Human Complement Component 4 (C4) ELISA Kit

The complement component C4 is a central glycoprotein of the classical and lectin complement activation pathways, and quantifying its circulating level provides actionable insight for immunology, autoimmune disease, transplant research, and infection studies. This colorimetric ELISA from Assay Genie is configured for research use only and supports in vitro quantification of human C4 across serum samples, plasma preparations, tissue homogenates, cell lysates, cell culture supernatants, and additional sample matrices. The kit is supplied in a 96 assays format and is intended for laboratory investigators studying complement consumption, hereditary angioedema, immune complex disease, and vaccine response profiling. Reagents should be stored refrigerated to preserve component stability through the kit's shelf life; refer to the supplied insert for precise storage and handling instructions. Each kit includes a pre-coated microplate suitable for quantitative measurement, and the procedure follows a standard ELISA workflow that laboratories can integrate into existing immunology pipelines.