Today’s antibodies are sourced from a diverse set of mammalian hosts whose isotypes have different affinities for protein A and protein G. ForteBio’s new protein G biosensor provides an “out-of-the-box” solution for direct quantitation of the mammalian immunoglobulins that do not bind to protein A. Readings can be performed in buffer, chromatography eluents, conditioned medium, and cultured lysates using a convenient 96- or 384- well microplate format. Assay parameters can be adjusted to detect concentrations from 0.05 µg/ml to 2,000…