a synthetic pentadecapeptide preparation , env 406-420 , with an amino acid sequence deduced from the envelope glycoprotein gene of human t cell leukemia virus type i ( htlv i ) , was used as the antigen in an enzyme immunoassay for immunoglobulin g antibodies , exploring its usefulness for seroepidemiological purposes .
C0020852
immunoglobulin g
C0003241
antibodies