Search on: CELLFREE SYSTEM 
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Descriptor English:   Cell-Free System 
Descriptor Spanish:   Sistema Libre de Células 
Descriptor Portuguese:   Sistema Livre de Células 
Synonyms English:   Cellfree System
Cell Free System
Cell-Free Systems
Cellfree Systems
System, Cell-Free
System, Cellfree
Systems, Cell-Free
Systems, Cellfree  
Tree Number:   A11.284.835.168
Definition English:   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) 
Indexing Annotation English:   for study of subcellular fractions; not for micro-organisms; NIM; use A 11 qualif discreetly
History Note English:   91(67); was see under SUBCELLULAR FRACTIONS 1967-90 
Allowable Qualifiers English:  
CH chemistry CL classification
DE drug effects EN enzymology
IM immunology ME metabolism
MI microbiology PS parasitology
PA pathology PH physiology
RE radiation effects SE secretion
TR transplantation UL ultrastructure
VI virology  
Record Number:   2494 
Unique Identifier:   D002474 

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