What are Factor H antibodies?
Anti-Factor H antibodies are immunoglobulins that specifically recognize and bind complement factor H, a glycoprotein encoded by CFH in humans. In research applications, these antibodies are used to detect Factor H in tissue samples, cell lysates, and cultured cells. Factor H acts as a soluble inhibitor of the complement alternative pathway, binding to self markers such as glycan structures on host cell surfaces and accelerating the decay of the C3 convertase C3bBb to prevent uncontrolled complement activation. Detecting Factor H supports research into complement regulation and its dysfunction in autoimmune and kidney diseases.
Catalog highlights and purchasing considerations
About the Biocompare Factor H antibody catalog
The Biocompare antibody search tool lists anti-Factor H antibodies from a range of suppliers, available in unconjugated and biotin-conjugated formats. Listings may also appear under the gene symbol CFH. Western blot is the most common validated application among these listings, followed by ELISA and immunohistochemistry.
Considerations when choosing a Factor H antibody for research
Confirm that the antibody's intended target is accurate, as many genes carry synonym symbols that can create ambiguity across suppliers. Specificity should be verified against the immunogen sequence or region listed on the product datasheet, since antibodies raised against different epitopes of the same protein can behave differently across applications. Beyond specificity, several target-related attributes can affect antibody binding, including subcellular location, extracellular and cytoplasmic domain boundaries for membrane-associated targets, tissue specificity, post-translational modifications, and the presence of additional isoforms or disease-associated variants. In parallel, antibody-specific selection criteria warrant consideration, including clonality (monoclonal versus polyclonal), host species, species reactivity, and conjugate or label choice suited to the detection method. Supplier validation data, such as western blot bands at the expected molecular weight, immunohistochemistry staining patterns consistent with known tissue distribution, and knockout or knockdown controls, should also be carefully reviewed before purchase.