Used in immunological research to quantify levels of complement protein C7 in biological samples such as serum, plasma, or tissue homogenates. This ELISA kit enables researchers to study the activation of the complement system, particularly the membrane attack complex (MAC) formation, which plays a key role in immune defense and inflammatory processes. It is widely applied in studies related to autoimmune diseases, infections, and neurodegenerative disorders where complement dysregulation is implicated. The assay provides a sensitive and specific method for monitoring C7 expression under experimental or clinical conditions, supporting biomarker discovery and therapeutic development.