Which immunoglobulin has no known function but is present on the surface of B lymphocytes and it may function as an antigen receptor?
High-Yield Explanation
IgD antibody consists of two light chains and two heavy chains. Its role is not known but can be found on the surface of lymphocytes where it may act as a surface receptor. Ref : Ananthanarayana textbook of Microbiology 9th edition Pgno : 98