American Qualex offers a complete and easy to use kit for the biotinylation of proteins and nucleic acids. Biotinylation is simple and gentle labelling procedure and is particularly useful for labeling monoclonal antibodies or affinity purified polyclonal antibodies. Biotin N-hydroxysuccinimide ester will biotinylate primary amine groups of both proteins and nucleic acids. Each kit includes complete protocols and provides sufficient reagents to label 50 mg of antibody or 100 ug of nucleic acids.

American Qualex offers a complete kit for quick and easy labeling of antibody (or other protein) with Fluorescein (FITC). FITC-antibody conjugates are useful in many applications such as flow cytometry and immunocytochemistry. Direct lableing of the primary antibody eliminates the need for a second antibody. Each kit includes complete protocols and sufficient reagents to perform 5 conjugations of 100 ug to 2.5 mg of each.