Cyclo(glycyl-L-leucyl)
Based on 1 Customer Validation
Cyclo(glycyl-L-leucyl) (Cyclo(leu-gly)), a neuropeptide, down-regulates dopamine (DA) receptors and attenuates dopaminergic supersensitivity. Cyclo(glycyl-L-leucyl) inhibits the development of Morphine induced pain relief as well as dopamine receptor supersensitivity in rats. Cyclo(glycyl-L-leucyl) has the potential for the prevention of tardive and/or L-DOPA (HY-N0304)-induced dyskinesias.
For research use only. We do not sell to patients.
- Purity: 99.75%
- CAS No.: 5845-67-0
- Formula: C8H14N2O2
- Molecular Weight:170.21
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Storage:
Sealed storage, away from moisture.
Powder -80°C, 2 years , -20°C, 1 year* In solvent : -80°C, 6 months; -20°C, 1 month (sealed storage, away from moisture)
All Dopamine Receptor Isoforms
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Biological Activity
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Dopamine Receptor |
MedChemExpress (MCE) has not independently confirmed the accuracy of these methods. They are for reference only.
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Animal Model:Male Swiss-Webster mice, 20-25g[1]
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Dosage:8 mg/kg
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Administration:SC; single dose given 24h after apomorphine (APO)
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Result:Attenuated the DA receptor supersensitivity caused by acute high dose APO (5 mg/kg; s.c.).
Chemical Information
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CAS No. 5845-67-0
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Appearance Solid
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Molecular Weight 170.21
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Formula C8H14N2O2
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Color White to off-white
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Synonyms
Cyclo(leu-gly)
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Shipping
Room temperature in continental US; may vary elsewhere.
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Storage
Sealed storage, away from moisture
Powder -80°C 2 years -20°C 1 year * In solvent : -80°C, 6 months; -20°C, 1 month (sealed storage, away from moisture)
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
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Data Sheet (270 KB)
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SDS (394 KB)
- English - EN (394 KB)
- Français - FR (394 KB)
- Deutsch - DE (394 KB)
- Norwegian - NO (394 KB)
- Español - ES (394 KB)
- Swedish - SV (394 KB)
- Italian - IT (394 KB)
- Korean - KR (394 KB)
- Portuguese - PT (394 KB)
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Handling Instructions (2659 KB)
References
[1]. J Z Fields, et al. The effects of cyclo(leucyl-glycyl) on nigrostriatal dopaminergic supersensitivity--inhibition of apomorphine-induced climbing. Neuropeptides. 1990 Aug;16(4):207-11. [Content Brief]
[2]. H N Bhargava, et al. Cyclo (leucylglycine) inhibits the development of morphine induced analgesic tolerance and dopamine receptor supersensitivity in rats. Life Sci. 1980 Jul 14;27(2):117-23. [Content Brief]
Calculators
Concentration (start) × Volume (start) = Concentration (final) × Volume (final)