Human Complement Component 1, S Subcomponent (C1s) ELISA Kit

Quantification of complement C1s, the serine protease that cleaves C4 and C2 to launch the classical complement cascade, supports immunology and inflammation research. This colorimetric ELISA kit from Assay Genie is configured for 96 assays and accepts serum as well as plasma samples, alongside tissue homogenate, cell lysate, and cell culture supernatant specimens of human origin. Reagents include a pre-coated microplate, standards, and detection antibodies sufficient for batch processing of clinical samples. Applications include tracking C1s levels in autoimmune disease cohorts, monitoring complement activation in infection models, and characterizing innate immune responses in vitro. The plate-based workflow allows both single-timepoint measurements and longitudinal studies of classical pathway activity.