N), Gln (Q) | 0 |
3. Recommended solution:
| Overall charge of peptide | Details |
|---|---|
| Negative (<0) |
1. Try to dissolve the peptide in water first. 2. If water fails, add NH4OH (<50 μL). 3. If the peptide still does not dissolve, add DMSO (50-100 μL) to solubilize the peptide. |
| Positive (>0) |
1. Try to dissolve the peptide in water first. 2. If water fails, try dissolving the peptide in a 10%-30% acetic acid solution. 3. If the peptide still does not dissolve, try dissolving the peptide in a small amount of DMSO. |
| Zero (=0) |
1. Try to dissolve the peptide in organic solvent (acetonitrile, methanol, etc.) first. 2. For very hydrophobic peptides, try dissolving the peptide in a small amount of DMSO, and then dilute the solution with water to the desired concentration. |
Purity & Documentation
References
[1]. Lee HK, et al. A marine analgesic peptide, Contulakin-G, and neurotensin are distinct agonists for neurotensin receptors: uncovering structural determinants of desensitization properties. Front Pharmacol. 2015 Feb 10;6:11. [Content Brief]
[2]. Allen JW, et al. An assessment of the antinociceptive efficacy of intrathecal and epidural contulakin-G in rats and dogs. Anesth Analg. 2007 Jun;104(6):1505-13, table of contents. [Content Brief]
Calculators
Concentration (start) × Volume (start) = Concentration (final) × Volume (final)
Contulakin G Related Classifications
HY-P0066 Related Classifications
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