Streptavidin-DM1 is a Protein-drug conjugate (PDC) of Streptavidin with microtubule-inhibiting drug DM1 (Mertansine) conjugate through a linker. >95% Streptavidin were conjugated with DM1, the DPR (drug protein ratio) n = 1-3 drugs per protein. Streptavidin is a 52.8 kD tetrameric protein obtained from Streptomyces avidinii. It binds to biotin with a very high affinity and is one of the strongest interactions in nature with a dissociation constant of 10-14 mol/L. It is used in a wide range of applications including ELISA, flow cytometry, molecular biology, and bionanotechnology. DM1 (Mertansine) is a microtubule-inhibiting drug that is a synthetic derivative of maytansine and is used as a potential cancer treatment. DM1 can be attached to a monoclonal antibody or proteins with a linker to create a conjugate that is developed to overcome systemic toxicity associated with maytansine and to enhance tumor-specific delivery. DM1 is a strong antiproliferative chemotherapeutics toward over 60 types of cancer cell lines. This product is for research use only.
Product Details |
Species Reactivity | Bind to Biotin, >15.0 U/mg protein |
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Source | E. coli |
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Type | Recombinant Protein |
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Measurement | A280 of 0.1% solution: 3.2 |
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Isoelectric point (pI) | 6.8 to 7.5 |
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DAR (Drug to Antibody Ratio) | >95% protein conjugated, 1-3 drugs per protein |
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Conjugate | Streptavidin conjugated with SMCC-DM1 |
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Purity | >95% |
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Molecular Weight | ~52800 |
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Protein Concentration | 1 mg/ml |
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Formulation | Liquid |
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Storage Condition | 4°C for short time, -20°C or -80°C for long time. |
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Storage Buffer | 20 mM Sodium Borate, 6% Trehalose, pH8.0 |