A delicate balance between antibody evasion and ACE2 affinity for Omicron BA.2.75
Variants of severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) have caused successive global waves of infection. These variants, with multiple mutations in the spike protein, are thought to facilitate escape from natural and vaccine-induced immunity and often increase in affinity for ACE2....
| Main Authors: | , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , |
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| Format: | Journal article |
| Language: | English |
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Cell Press
2022
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| _version_ | 1826310772684226560 |
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| author | Huo, J Dijokaite-Guraliuc, A Liu, C Zhou, D Ginn, HM Das, R Supasa, P Selvaraj, M Nutalai, R Tuekprakhon, A Duyvesteyn, HME Mentzer, AJ Skelly, D Ritter, TG Amini, A Bibi, S Adele, S Johnson, SA Paterson, NG Williams, MA Hall, DR Plowright, M Newman, TAH Hornsby, H de Silva, TI Temperton, N Klenerman, P Barnes, E Dunachie, SJ Pollard, AJ Lambe, T Goulder, P OPTIC consortium ISARIC4C consortium Fry, EE Mongkolsapaya, J Ren, J Stuart, DI Screaton, GR |
| author_facet | Huo, J Dijokaite-Guraliuc, A Liu, C Zhou, D Ginn, HM Das, R Supasa, P Selvaraj, M Nutalai, R Tuekprakhon, A Duyvesteyn, HME Mentzer, AJ Skelly, D Ritter, TG Amini, A Bibi, S Adele, S Johnson, SA Paterson, NG Williams, MA Hall, DR Plowright, M Newman, TAH Hornsby, H de Silva, TI Temperton, N Klenerman, P Barnes, E Dunachie, SJ Pollard, AJ Lambe, T Goulder, P OPTIC consortium ISARIC4C consortium Fry, EE Mongkolsapaya, J Ren, J Stuart, DI Screaton, GR |
| author_sort | Huo, J |
| collection | OXFORD |
| description | Variants of severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) have caused successive global waves of infection. These variants, with multiple mutations in the spike protein, are thought to facilitate escape from natural and vaccine-induced immunity and often increase in affinity for ACE2. The latest variant to cause concern is BA.2.75, identified in India where it is now the dominant strain, with evidence of wider dissemination. BA.2.75 is derived from BA.2 and contains four additional mutations in the receptor-binding domain (RBD). Here, we perform an antigenic and biophysical characterization of BA.2.75, revealing an interesting balance between humoral evasion and ACE2 receptor affinity. ACE2 affinity for BA.2.75 is increased 9-fold compared with BA.2; there is also evidence of escape of BA.2.75 from immune serum, particularly that induced by Delta infection, which may explain the rapid spread in India, where where there is a high background of Delta infection. ACE2 affinity appears to be prioritized over greater escape. |
| first_indexed | 2024-03-07T07:58:27Z |
| format | Journal article |
| id | oxford-uuid:0a89aa15-66a5-4139-9499-6cbe6ed8a11b |
| institution | University of Oxford |
| language | English |
| last_indexed | 2024-03-07T07:58:27Z |
| publishDate | 2022 |
| publisher | Cell Press |
| record_format | dspace |
| spelling | oxford-uuid:0a89aa15-66a5-4139-9499-6cbe6ed8a11b2023-09-13T07:09:40ZA delicate balance between antibody evasion and ACE2 affinity for Omicron BA.2.75Journal articlehttp://purl.org/coar/resource_type/c_dcae04bcuuid:0a89aa15-66a5-4139-9499-6cbe6ed8a11bEnglishSymplectic ElementsCell Press2022Huo, JDijokaite-Guraliuc, ALiu, CZhou, DGinn, HMDas, RSupasa, PSelvaraj, MNutalai, RTuekprakhon, ADuyvesteyn, HMEMentzer, AJSkelly, DRitter, TGAmini, ABibi, SAdele, SJohnson, SAPaterson, NGWilliams, MAHall, DRPlowright, MNewman, TAHHornsby, Hde Silva, TITemperton, NKlenerman, PBarnes, EDunachie, SJPollard, AJLambe, TGoulder, POPTIC consortiumISARIC4C consortiumFry, EEMongkolsapaya, JRen, JStuart, DIScreaton, GRVariants of severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) have caused successive global waves of infection. These variants, with multiple mutations in the spike protein, are thought to facilitate escape from natural and vaccine-induced immunity and often increase in affinity for ACE2. The latest variant to cause concern is BA.2.75, identified in India where it is now the dominant strain, with evidence of wider dissemination. BA.2.75 is derived from BA.2 and contains four additional mutations in the receptor-binding domain (RBD). Here, we perform an antigenic and biophysical characterization of BA.2.75, revealing an interesting balance between humoral evasion and ACE2 receptor affinity. ACE2 affinity for BA.2.75 is increased 9-fold compared with BA.2; there is also evidence of escape of BA.2.75 from immune serum, particularly that induced by Delta infection, which may explain the rapid spread in India, where where there is a high background of Delta infection. ACE2 affinity appears to be prioritized over greater escape. |
| spellingShingle | Huo, J Dijokaite-Guraliuc, A Liu, C Zhou, D Ginn, HM Das, R Supasa, P Selvaraj, M Nutalai, R Tuekprakhon, A Duyvesteyn, HME Mentzer, AJ Skelly, D Ritter, TG Amini, A Bibi, S Adele, S Johnson, SA Paterson, NG Williams, MA Hall, DR Plowright, M Newman, TAH Hornsby, H de Silva, TI Temperton, N Klenerman, P Barnes, E Dunachie, SJ Pollard, AJ Lambe, T Goulder, P OPTIC consortium ISARIC4C consortium Fry, EE Mongkolsapaya, J Ren, J Stuart, DI Screaton, GR A delicate balance between antibody evasion and ACE2 affinity for Omicron BA.2.75 |
| title | A delicate balance between antibody evasion and ACE2 affinity for Omicron BA.2.75 |
| title_full | A delicate balance between antibody evasion and ACE2 affinity for Omicron BA.2.75 |
| title_fullStr | A delicate balance between antibody evasion and ACE2 affinity for Omicron BA.2.75 |
| title_full_unstemmed | A delicate balance between antibody evasion and ACE2 affinity for Omicron BA.2.75 |
| title_short | A delicate balance between antibody evasion and ACE2 affinity for Omicron BA.2.75 |
| title_sort | delicate balance between antibody evasion and ace2 affinity for omicron ba 2 75 |
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