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2 protocols using fibronectin

1

Defined Culture Cocktail for Cell Expansion

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Besides using DMEM/F12 (Gibco) as a basal medium, other 13 kinds of chemically defined cocktail factors (13F) included 1× Insulin-Transferrin-Selenium (ITS; Gibco, 41400-045), 0.1% lipid concentrate (Gibco, 11905-031), 2 ng/mL TGF-β1 (Peprotech, AF-100-21C), 5 ng/mL bFGF (Peprotech, 100-18B), 10 ng/mL PDGF-AB (Peprotech, 100-00AB), 10 ng/mL PDGF-BB (Peprotech, 100-14B), 1 μg/mL fibronectin (Novoprotein, CH38), 197.6 µM vitamin C (Sigma, A8960), 55.9 μM putrescine (Sigma, P5780), 17.8 nM progesterone (Selleck, S1705), 100 nM hydrocortisone (Selleck, S1696), 10 μg/mL heparin sodium (Selleck, S1346), and 1.722 g/L sodium bicarbonate (NaHCO3, Gibco, 25080-094).
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2

Substrate Specificity of Rv2569c

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To evaluate the substrate specificity of Rv2569c protein, 4 μg of various substrates, including fibrinogen (Novoprotein, Suzhou, China), fibronectin (Novoprotein), and E-cadherin (Novoprotein), was incubated with 1 μg of Rv2569c purified protein in 20 μL of reaction volume (20 mM Tris-HCl, pH 8.0) for 12 h at 37°C. Then, the reaction products were examined by SDS-PAGE.
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