Thermo Scientific™ EZ-Link™ Hydrazide-Biotin
On demandThermo Scientific™ EZ-Link™ Hydrazide-Biotin
Thermo Scientific EZ-Link Hydrazide-Biotin is the shortest and simplest hydrazide-activated biotinylation reagent for labeling glycoproteins and other carbohydrate-containing compounds having oxidizable sugars or aldehydes.
This biotin hydrazide reagent enables simple and efficient biotin labeling of polyclonal antibodies and other glycoproteins. Mild oxidation of antibodies with sodium periodate produces reactive aldehydes on the carbohydrate moieties of the Fc portion that can be modified by hydrazides. This approach is advantageous for labeling antibodies because biotinylation occurs only at the sites of glycosylation, which are primarily in the Fc region of the antibody, far from the antigen binding site.
Features
- Glycoprotein labeling—biotinylate glycosylated proteins at sialic acid residues for detection or purification using streptavidin probes or resins
- Cell surface labeling—biotinylate and isolate cell surface glycoproteins
- Aldehyde-reactive—reacts with aldehydes formed by periodate-oxidation of sugar groups
- Hydrazide-activated—perform reactions at pH 4 to 6 in buffers such as sodium acetate
- Irreversible—forms semi-permanent hydrazone bonds; spacer arm cannot be cleaved
- Solubility—usually dissolved in DMSO before further dilution in aqueous buffers
- Spacer arm length—15.7Å
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