Binding of Pentamer to cells.

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Presentation transcript:

Binding of Pentamer to cells. Binding of Pentamer to cells. (A) Binding of Pentamer, gH/gL, Shiga toxin B (positive control), or TEV protease (negative control) to ARPE-19, HUVEC, and MRC5 cell surface. Abs, absorbance at 450 nm. (B) Effect of neutralizing antibodies on binding of Pentamer to HUVEC cell surface. The graph represents relative binding compared with the control sample with no antibodies (100%). (C) Two 180°-rotated surface views of Pentamer colored in white (gH), and four shades of gray from dark to light for gL, UL128, UL130, and UL131A. The location of the epitopes for neutralizing antibodies, as determined from the combination of x-ray crystal structures, NS-EM, and HDX-MS (this study), is depicted with colored surface patches (blue for site 1, red for site 2, green for site 3/7, pink for site 4/6, and orange for site 5). Additional epitopes located on gH and previously described (21) are mapped in cyan (site A; mAb 3G16), yellow (site B; mAb 13H11), and dark red (site C; mAb MSL-109). Glycosylation sites on the surface of Pentamer, modeled as oligomannose using the GlyProt server, are depicted with spheres, colored in black, red, blue, and white for carbon, oxygen, nitrogen, and hydrogen atoms, respectively. Notably, several of the neutralizing sites on the ULs are in the vicinity of, and potentially partially protected by, N-linked glycans. Sumana Chandramouli et al. Sci. Immunol. 2017;2:eaan1457 Copyright © 2017 The Authors, some rights reserved; exclusive licensee American Association for the Advancement of Science. No claim to original U.S. Government Works.