what is citrulline
A. Citrulline antibody is an immune protein (antibody) that binds to a non-standard amino acid (citrulline) that is formed by removing amino groups from the natural amino acid, arginine.Citrulline antibodies are measured with a blood test that is analyzed in laboratories.. Citrulline antibody is an immune protein (antibody) that binds to a non-standard amino acid (citrulline) that is formed by removing amino groups from the natural amino acid, arginine.