5w4l: Difference between revisions
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==Crystal structure of the non-neutralizing and ADCC-potent C11-like antibody N12-i3 in complex with HIV-1 clade A/E gp120, the CD4 mimetic M48U1, and the antibody N5-i5.== | ==Crystal structure of the non-neutralizing and ADCC-potent C11-like antibody N12-i3 in complex with HIV-1 clade A/E gp120, the CD4 mimetic M48U1, and the antibody N5-i5.== | ||
<StructureSection load='5w4l' size='340' side='right' caption='[[5w4l]], [[Resolution|resolution]] 2.92Å' scene=''> | <StructureSection load='5w4l' size='340' side='right'caption='[[5w4l]], [[Resolution|resolution]] 2.92Å' scene=''> | ||
== Structural highlights == | == Structural highlights == | ||
<table><tr><td colspan='2'>[[5w4l]] is a 12 chain structure with sequence from [http://en.wikipedia.org/wiki/9hiv1 9hiv1] and [http://en.wikipedia.org/wiki/Human Human]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=5W4L OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=5W4L FirstGlance]. <br> | <table><tr><td colspan='2'>[[5w4l]] is a 12 chain structure with sequence from [http://en.wikipedia.org/wiki/9hiv1 9hiv1] and [http://en.wikipedia.org/wiki/Human Human]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=5W4L OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=5W4L FirstGlance]. <br> | ||
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==See Also== | ==See Also== | ||
*[[Antibody 3D structures|Antibody 3D structures]] | *[[Antibody 3D structures|Antibody 3D structures]] | ||
*[[Gp120 3D structures|Gp120 3D structures]] | |||
== References == | == References == | ||
<references/> | <references/> | ||
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</StructureSection> | </StructureSection> | ||
[[Category: Human]] | [[Category: Human]] | ||
[[Category: Large Structures]] | |||
[[Category: Gohain, N]] | [[Category: Gohain, N]] | ||
[[Category: Pazgier, M]] | [[Category: Pazgier, M]] | ||
Revision as of 20:29, 11 December 2019
Crystal structure of the non-neutralizing and ADCC-potent C11-like antibody N12-i3 in complex with HIV-1 clade A/E gp120, the CD4 mimetic M48U1, and the antibody N5-i5.Crystal structure of the non-neutralizing and ADCC-potent C11-like antibody N12-i3 in complex with HIV-1 clade A/E gp120, the CD4 mimetic M48U1, and the antibody N5-i5.
Structural highlights
Publication Abstract from PubMedAntibodies can have an impact on HIV-1 infection in multiple ways, including antibody-dependent cellular cytotoxicity (ADCC), a correlate of protection observed in the RV144 vaccine trial. One of the most potent ADCC-inducing epitopes on HIV-1 Env is recognized by the C11 antibody. Here, we present the crystal structure, at 2.9 A resolution, of the C11-like antibody N12-i3, in a quaternary complex with the HIV-1 gp120, a CD4-mimicking peptide M48U1, and an A32-like antibody, N5-i5. Antibody N12-i3 recognizes an epitope centered on the N-terminal "eighth strand" of a critical beta sandwich, which our analysis indicates to be emblematic of a late-entry state, after the gp120 detachment. In prior entry states, this sandwich comprises only seven strands, with the eighth strand instead pairing with a portion of the gp120 C terminus. The conformational gymnastics of HIV-1 gp120 thus includes altered beta-strand pairing, possibly to reduce immunogenicity, although nevertheless still recognized by the human immune system. Targeting the Late Stage of HIV-1 Entry for Antibody-Dependent Cellular Cytotoxicity: Structural Basis for Env Epitopes in the C11 Region.,Tolbert WD, Gohain N, Alsahafi N, Van V, Orlandi C, Ding S, Martin L, Finzi A, Lewis GK, Ray K, Pazgier M Structure. 2017 Nov 7;25(11):1719-1731.e4. doi: 10.1016/j.str.2017.09.009. Epub, 2017 Oct 19. PMID:29056481[1] From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine. See AlsoReferences
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