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Streptolydigin
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Catalog No. T16945Cas No. 7229-50-7
Alias Portamycin
Streptolydigin inhibits RNA synthesis by binding to RNA polymerase and does not inhibit eukaryotic RNA polymerases. Streptolydigin is a 3-acetyltetramic acid antibiotic and a potent bacterial RNA polymerase inhibitor (Ki: 18 μM and a Kd: 15 μM).
Streptolydigin
Copy Product Info😃Good
Catalog No. T16945Alias PortamycinCas No. 7229-50-7
Streptolydigin inhibits RNA synthesis by binding to RNA polymerase and does not inhibit eukaryotic RNA polymerases. Streptolydigin is a 3-acetyltetramic acid antibiotic and a potent bacterial RNA polymerase inhibitor (Ki: 18 μM and a Kd: 15 μM).
| Pack Size | Price | USA Warehouse | Global Warehouse | Quantity |
|---|---|---|---|---|
| 25 mg | Inquiry | 3-6 months | 3-6 months | |
| 50 mg | Inquiry | 3-6 months | 3-6 months | |
| 100 mg | Inquiry | 3-6 months | 3-6 months |
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In Stock Estimated shipping dateUSA Warehouse[1-2 days] Global Warehouse[5-7 days]
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Product Introduction
Bioactivity
Chemical Properties
Storage & Solubility Information
| Description | Streptolydigin inhibits RNA synthesis by binding to RNA polymerase and does not inhibit eukaryotic RNA polymerases. Streptolydigin is a 3-acetyltetramic acid antibiotic and a potent bacterial RNA polymerase inhibitor (Ki: 18 μM and a Kd: 15 μM). |
| Targets&IC50 | RNA polymerase (bacterial):（ki）18 μM |
| In vitro | Streptolydigin inhibits initiation, elongation, and pyrophosphorolysis by bacterial RNA polymerase. Streptolydigin inhibits T. thermophilus RNA polymerase (a Ki: 1.8 μM). Binding of Streptolydigin to RNA polymerase strictly depends on a noncatalytic magnesium ion which is likely chelated by the aspartate of the bridge helix of the active center. Streptolydigin interacts with three structural elements within RNAP: the Stl pocket, the bridge helix, and the trigger-loop region. The Streptolydigin streptolol moiety interacts with the Streptolydigin pocket and bridge helix, and the Streptolydigin tetramic-acid moiety interacts with the trigger-loop region [1][3]. |
| Synonyms | Portamycin |
| Molecular Weight | 600.70 |
| Formula | C32H44N2O9 |
| Cas No. | 7229-50-7 |
| Smiles | C[C@@]12[C@]3(CO3)C=C[C@@H](O1)[C@H](C)[C@@]([C@@H](/C=C(/C=C/C(/O)=C/4\C(=O)N([C@@]([C@@H](C(NC)=O)C)(C4=O)[H])[C@]5(O[C@@H](C)[C@@H](O)CC5)[H])\C)C)(O2)[H] |
| Relative Density. | 1.1852 g/cm3 (Estimated) |
| Storage | Powder: -20°C for 3 years | In solvent: -80°C for 1 year | Shipping with blue ice/Shipping at ambient temperature. |
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In Vivo Formulation Calculator (Clear solution)
Please enter your animal experiment information in the following box and click Calculate to obtain the stock solution preparation method and in vivo formula preparation method:
For example, if the intended dosage is 10 mg/kg for animals weighing 20 g , with a dosing volume of 100 μL per animal, and a total of 10 animals are to be administered, using a formulation of 
10% DMSO+ 40% PEG300+ 5% Tween 80+ 45% Saline/PBS/ddH2O , the resulting working solution concentration would be 2 mg/mL.Stock Solution Preparation:
Dissolve 2 mg of the compound in 100 μL DMSO to obtain a stock solution at a concentration of 20 mg/mL . If the required concentration exceeds the compound's known solubility, please contact us for technical support before proceeding.
Preparation of the In Vivo Formulation:
1) Add 100 μL of the DMSO stock solution to 400 μL PEG300 and mix thoroughly until the solution becomes clear.
2) Add 50 μL Tween 80 and mix well until fully clarified.
3) Add 450 μL Saline,PBS or ddH2O and mix thoroughly until a homogeneous solution is obtained.
This example is provided solely to demonstrate the use of the In Vivo Formulation Calculator and does not constitute a recommended formulation for any specific compound. Please select an appropriate dissolution and formulation strategy based on your experimental model and route of administration.
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Please see Inhibitor Handling Instructions for more frequently ask questions. Topics include: how to prepare stock solutions, how to store products, and cautions on cell-based assays & animal experiments, etc
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