Vector Laboratories fluorochrome-conjugated streptavidin and avidin reagents are highly purified and possess very low non-specific binding properties. They have extremely high affinity for biotin. These fluorescent conjugates can be used to detect biotinylated secondary antibodies and other macromolecules in applications such as immunofluorescence, in situ hybridization, or flow cytometry.
Excitation at 655 nm
Emission at 670 nm
Color: Far Red
Immunofluorescence, In situ hybridization, Flow Cytometry/Cell Separation
Recommended concentration range for use5-30 µg/ml
Avoid using RPMI 1640 or other biotin-containing solutions as diluents.Serum also can contain biotin and should not be added to diluents.
10 mM HEPES, 0.15 M NaCl, pH 7.5, 0.08% sodium azide.
Amplification of fluorescent signals can be easily achieved with our biotinylated secondary antibodies followed by our highly purified fluorochrome-labeled streptavidin or avidin. Using a biotin/avidin or biotin/streptavidin detection system results in an additional layer of amplification over a directly conjugated secondary antibody.
DyLight™ dyes offer several advantages including greater photostability, pH independence, and brighter fluorescence. We offer DyLight™ conjugated streptavidin for use in a variety of applications, in particular, cell- and tissue-based immunofluorescent detection. The DyLight™ conjugates are completely stable from pH 4 to pH 9, making them compatible with many aqueous-based buffers and diluents.
*Additional information about the images can be found here.