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)

Annotation

for study of subcellular fractions; not for micro-organisms; NIM; use A 11 qualif discreetly

DUI

D002474 MeSH Browser

CUI

M0003774

History note

91(67); was see under SUBCELLULAR FRACTIONS 1967-90

Public note

91; was see under SUBCELLULAR FRACTIONS 1967-90