6-O-Methyl Guanosine
Based on 1 Customer Validation
6-O-Methyl Guanosine is a Ribonucleoside. Replacement of the conserved G5, G8 or G12 residues in hammerhead ribozymes with 6-O-Methyl Guanosine reduces kcat without altering Km. 6-O-Methyl Guanosine exerts position-dependent regulatory effects on ribosomal velocity and fidelity. When 6-O-Methyl Guanosine is located at the first or third position of a codon, it decreases the accuracy of tRNA selection. When 6-O-Methyl Guanosine is located at the second position of a codon, it slows down the peptide bond formation rate of cognate aminoacyl-tRNA but does not change the reaction rate of near-cognate aminoacyl-tRNA.
For research use only. We do not sell to patients.
- Purity: 99.65%
- CAS No.: 7803-88-5
- Formula: C11H15N5O5
- Molecular Weight:297.27
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Storage:Powder -20°C, 3 years , 4°C, 2 years ; In solvent -80°C, 2 years , -20°C, 1 year
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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
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Biological Activity
Substitution of conserved G5, G8, or G12 residues in hammerhead ribozymes with 6-O-Methyl Guanosine (10-40 nM) reduces kcat by approximately 75-fold without altering Km[1].
When 6-O-Methyl Guanosine is located at the first or third position of a codon, it reduces the accuracy of tRNA selection. When it is located at the second position of a codon, it slows down the peptide bond formation rate of cognate aminoacyl-tRNA, but does not alter the reaction rate of near-cognate aminoacyl-tRNA[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. 7803-88-5
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Appearance Solid
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Molecular Weight 297.27
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Formula C11H15N5O5
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Color White to off-white
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SMILES
OC[C@@H]1[C@@H](O)[C@@H](O)[C@H](N(C=N2)C3=C2C(OC)=NC(N)=N3)O1
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Shipping
Room temperature in continental US; may vary elsewhere.
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Storage
Powder -20°C 3 years 4°C 2 years In solvent -80°C 2 years -20°C 1 year
Solvent & Solubility
DMSO : 130 mg/mL (437.31 mM; Need ultrasonic; Hygroscopic DMSO has a significant impact on the solubility of product, please use newly opened DMSO)
H2O : 2 mg/mL (6.73 mM; Need ultrasonic and warming)
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, 2 years; -20°C, 1 year. When stored at -80°C, please use it within 2 years. When stored at -20°C, please use it within 1 year.
* 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, 2 years; -20°C, 1 year. When stored at -80°C, please use it within 2 years. When stored at -20°C, please use it within 1 year.
* 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)
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: ≥ 6.5 mg/mL (21.87 mM); Clear solution
This protocol yields a clear solution of ≥ 6.5 mg/mL (saturation unknown).
Taking 1 mL working solution as an example, add 100 μL DMSO stock solution (65.0 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: ≥ 6.5 mg/mL (21.87 mM); Clear solution
This protocol yields a clear solution of ≥ 6.5 mg/mL (saturation unknown).
Taking 1 mL working solution as an example, add 100 μL DMSO stock solution (65.0 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.
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.
Please enter your animal formula composition:
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%DMSO +
Recommended: Keep the proportion of DMSO in working solution below 2% if your animal is weak.
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%+
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+%Tween-80 + +
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%Saline +
The co-solvents required include: DMSO, . All of co-solvents are available by MedChemExpress (MCE). , Tween 80. All of co-solvents are available by MedChemExpress (MCE).
Working solution concentration: 0.22 mg/mL
Method for preparing stock solution: mg drug dissolved in μL DMSO. Stock solution concentration: mg/mL.
1. Take μL DMSO stock solution;
2. Add μL .
μL , mix evenly;
3. Then add μL Tween 80, mix evenly;
4. Then add μL
Please ensure that the stock solution in the first step is dissolved to a clear state, and add co-solvents in sequence. You can use ultrasonic heating (ultrasonic cleaner, recommended frequency 20-40 kHz), vortexing, etc. to assist dissolution.
Purity & Documentation
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Data Sheet (274 KB)
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SDS (393 KB)
- English - EN (393 KB)
- Français - FR (393 KB)
- Deutsch - DE (393 KB)
- Norwegian - NO (393 KB)
- Español - ES (393 KB)
- Swedish - SV (393 KB)
- Italian - IT (393 KB)
- Korean - KR (393 KB)
- Portuguese - PT (393 KB)
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Handling Instructions (2659 KB)
References
[1]. Grasby JA, et al. The synthesis of oligoribonucleotides containing O6-methylguanosine: the role of conserved guanosine residues in hammerhead ribozyme cleavage. Nucleic Acids Res. 1993;21(19):4444-4450. [Content Brief]
[2]. Hudson BH, et al. O6-Methylguanosine leads to position-dependent effects on ribosome speed and fidelity. RNA. 2015;21(9):1648-1659. [Content Brief]
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, 2 years; -20°C, 1 year. When stored at -80°C, please use it within 2 years. When stored at -20°C, please use it within 1 year.
| Optional Solvent | Concentration Solvent Mass | 1 mg | 5 mg | 10 mg | 25 mg |
|---|---|---|---|---|---|
| H2O / DMSO | 1 mM | 3.3639 mL | 16.8197 mL | 33.6395 mL | 84.0986 mL |
| 5 mM | 0.6728 mL | 3.3639 mL | 6.7279 mL | 16.8197 mL | |
| DMSO | 10 mM | 0.3364 mL | 1.6820 mL | 3.3639 mL | 8.4099 mL |
| 15 mM | 0.2243 mL | 1.1213 mL | 2.2426 mL | 5.6066 mL | |
| 20 mM | 0.1682 mL | 0.8410 mL | 1.6820 mL | 4.2049 mL | |
| 25 mM | 0.1346 mL | 0.6728 mL | 1.3456 mL | 3.3639 mL | |
| 30 mM | 0.1121 mL | 0.5607 mL | 1.1213 mL | 2.8033 mL | |
| 40 mM | 0.0841 mL | 0.4205 mL | 0.8410 mL | 2.1025 mL | |
| 50 mM | 0.0673 mL | 0.3364 mL | 0.6728 mL | 1.6820 mL | |
| 60 mM | 0.0561 mL | 0.2803 mL | 0.5607 mL | 1.4016 mL | |
| 80 mM | 0.0420 mL | 0.2102 mL | 0.4205 mL | 1.0512 mL | |
| 100 mM | 0.0336 mL | 0.1682 mL | 0.3364 mL | 0.8410 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.
6-O-Methyl Guanosine Related Classifications
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