
<cell biology> Plasmid that confers the ability to conjugate (i.e. Fertility) on bacterial cells and carries the tra genes. It was first described in E. Coli. ... (18 Nov 1997) ...
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Filamentous actin.
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Type: Term Pronunciation: ak′tin Definitions: 1. the association of G-actin subunits into a fibrous (F) protein caused by an increase in salt concentration; the conversion of G-actin to F-actin is catalyzed by small concentrations of magnesium ion, is reversible, and is accompanied by the conversion of the bound ATP molecule to ADP and phosph...
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http://www.medilexicon.com/medicaldictionary.php?t=901
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