912569-84-7
912569-84-7 structure
- Name: S-Me-DM1
- Chemical Name: S-methyl DM1
- CAS Number: 912569-84-7
- Molecular Formula: C36H50ClN3O10S
- Molecular Weight: 752.31
- Catalog: Signaling Pathways Cell Cycle/DNA Damage Microtubule/Tubulin
- Create Date: 2020-06-02 03:26:47
- Modify Date: 2025-08-25 09:21:43
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S-methyl DM1 is a thiomethyl derivative of Maytansine. S-methyl DM1 binds to tubulin with a Kd of 0.93 μM and inhibts microtubule polymerization. S-methyl DM1 potently suppresses microtubule dynamic instability and has anticancer effects[1][2].
| Name | S-methyl DM1 |
|---|
| Description | S-methyl DM1 is a thiomethyl derivative of Maytansine. S-methyl DM1 binds to tubulin with a Kd of 0.93 μM and inhibts microtubule polymerization. S-methyl DM1 potently suppresses microtubule dynamic instability and has anticancer effects[1][2]. |
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| Related Catalog | |
| Target |
Kd: 0.93 μM (Tubulin)[1] |
| In Vitro | S-methyl DM1 is the primary cellular or liver metabolite of antibody-maytansinoid conjugates prepared with thiol-containing maytansinoids DM1[1]. The half-maximal concentration for inhibition of microtubule assembly for for S-methyl DM1 is 4 μM. At 100 nM S-methyl-DM1 (84%) suppresses dynamic instability more strongly than Maytansine (45%). Tritiated S-methyl-DM1 bound to 37 high-affinity sites per microtubule (Kd of 0.1 μM)[1]. The concentration dependence curves for the inhibition of cell proliferation by S-methyl DM1 is sigmoidal in shape in MCF7 cells. Minimal inhibition occurred at 200 pM S-methyl DM1, and inhibition is maximal at 3 nM. S-methyl DM1 (IC50 of 330 pM) is slightly more potent than Maytansine (IC50 of 710 pM)[2]. S-methyl DM1 induces maxima of 80% accumulation of cells in G2/M as compared with only 30% in controls in MCF7 cells[2]. |
| References |
| Molecular Formula | C36H50ClN3O10S |
|---|---|
| Molecular Weight | 752.31 |