Quantitation of human complement fragment C4ai in physiological fluids by competitive inhibition radioimmune assay

Factor J, an inhibitor of the complement

Factor J, an inhibitor of the complement classical pathway: The quantitation by an ELISA inhibition assay in normal human serum

✍ Miguel Angel Jiménez-Clavero; Carolina González-Rubio; Gumersindo Fontán; Margar 📂 Article 📅 1994 🏛 Elsevier Science 🌐 English ⚖ 712 KB

Factor J (FJ) is a protein present in human serum, with inhibitory activity against C1. Here we describe the quantitation of FJ in human serum by means of an ELISA inhibition assay. We have purified FJ from the urine of a normal donor following a previously published method with slight modifications