Source:http://linkedlifedata.com/resource/umls/id/C0007625
MSH: A fractionated cell extract that maintains a biological function. A subcellular fraction isolated by ultracentrifugation or other separation techniques must first be isolated so that a process can be studied free from all of the complex side reactions that occur in a cell. The cell-free system is therefore widely used in cell biology. (From Alberts et al., Molecular Biology of the Cell, 2d ed, p166),CSP: experimental condition created by disrupting cells with homogenization, sonication, detergents, or other treatment, leaving intracellular components exposed to controlled manipulation of the medium.