Building on our expertise on generating and characterizing single-domain antibodies, QVQ developed a unique antibody against llama single-domain antibodies.

QE19 is a polyclonal protein A-purified rabbit antibody with little to no cross-reactivity to human, rat and mouse IgG1.

QE19 recognizes all VHH germlines and is suitable for ELISA, immunofluorescence, and flow cytometry.