PMID- 4990553 OWN - NLM STAT- MEDLINE DCOM- 19701206 LR - 20181113 IS - 0019-2805 (Print) IS - 1365-2567 (Electronic) IS - 0019-2805 (Linking) VI - 19 IP - 3 DP - 1970 Sep TI - A study of the heterogeneity of anti-dinitrophenyl (DNP) antibodies using inhibition of bacteriophage neutralization. PG - 429-37 AB - The dinitrophenyl (DNP) determinant was conjugated to T2 bacteriophage to yield conjugated phage (DNP-phage). Plaque formation by the DNP-phage was neutralized by rabbit anti-DNP antibodies. This neutralization was inhibited by incubating the antibody first with free hapten and subsequently with the DNP-phage. Both DNP-lysine and dinitro-aniline (DN-aniline) inhibited the neutralization of plaque formation. With antibodies obtained 8 days after immunization there was little difference between the inhibitory capacity of DNP-lysine and that of DN-aniline. However, with antibodies obtained 3 weeks after primary immunization, the inhibitory capacity of DNP-lysine was approximately three times greater than that of DN-aniline. The difference between the inhibitory capacity of the two haptens was further increased with respect to antibodies obtained 8 weeks after primary and 4 weeks after secondary immunization. With the latter two preparations of antibodies, DNP-lysine was approximately ten time more effective than DN-aniline. With antibody preparations from all but the earliest bleedings, the difference between the neutralization inhibitory capacity of DNP-lysine and DN-aniline depended on antibody concentration: at lower concentrations of antibodies the difference between the two inhibitors was at a minimum and increased as the antibody concentration increased. This variation in the relative capacity of the two haptens to inhibit neutralization is attributed to the heterogeneity of the anti-DNP antibodies. FAU - Carter, B G AU - Carter BG LA - eng PT - Journal Article PL - England TA - Immunology JT - Immunology JID - 0374672 RN - 0 (Aniline Compounds) RN - 0 (Antibodies) RN - 0 (Dinitrophenols) RN - 0 (Haptens) RN - K3Z4F929H6 (Lysine) SB - IM MH - Aniline Compounds MH - Animals MH - *Antibodies MH - Cattle MH - Coliphages/*immunology MH - *Dinitrophenols MH - Haptens MH - Immunodiffusion MH - Lysine MH - *Neutralization Tests MH - Rabbits PMC - PMC1455683 EDAT- 1970/09/01 00:00 MHDA- 1970/09/01 00:01 PMCR- 1971/09/01 CRDT- 1970/09/01 00:00 PHST- 1970/09/01 00:00 [pubmed] PHST- 1970/09/01 00:01 [medline] PHST- 1970/09/01 00:00 [entrez] PHST- 1971/09/01 00:00 [pmc-release] PST - ppublish SO - Immunology. 1970 Sep;19(3):429-37.