Thermo Fisher, 21335, EZ-Link™ Sulfo-NHS-LC-Biotin, 100 mg

Quantity: 100 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
• Medium length - spacer arm (total length added to target) is 22.4 angstroms; provides excellent balance between adequate length (minimal steric hindrance for biotin binding) and modest mass