Species cross reactivity not tested 

2°C to 8°C  (≤ 30 days)

For long-term storage (> 30 days), aliquot and store at ≤ –20°C. Avoid repeated freeze-thaw.

For Research Use Only. Not for use in diagnostic procedures

Highly purified human Factor D was isolated and used to immunize goats. The Anti-Human Factor D polyclonal antisera was tested by immunodiffusion and determined to be monospecific for the Factor P protein.

Quidel Polyclonal Antiserum to Factor D Protein

Factor D is unique to the Alternative Complement Pathway. It consists of a single peptide chain with a molecular weight of 24 kD. Factor D is a specific serine protease which cleaves Factor B complexed with C3b (or hydrolyzed C3) in a single position to yield Bb and Ba.

Applications of Anti-Human Factor D antisera have been evaluated, and include immunodiffusion, Western Blot and ELISA.