PMID- 1097431 OWN - NLM STAT- MEDLINE DCOM- 19751028 LR - 20190509 IS - 0021-924X (Print) IS - 0021-924X (Linking) VI - 77 IP - 4 DP - 1975 Apr TI - Preferential production of IgG2 anti-hapten antibody by immunization with hapten-conjugated Escherichia coli. PG - 689-94 AB - It is well-known that immunization of guinea pigs with hapten-protein conjugates induces concomitant production of IgG1 and IgG2 anti-hapten antibodies. However, the synthesis of antibody to 2, 4-dinitrophenyl groups (DNP) was found to be restricted to one of the IgG antibodies (IgG2 antibody) when guinea pigs were immunized through repeated intraperitoneal injections of 0.1 mg of 2, 4-dinitrophenylated Escherichia coli (DNP-E coli). This selective induction of IgG2 anti-DNP antibody formation occurred both in the presence and absence of Freund's adjuvants, whereas a trace of IgG1 anti-DNP antibody was produced concomitantly on increasing the immunizing dose of DNP-E. coli (3.0 mg) in Freund's complete adjuvant (FAC). FAU - Furuichi, K AU - Furuichi K FAU - Koyama, J AU - Koyama J LA - eng PT - Journal Article PL - England TA - J Biochem JT - Journal of biochemistry JID - 0376600 RN - 0 (Antibodies) RN - 0 (Antigens, Bacterial) RN - 0 (Dinitrophenols) RN - 0 (Haptens) RN - 0 (Immunoglobulin G) RN - 9007-81-2 (Freund's Adjuvant) SB - IM MH - Animals MH - Antibodies/analysis MH - *Antibody Formation MH - Antigens, Bacterial MH - Dinitrophenols/immunology MH - Escherichia coli/*immunology MH - Freund's Adjuvant MH - Guinea Pigs MH - *Haptens MH - Hemagglutination Tests MH - Immunization MH - Immunoelectrophoresis MH - Immunoglobulin G/*biosynthesis MH - Radioimmunoassay EDAT- 1975/04/01 00:00 MHDA- 1975/04/01 00:01 CRDT- 1975/04/01 00:00 PHST- 1975/04/01 00:00 [pubmed] PHST- 1975/04/01 00:01 [medline] PHST- 1975/04/01 00:00 [entrez] AID - 10.1093/oxfordjournals.jbchem.a130772 [doi] PST - ppublish SO - J Biochem. 1975 Apr;77(4):689-94. doi: 10.1093/oxfordjournals.jbchem.a130772.