bi·o·tin·yl·a·tion (bi″o-tin″ə-laґshən) the incorporation of biotinyl groups into molecules, either that catalyzed by holocarboxylase synthetase during enzyme biosynthesis or that undertaken in vitro to visualize specific substrates by incubating them with biotin-labeled probes and avidin that has been linked to any of a variety of substances amenable to biochemical assay. biotinylated adj

Medical dictionary. 2011.

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