Thermo Fisher, A39256, EZ-Link™ Sulfo-NHS-Biotin, No-Weigh™ Format, 10 x 1 mg

Quantity: 10 x 1 mg
Unit Size: Each
• Protein labeling - biotinylate antibodies to facilitate immobilization, purification or detection using streptavidin resins or probes
• Cell surface labeling - biotinylates only surface proteins of whole cells because the negatively charged reagent does not permeate cell membranes
• Amine-reactive - reacts with primary amines (-NH2), such as lysine side-chains or the amino-termini of polypeptides
• Soluble - charged sulfo-NHS group increases reagent water solubility compared to ordinary NHS-ester compounds
• Irreversible - forms permanent amide bonds; spacer arm cannot be cleaved
• Very short - spacer arm (total length added to target) is 13.5 angstroms; it consists of the native biotin valeric acid group only.