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| Cas No.: | 863971-24-8 |
| Chemical Name: | MC-MMAE |
| Synonyms: | Mc MMAE;Maleimidocaproyl-monomethylauristatin E;MC-MMAE |
| SMILES: | O(C)[C@H]([C@H](C(N[C@H](C)[C@H](C1C=CC=CC=1)O)=O)C)[C@@H]1CCCN1C(C[C@H]([C@H]([C@@H](C)CC)N(C)C([C@H](C(C)C)NC([C@H](C(C)C)N(C)C(CCCCCN1C(C=CC1=O)=O)=O)=O)=O)OC)=O |
| Formula: | C49H78N6O10 |
| M.Wt: | 911.177834033966 |
| Purity: | >98% |
| Sotrage: | 4°C, stored under nitrogen |
| Description: | Mc-MMAE is a protective group (maleimidocaproyl)-conjugated monomethyl auristatin E (MMAE), which is a potent tubulin inhibitor, is a toxin payload in antibody drug conjugate (ADC). |
| Target: | Tubulin, Antibody-drug conjugates (ADC)[1] |
| In Vitro: | Synthesis of maleimidocaproyl-MMAE (mc-MMAE) requires the addition of maleimidocaproic acid to a solution of MMAE in dichloromethane followed by the addition of diethyl cyanophosphonate and diisopropylethylamine[1]. |
| Kinase Assay: | Horseradish peroxidase (HRP) is thiolated with 2-iminothiolane and conjugated to mc-MMAE to generate the HRP-MMAE reporter enzyme-drug conjugate. Briefly, a thiolation reaction mixture containing 0.2 mM HRP (8 mg/mL) and 50 mM 2-iminothiolane in 25 mM sodium borate decahydrate (Na2B4O7•10H2O) buffer (pH 9.0) is incubated for 1 hour at 37°C. Unreacted 2-iminothiolane is removed by passage through a PD-10 desalting column equilibrated in PBS (pH 7.4). Peak fractions are pooled and mc-MMAE is coupled to thiolated HRP (HRP-SH) at a molar ratio of 3:1. The final conjugation reaction mixture contained 80 μM HRP-SH (3.2 mg/mL) in sodium borate buffer [50 mM H3BO3, 50 mM NaCl (pH 8.0); 80% v/v] and 240 μM mc-MMAE in ice-cold CH3CN (20% v/v). After 30 minutes on ice, the reaction is terminated with a 20-fold molar excess of free cysteine (4.8 mM) before PD-10 chromatography. Peak fractions containing HRP-MMAE (exchanged into PBS) are pooled and evaluated for extent of modification using the thiol-reactive dye, Alexa Fluor 594 C5 maleimide[1]. |
| References: | [1]. Sanderson RJ, et al. In vivo drug-linker stability of an anti-CD30 dipeptide-linked auristatin immunoconjugate. Clin Cancer Res. 2005 Jan 15;11(2 Pt 1):843-52. |
MSDS
COA
| LOT NO. | DOWNLOAD |
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| 2018-0101 |
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