Human Therapeutic IgG1 ELISA Kit

Cayman’s Human Therapeutic IgG1 ELISA Kit is an immunometric (i.e. sandwich) assay that can be used for the quantification of human IgG1 in monkey, rat, mouse, or rabbit plasma and serum without prior sample purification. The standard curve spans the range of 3.13-200 ng/ml, with a lower limit of quantification (LLOQ) of 6.25 ng/ml. The assay has been validated in serum from cynomolgus monkey, rhesus monkey, rat, mouse, and rabbit.

Although a human monoclonal IgG1 antibody is supplied as a standard, we acknowledge that minor differences in protein structure or post-translational modification may exist between our standard and the human IgG1 test article that is being assessed by the customer, and that these differences could lead to inaccuracies in the quantification of the test article. Thus, we anticipate that many of our customers will prefer to use their own purified therapeutic monoclonal IgG1 as the standard in this ELISA. In that event, we recommend that the customer test their own standard in the ELISA at a similar dose range as the standard provided in the kit.

Needed but not supplied: Please download the kit booklet to verify if UltraPure Water (Milli-Q or equivalent) or any other components are needed for this assay.

WARNING This product is not for human or veterinary use.

Rust, L.N., Ricciardi, M.J., Lutz, S.S., et al. Prophylactic and therapeutic neutralizing monoclonal antibody treatment prevents lethal yellow fever infection. JCI Insight e191665 (2025).

Chen, S., Zhao, Y., Cao, M., et al. Anti-CTGF/PD-1 bispecific antibody Y126S restrains desmoplastic and immunosuppressive microenvironment in pancreatic cancer. J. Immunother. Cancer 13(6), e012144 (2025).

Kose, N., Fox, J.M., Sapparapu, G., et al. A lipid-encapsulated mRNA encoding a potently neutralizing human monoclonal antibody protects against chikungunya infection. Sci. Immunol. 4(35), eaaw6647 (2019).