HIV molecular immunology database
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|gp160 Epitope Map|
|Author Location||gp120(61-70 LAI)|
|Research Contact||M. Niedrig|
|Ab Type||gp120 C1|
|Keywords||vaccine antigen design|
|Vaccine strain||B clade IIIB|
Showing 8 of 8 notes.
Showing 11 of 11 references.
Niedrig1992 M. Niedrig, H.-P. Harthus, M. Broker, H. Bickhard, G. Pauli, H. R. Gelderblom, and B. Wahren. Inhibition of viral replication by monoclonal antibodies directed against human immunodeficiency virus gp120. J. Gen. Virol., 73:2451-2455, 1992. PubMed ID: 1383412. Show all entries for this paper.
Thali1993 M. Thali, J. P. Moore, C. Furman, M. Charles, D. D. Ho, J. Robinson, and J. Sodroski. Characterization of Conserved Human Immunodeficiency Virus Type 1 gp120 Neutralization Epitopes Exposed upon gp120-CD4 Binding. J. Virol., 67:3978-3988, 1993. Five regions are likely to contribute to the 48d and 17b discontinuous epitopes, either directly or through local conformational effects: the hydrophobic ring-like structure formed by the disulfide bond that links C3 and C4, the base of the stem-loop that contains V1 and V2, and the hydrophobic region in C2 from Arg 252 to Asp 262. Additionally changes in Glu 370, and Met 475 in C5, affected binding and neutralization. The hydrophobic character of these critical regions is consistent with the limited exposure on gp120 prior to CD4 binding. PubMed ID: 7685405. Show all entries for this paper.
Moore1994a J. P. Moore, Q. J. Sattentau, R. Wyatt, and J. Sodroski. Probing the Structure of the Human Immunodeficiency Virus Surface Glycoprotein gp120 with a Panel of Monoclonal Antibodies. J. Virol., 68:469-484, 1994. This study compared a large number of MAbs that bind to linear epitopes of gp120, and compared binding affinities for: i) native and SDS-DDT denatured gp120, (clone BH10 of the LAI isolate expressed in CHO cells); ii) recombinant gp120 lacking the V1, V2, V3 loops; iii) a panel of 20 mer peptides; iv) a panel of gp120 mutants; and v) oligomeric versus monomeric gp120. The binding ratio of native versus denatured monomeric gp120 is included in the table in this database. These numbers should be considered with the following points in mind: a continuous epitope may be partially exposed on the surface; and a preparation of rgp120 is not homogeneous and contains fully folded, partly denatured, and some completely unfolded species, so the conformation of what is considered to be a native protein will not only reflect fully folded gp120. The authors suggest that a fivefold increase in the affinity for a MAb binding to denatured versus native gp120 indicates that the epitope is inaccessible in the native form. We also have included here information extracted from Moore et al's list of the gp120 mutations that reduced the binding of a particular MAb. In mapping of exposed regions of gp120, C2, C3, and C5 domain epitopes were found to bind preferentially to denatured gp120. V1, V2 and V3, part of C4, and the extreme carboxy terminus of C5 were exposed on the native monomer. In the oligomeric form of the molecule, only V2, V3 and part of C4 are well exposed as continuous epitopes. PubMed ID: 7504741. Show all entries for this paper.
Moore1994c J. P. Moore, R. L. Willey, G. K. Lewis, J. Robinson, and J. Sodroski. Immunological evidence for interactions between the first, second and fifth conserved domains of the gp120 surface glycoprotein of human immunodeficiency virus type 1. J. Virol., 68:6836-6847, 1994. Mutation 267N/Q in C2 region results in exposing the carboxy-terminal end gp120. PubMed ID: 7933065. Show all entries for this paper.
Wyatt1995 R. Wyatt, J. Moore, M. Accola, E. Desjardin, J. Robinson, and J. Sodroski. Involvement of the V1/V2 Variable Loop Structure in the Exposure of Human Immunodeficiency Virus Type 1 gp120 Epitopes Induced by Receptor Binding. J. Virol., 69:5723-5733, 1995. Deletions in the V1/V2 loops of gp120 resulted in the loss of the ability of sCD4 to induce binding of the MAbs 17b, 48d, and A32. A32 can induce binding of 17b and 48d; this induction does not appear to involve the V1/V2 regions. PubMed ID: 7543586. Show all entries for this paper.
Moore1996 J. P. Moore and J. Sodroski. Antibody cross-competition analysis of the human immunodeficiency virus type 1 gp120 exterior envelope glycoprotein. J. Virol., 70:1863-1872, 1996. 46 anti-gp120 monomer MAbs were used to create a competition matrix, and MAb competition groups were defined. The data suggests that there are two faces of the gp120 glycoprotein: a face occupied by the CD4BS, which is presumably also exposed on the oligomeric envelope glycoprotein complex, and a second face which is presumably inaccessible on the oligomer and interacts with a number of nonneutralizing antibodies. PubMed ID: 8627711. Show all entries for this paper.
Binley1997 J. M. Binley, H. Arshad, T. R. Fouts, and J. P. Moore. An investigation of the high avidity antibody response to gp120 of human immunodeficiency virus type 1. AIDS Res. Hum. Retroviruses, 13:1007-1015, 1997. PubMed ID: 9264287. Show all entries for this paper.
Wyatt1997 R. Wyatt, E. Desjardin, U. Olshevsky, C. Nixon, J. Binley, V. Olshevsky, and J. Sodroski. Analysis of the Interaction of the Human Immunodeficiency Virus Type 1 gp120 Envelope Glycoprotein with the gp41 Transmembrane Glycoprotein. J. Virol., 71:9722-9731, 1997. This study characterized the binding of gp120 and gp41 by comparing Ab reactivity to soluble gp120 and to a soluble complex of gp120 and gp41 called sgp140. The occlusion of gp120 epitopes in the sgp140 complex provides a guide to the gp120 domains that interact with gp41, localizing them in C1 and C5 of gp120. Mutations that disrupt the binding of the occluded antibodies do not influence NAb binding or CD4 binding, thus if the gp41 binding domain is deleted, the immunologically desirable features of gp120 for vaccine design are still intact. PubMed ID: 9371638. Show all entries for this paper.
Binley1998 J. M. Binley, R. Wyatt, E. Desjardins, P. D. Kwong, W. Hendrickson, J. P. Moore, and J. Sodroski. Analysis of the Interaction of Antibodies with a Conserved Enzymatically Deglycosylated Core of the HIV Type 1 Envelope Glycoprotein 120. AIDS Res. Hum. Retroviruses, 14:191-198, 1998. This paper helped showed the biological relevance of a deglycosylated variable loop deleted form of the core gp120. PubMed ID: 9491908. Show all entries for this paper.
Yang2000 Xinzhen Yang, Michael Farzan, Richard Wyatt, and Joseph Sodroski. Characterization of Stable, Soluble Trimers Containing Complete Ectodomains of Human Immunodeficiency Virus Type 1 Envelope Glycoproteins. J. Virol., 74(12):5716-5725, Jun 2000. PubMed ID: 10823881. Show all entries for this paper.
Pantophlet2003b Ralph Pantophlet, Ian A. Wilson, and Dennis R. Burton. Hyperglycosylated Mutants of Human Immunodeficiency Virus (HIV) Type 1 Monomeric gp120 as Novel Antigens for HIV Vaccine Design. J. Virol., 77(10):5889-8901, May 2003. PubMed ID: 12719582. Show all entries for this paper.