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Vaccine Details

Notes

Showing 6 of 6 notes.

• D20: A comparison of 25 gp120 specific, conformation dependent MAbs was done -- D20 is part of a group of MAbs labeled A1 -- all A1 MAbs were broadly cross-reactive with gp160 from B-clade R5, X4, and R5X4 viruses, blocked CD4 binding, were sensitive to mutations in gp120 positions 368 and 370 that directly contact CD4. Sugiura1999 (antibody binding site)
• D20: Used for comparison in a study of gp41 antibodies -- D20 binds to a greater extent to cell surface expressed Env than any of 38 conformation dependent anti-gp41 MAbs. Earl1997 (antibody binding site)
• D20: Pulse label experiments of 4 MAbs (D20, D27, T20, and T22) binding to noncleavable gp160 revealed that these anti-CD4 MAbs bound with a delay, and that the epitope formed with a t 1/2 of about 10 minutes. Otteken1996
• D20: Human sera blocked binding in oligomeric ELISA assay to a similar extent for gp41 MAbs D20, D43, D61, and T4. Richardson1996
• D20: Binding completely blocked by pooled human sera. Broder1994
• D20: Generated during a study of the influence of the oligomeric structure of Env in determining the repertoire of the Ab response. Earl1994 (antibody generation)

References

Showing 6 of 6 references.

Isolation Paper
Earl1994 P. L. Earl, C. C. Broder, D. Long, S. A. Lee, J. Peterson, S. Chakrabarti, R. W. Doms, and B. Moss. Native oligomeric human immunodeficiency virus type 1 Envelope glycoprotein elicits diverse monoclonal antibody reactivities. J. Virol., 68:3015-3026, 1994. In a study of the repertoire of response to oligomeric versus monomeric Env protein, 138 murine MAbs were generated in response to an immunogen that was a gp120/bp41 oligomeric molecule that was not cleaved due to a mutation in the cleavage site. The oligomeric molecule was found to elicit a response that was very different than the monomer. Most MAbs were conformational, many were to gp41 or if in gp120, to the CD4 BS. Few MAbs to linear V3 epitopes were produced in response to oligomeric protein, though this was a common specificity in response to immunization with gp120 monomeric protein. PubMed ID: 7512157. Show all entries for this paper.

Broder1994 C.C. Broder, P.L. Earl, D. Long, S.T. Abedon, B. Moss, and R.W. Doms. Antigenic implications of human immunodeficiency virus type 1 envelope quaternary structure: Oligomer-specific and -sensitive monoclonal antibodies. Proc. Natl. Acad. Sci. U.S.A., 91:11699-11703, 1994. 35 anti-gp41 and 27 anti-gp120 murine MAbs generated by immunization with oligomeric HIV-1 IIIB envelope were studied. These MAbs tended to react with conformational epitopes. 21 of the anti-gp41 MAbs reacted preferentially with oligomeric env, while only 1 of the anti-gp120 MAbs reacted more strongly with the oligomer, and 14 of the anti-gp120 preferentially recognized monomeric env. PubMed ID: 7972127. Show all entries for this paper.

Earl1997 P. L. Earl, C. C. Broder, R. W. Doms, and B. Moss. Epitope map of human immunodeficiency virus type 1 gp41 derived from 47 monoclonal antibodies produced by immunization with oligomeric envelope protein. J. Virol., 71:2674-84, 1997. PubMed ID: 9060620. Show all entries for this paper.

Otteken1996 A. Otteken, P. L. Earl, and B. Moss. Folding, assembly, and intracellular trafficking of the human immunodeficiency virus type 1 Envelope glycoprotein analyzed with monoclonal antibodies recognizing maturational intermediates. J. Virol., 70:3407-15, 1996. PubMed ID: 8648672. Show all entries for this paper.

Richardson1996 T. M. Richardson, Jr., B. L. Stryjewski, C. C. Broder, J. A. Hoxie, J. R. Mascola, P. L. Earl, and R. W. Doms. Humoral response to oligomeric human immunodeficiency virus type 1 envelope protein. J. Virol., 70:753-62, 1996. An Env antigen capture enzyme-linked immunosorbent assay using a soluble, oligomeric form of HIV-1IIIB Env (gp140) that contains gp120 and the gp41 ectodomain was developed. The gp140, captured by various monoclonal antibodies (MAbs), retained its native oligomeric structure: it bound CD4 and was recognized by MAbs to conformational epitopes in gp120 and gp41, including oligomer-specific epitopes in gp41. PubMed ID: 8551612. Show all entries for this paper.

Sugiura1999 W. Sugiura, C. C. Broder, B. Moss, and P. L. Earl. Characterization of conformation-dependent anti-gp120 murine monoclonal antibodies produced by immunization with monomeric and oligomeric human immunodeficiency virus type 1 envelope proteins. Virology, 254:257-67, 1999. PubMed ID: 9986792. Show all entries for this paper.