| profilin | <cell biology> Actin binding protein (15 kD) that forms a complex with G actin rendering it incompetent to nucleate F actin formation. The profilin actin complex seems to interact with inositol phospholipids that may regulate the availability of nucleation competent G actin. (18 Nov 1997) |
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| profiling | In the construction of fieldworks, the erection at proper intervals of wooden profiles, to show to the workmen the sectional form of the parapets at those points. Source: Websters Dictionary (01 Mar 1998) |