Application of biotin-4-fluorescein in homogeneous fluorescence assays for avidin, streptavidin, and biotin or biotin derivatives.
Authors:Ebner A, Marek M, Kaiser K, Kada G, Hahn CD, Lackner B, Gruber HJ,
Journal:Methods Mol Biol
PubMed ID:18287651
'Biotin-4-fluorescein (B4F) is a convenient molecular probe for (strept)avidin and for unlabeled biotin in homogeneous fluorescence assays. The primary standard is a 16 microM working solution of d-biotin which is used to titrate an aliquot of a (strept)avidin stock solution while monitoring the tryptophane fluorescence of (strept)avidin. This serves to ... More