_:b682173 . _:b682173 . "Immunoglobulin DSYNCI" . "IgD"^^ . "IgD"^^ . "C0020843"^^ . "C566"^^ . "IgDPTNCI" . . "An immunoglobulin isotype (subclass). This isotype is expressed on naive B cells along with IgM. Little is known about its physiologic role.NCI" . "IgD"^^ . "Amino Acid, Peptide, or Protein"^^ . . _:b682173 . . "An immunoglobulin which accounts for less than 1% of plasma immunoglobulin. It is found on the membrane of many circulating B lymphocytes.MSH2002_06_01" . _:b682173 . "Immunologic Factor"^^ . .