Leucylproline
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Leucylproline (Leu‑Pro) is a dipeptide composed of L‑leucine and L‑proline, and it is a fecal secondary metabolite associated with the gut microbiota. Leucylproline is taken up by Lactococcus lactis cells via the di‑tripeptide transport system, and mediates transcriptional repression of the prtP/prtM promoter after intracellular accumulation. The content of leucylproline is significantly decreased in fecal samples related to hepatolenticular degeneration. Leucylproline can be used for the study of metabolism‑related diseases.
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- CAS No.: 6403-35-6
- Formule: C11H20N2O3
- Masse moléculaire:228.29
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Stockage:Powder -20°C, 3 years ; In solvent -80°C, 6 months , -20°C, 1 month
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Activité biologique
Description
In Vitro
Leucylproline (1 mM) exerts an immediate, complete, and transient inhibitory effect on the prtP-regulated production of β-glucuronidase in a steady-state glucose-limited continuous culture system of Lactococcus lactis MG1363 (pNZ544)[1].
Leucylproline shows significantly reduced relative abundance in Wilson’s‑disease‑associated fecal metabolome datasets[2].
MedChemExpress (MCE) has not independently confirmed the accuracy of these methods. They are for reference only.
Chemical Information
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CAS No. 6403-35-6
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Appearance Solid
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Masse moléculaire 228.29
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Formule C11H20N2O3
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Color White to off-white
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SMILES
O=C([C@H]1N(CCC1)C([C@@H](N)CC(C)C)=O)O
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Synonyms
Leu-Pro
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Livraison
Room temperature in continental US; may vary elsewhere.
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Stockage
Powder -20°C 3 years In solvent -80°C 6 months -20°C 1 month
Solvant et solubilité
In Vitro:
H2O : ≥ 100 mg/mL (438.04 mM)
DMSO : 50 mg/mL (219.02 mM; Need ultrasonic; Hygroscopic DMSO has a significant impact on the solubility of product, please use newly opened DMSO)
* "≥" means soluble, but saturation unknown.
Please refer to the solubility information to select the appropriate solvent. Once prepared, please aliquot and store the solution to prevent product inactivation from repeated freeze-thaw cycles.
Storage method and period of stock solution: -80°C, 6 months; -20°C, 1 month. When stored at -80°C, please use it within 6 months. When stored at -20°C, please use it within 1 month.
* Note: If you choose water as the stock solution, please dilute it to the working solution, then filter and sterilize it with a 0.22 μm filter before use.
Please refer to the solubility information to select the appropriate solvent. Once prepared, please aliquot and store the solution to prevent product inactivation from repeated freeze-thaw cycles.
Storage method and period of stock solution: -80°C, 6 months; -20°C, 1 month. When stored at -80°C, please use it within 6 months. When stored at -20°C, please use it within 1 month.
* Note: If you choose water as the stock solution, please dilute it to the working solution, then filter and sterilize it with a 0.22 μm filter before use.
Concentration (start) × Volume (start) = Concentration (final) × Volume (final)
In Vivo:
Select the appropriate dissolution method based on your experimental animal and administration route.
- For the following dissolution methods, please ensure to first prepare a clear stock solution using an In Vitro approach and then sequentially add co-solvents:
- To ensure reliable experimental results, the clarified stock solution can be appropriately stored based on storage conditions. As for the working solution for In Vivo experiments, it is recommended to prepare freshly and use it on the same day.
- The percentages shown for the solvents indicate their volumetric ratio in the final prepared solution. If precipitation or phase separation occurs during preparation, heat and/or sonication can be used to aid dissolution.
Add each solvent one by one: 10% DMSO 40% PEG300 5% Tween-80 45% Saline
Solubility: ≥ 2.5 mg/mL (10.95 mM); Clear solution
This protocol yields a clear solution of ≥ 2.5 mg/mL (saturation unknown).
Taking 1 mL working solution as an example, add 100 μL DMSO stock solution (25.0 mg/mL) to 400 μL PEG300, and mix evenly; then add 50 μL Tween-80 and mix evenly; then add 450 μL Saline to adjust the volume to 1 mL.
Preparation of Saline: Dissolve 0.9 g sodium chloride in ddH₂O and dilute to 100 mL to obtain a clear Saline solution.
Add each solvent one by one: 10% DMSO 90% (20% SBE-β-CD in Saline)
Solubility: ≥ 2.5 mg/mL (10.95 mM); Clear solution
This protocol yields a clear solution of ≥ 2.5 mg/mL (saturation unknown).
Taking 1 mL working solution as an example, add 100 μL DMSO stock solution (25.0 mg/mL) to 900 μL 20% SBE-β-CD in Saline, and mix evenly.
Preparation of 20% SBE-β-CD in Saline (4°C, storage for one week): 2 g SBE-β-CD powder is dissolved in 10 mL Saline, completely dissolve until clear.
In Vivo Dissolution Calculator
Please enter the basic information of animal experiments:
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Recommended: Prepare an additional quantity of animals to account for potential losses during experiments.
Working solution concentration: 0.22 mg/mL
This product has good water solubility, please refer to the measured solubility data in water/PBS/Saline for details.
Pureté et documentation
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Fiche technique (286 KB)
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SDS (252 KB)
- English - EN (252 KB)
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- Portuguese - PT (252 KB)
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Instruction de manipulation (2659 KB)
Références
Complete Stock Solution Preparation Table
Please refer to the solubility information to select the appropriate solvent. Once prepared, please aliquot and store the solution to prevent product inactivation from repeated freeze-thaw cycles.
Storage method and period of stock solution: -80°C, 6 months; -20°C, 1 month. When stored at -80°C, please use it within 6 months. When stored at -20°C, please use it within 1 month.
| Optional Solvent | Concentration Solvent Mass | 1 mg | 5 mg | 10 mg | 25 mg |
|---|---|---|---|---|---|
| DMSO / H2O | 1 mM | 4.3804 mL | 21.9020 mL | 43.8039 mL | 109.5098 mL |
| 5 mM | 0.8761 mL | 4.3804 mL | 8.7608 mL | 21.9020 mL | |
| 10 mM | 0.4380 mL | 2.1902 mL | 4.3804 mL | 10.9510 mL | |
| 15 mM | 0.2920 mL | 1.4601 mL | 2.9203 mL | 7.3007 mL | |
| 20 mM | 0.2190 mL | 1.0951 mL | 2.1902 mL | 5.4755 mL | |
| 25 mM | 0.1752 mL | 0.8761 mL | 1.7522 mL | 4.3804 mL | |
| 30 mM | 0.1460 mL | 0.7301 mL | 1.4601 mL | 3.6503 mL | |
| 40 mM | 0.1095 mL | 0.5475 mL | 1.0951 mL | 2.7377 mL | |
| 50 mM | 0.0876 mL | 0.4380 mL | 0.8761 mL | 2.1902 mL | |
| 60 mM | 0.0730 mL | 0.3650 mL | 0.7301 mL | 1.8252 mL | |
| 80 mM | 0.0548 mL | 0.2738 mL | 0.5475 mL | 1.3689 mL | |
| 100 mM | 0.0438 mL | 0.2190 mL | 0.4380 mL | 1.0951 mL |
* Note: If you choose water as the stock solution, please dilute it to the working solution, then filter and sterilize it with a 0.22 μm filter before use.