“…However, several lines of evidence argue strongly against this interpretation. ABA-T can provide carrier function when coupled to nonimmunogenic molecules such as poly-d-glutamic acid (Alkan et al 1971), SHI polysaccharide (Mitchell 1975), and the random copolymer of dglutamic acid-Iysine (D-GL) (Bullock-et al 1975a), converting these nonimmunogens to immunogens. Strong positive skin test reactions can be elicited on ABA-T immune animals with a wide variety of ABA-proteins, indicating a total lack of host protein specificity in direct contrast to contact sensitization (Benacerraf & Gell 1959, GeU & Bena-cerraf 1961.…”