A method for the isolation of plasma membranes is described. N-Succinimidyl 3-(2-pyridyldithio) propionate (SPDP), a heterobifunctional reagent, is covalently linked to protein amino groups in plasma membranes of intact cells. After homogenization of the cells the plasma membranes can be separated from other cell components by selective coupling to reduced Thiopropyl-Sepharose 6B and then recovered after treatment with 2-mercaptoethanol.
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Grunz, H. A new method for the isolation of plasma membranes from amphibian embryos. Wilhelm Roux' Archiv 188, 87–89 (1980). https://doi.org/10.1007/BF00848614
- Plasma membranes
- Early embryonic development