Thermo Fisher, 21339, EZ-Link™ Hydrazide-Biotin Thermo Scientific™

EZ-Link™ Hydrazide-Biotin Thermo Scientific™ 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.
Features of EZ-Link Hydrazide-Biotin:
•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.
7ÅThis 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.
We manufacture biotin reagents to ensure the highest possible overall product integrity, consistency and performance for the intended research applications.
Biotinylation reagentsdiffer in reactivity, length, solubility, cell permeability and cleavability. Hydrazides and alkoxyamines are twotypes of carbonyl-reactive groups. Hydrazides (—NH-NH2) react specifically with aldehyde groups in slightly acidic conditions to form hydrazone linkages; these can be further reduced to stable secondary amine bonds usingsodium cyanoborohydride (Part No. 44892). The reaction is more efficient in the presence ofaniline (Part No. 88944). Alternatively, hydrazides can be conjugated to carboxylic acids usingEDC carbodiimide chemistry.
Reactive aldehyde groups can be generated in glycoproteins and other polysaccharide compounds by oxidation of constituent sugar diols usingsodium periodiate (Part No. 20504). Sialic acid residues are common components of protein glycosylation and are easily converted to aldehydes with 1 mM NaIO4.
Cell Permeability: Cell-Permeant
Label Type: Biotin & Analogs
Product Line: EZ-Link™
Product Type: Hydrazide-Biotin
Quantity: 100 mg
Reactive Moiety: Amine, Hydrazide
Chemical Reactivity: Carboxylic Acid, Ketone, Aldehyde
Label or Dye: Biotin
Solubility: DMF (Dimethylformamide), DMSO (Dimethylsulfoxide)
Spacer: Short
Unit Size: Each