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Specific Activity:
ESGRO® is assessed both on ES {embryonic stem} cells (D3 & MBL-1) and on murine M1 myeloid leukemic cells(4). A standard of 50 Units is defined as the concentration of ESGRO® in 1.0mL of tissue culture medium that induces the differentiation of 50% of M1 colonies(4). 106 units is equivalent to approximately 10 µg of pure protein, and is sufficient to treat 1L of ES cell culture media.
Embryonic Stem Cell Assay: Differentiation inhibition at 1000 units/mL Murine myeloid leukemic, M1 Assay: Specific Activity >/= 108 units/mg
Embryonic Stem Cell Assay: Differentiation inhibition at 1000 units/mL Murine myeloid leukemic, M1 Assay: Specific Activity >/= 108 units/mg
ES Cells: In D3 and MBL-1 pluripotential ES cell cultures it is routinely found that 1000 U of ESGRO® per 1.0 mL of tissue culture media is required to maintain ES cells with a stem cell phenotype. Similar concentrations of mLIF have also been used for germline transmission of genetically altered ES cells(E3).
At the recommended concentration 107 units of ESGRO® is sufficient for 10.0 L of tissue culture media and 106 units of ESGRO® is sufficient for 1.0 L of tissue culture media.
Visit www.esgro-lif.com for additional information
更多详细信息:http://www.millipore.com/catalogue/item/esg1106
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ESGRO® (LIF)
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