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4101por Gobbi, Federico, Buonfrate, Dora, Moro, Lucia, Rodari, Paola, Piubelli, Chiara, Caldrer, Sara, Riccetti, Silvia, Sinigaglia, Alessandro, Barzon, Luisa“…In all subjects with pre-existing immunity, a rapid increase in anti-spike receptor-binding domain (RBD) IgG antibodies and neutralizing antibody titers was observed one week after the first dose, which seemed to act as a booster. …”
Publicado 2021
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4102por Zhang, Yi-Nan, Paynter, Jennifer, Sou, Cindy, Fourfouris, Tatiana, Wang, Ying, Abraham, Ciril, Ngo, Timothy, Zhang, Yi, He, Linling, Zhu, Jiang“…Using single-cell sorting, monoclonal antibodies (mAbs) with diverse neutralization breadth and potency were isolated from mice immunized with the receptor binding domain (RBD), S2GΔHR2 spike, and SApNP vaccines. The mechanism of vaccine-induced immunity was examined in mice. …”
Publicado 2021
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4103por Noy-Porat, Tal, Mechaly, Adva, Levy, Yinon, Makdasi, Efi, Alcalay, Ron, Gur, David, Aftalion, Moshe, Falach, Reut, Leviatan Ben-Arye, Shani, Lazar, Shirley, Zauberman, Ayelet, Epstein, Eyal, Chitlaru, Theodor, Weiss, Shay, Achdout, Hagit, Edgeworth, Jonathan D., Kikkeri, Raghavendra, Yu, Hai, Chen, Xi, Yitzhaki, Shmuel, Shapira, Shmuel C., Padler-Karavani, Vered, Mazor, Ohad, Rosenfeld, Ronit“…Previously, we reported efficient human therapeutic mAbs recognizing epitopes on the spike receptor-binding domain (RBD) of SARS-CoV-2. Here we report the isolation, characterization, and recombinant production of 12 neutralizing human mAbs, targeting three distinct epitopes on the spike N-terminal domain of the virus. …”
Publicado 2021
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4104por Jara, Luis M., Ferradas, Cusi, Schiaffino, Francesca, Sánchez-Carrión, Camila, Martinez, Ana, Ulloa, Alexandra, Isasi-Rivas, Gisela, Montalván, Angela, Sarmiento, Luis Guevara, Fernández, Manolo, Zimic, Mirko“…In this report we demonstrate the presence of serum neutralizing antibodies against the receptor binding-domain (RBD) of the SARS-CoV-2 in cats whose owners had been infected with SARS-CoV-2 in Lima, Peru, using a commercial competitive ELISA SARS-CoV-2 Surrogate Virus Neutralization Test. …”
Publicado 2021
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4105“…According to their different binding epitope regions in RBD or NTD, they are classified, and the mechanism of the representative antibodies in each category is discussed in depth, which provides potential foundation for future antibody and vaccine therapy and the development of antibody cocktails against SARS-CoV-2 mutants.…”
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4106“…To date, more than 3561 mutations in the viral spike protein were identified, including 2434 mutations that cause amino acid changes with 343 amino acids located in the viral receptor-binding domain (RBD). Among these mutations, the most representative ones are substitution mutations such as D614G, N501Y, Y453F, N439K/R, P681H, K417N/T, and E484K, and deletion mutations of ΔH69/V70 and Δ242–244, which confer the virus with enhanced infectivity, transmissibility, and resistance to neutralization. …”
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4107por Modenese, Alberto, Paduano, Stefania, Bargellini, Annalisa, Bellucci, Rossana, Marchetti, Simona, Bruno, Fulvio, Grazioli, Pietro, Vivoli, Roberto, Gobba, Fabriziomaria“…One month after the second dose, the serological titer of IgG-neutralizing anti-RBD antibodies of the subunit S1 of the spike protein of SARS-CoV-2 was determined. …”
Publicado 2021
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4108por Ashami, Kidist, Falk, Alexander S., Hurd, Connor, Garg, Samridhi, Cervantes, Silvia A., Rawat, Anoop, Siemer, Ansgar B.“…Orb2 fragments that lack the C-terminal RNA-binding domain (RBD) form fibrils out of these droplets. Solid-state NMR shows that these fibrils have well-ordered static domains in addition to the Gln/His-rich fibril core. …”
Publicado 2021
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4109por Lee, Yeong-Geun, Kang, Kyung Won, Hong, Woojae, Kim, Yeon Hwa, Oh, Jen Taek, Park, Dae Won, Ko, Minsung, Bai, Yun-Feng, Seo, Young-Jin, Lee, Sang-Myeong, Kim, Hyunggun, Kang, Se Chan“…Molecular docking analysis showed these components to bind potently to the spike receptor-binding-domain (RBD) of the SARS-CoV-2 and its variant B.1.1.7. …”
Publicado 2021
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4110por Martínez-Flores, Daniel, Zepeda-Cervantes, Jesús, Cruz-Reséndiz, Adolfo, Aguirre-Sampieri, Sergio, Sampieri, Alicia, Vaca, Luis“…Here, we review the different types of vaccines designed and developed against SARS-CoV-2, placing emphasis on whether they are based on the complete S glycoprotein, its antigenic domains such as the receptor-binding domain (RBD) or short epitopes within the S glycoprotein. …”
Publicado 2021
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4111“…Immunization-induced specific antibodies against the receptor binding domain (RBD) may block and effectively prevent virus invasion. …”
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4112por Larsen, Sasha E., Berube, Bryan J., Pecor, Tiffany, Cross, Evan, Brown, Bryan P., Williams, Brittany D., Johnson, Emma, Qu, Pingping, Carter, Lauren, Wrenn, Samuel, Kepl, Elizabeth, Sydeman, Claire, King, Neil P., Baldwin, Susan L., Coler, Rhea N.“…We developed and qualified Endpoint titer ELISAs for total IgG, IgG1, IgG3, IgG4, IgM and IgA to evaluate the magnitude of specific responses to the trimeric spike (S) antigen and total IgG specific to the spike receptor binding domain (RBD) of SARS-CoV-2. We also qualified a pseudovirus neutralization assay which evaluates functional antibody titers capable of inhibiting the entry and replication of a lentivirus containing the Spike antigen of SARS-CoV-2. …”
Publicado 2021
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4113por Ravichandran, Supriya, Grubbs, Gabrielle, Tang, Juanjie, Lee, Youri, Huang, Chang, Golding, Hana, Khurana, Surender“…Matched serum and nasal wash pairs were subjected to cytokine/chemokine analyses and comprehensive antibody profiling including epitope repertoire analyses, antibody kinetics to SARS-CoV-2 prefusion spike and spike RBD mutants, and neutralization of SARS-CoV-2 variants of concern. …”
Publicado 2021
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4114“…First, we identified rapid internalization of the receptor-binding domain (RBD) S1 domain (S1) and active trimer (Trimer) of SARS-CoV-2 spike protein through ACE2 in brain ECs. …”
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4115“…Furthermore, we verified that loss of HapB significantly induces the expression of the rhomboid protease RbdB, Dsc ubiquitin E3 ligase complex, and signal peptide peptidase SppA, which are required for the cleavage of SrbA, suggesting that HapB acts as a repressor for these genes which contribute to the activation of SrbA by proteolytic cleavage. …”
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4116por Nilles, Eric J., Siddiqui, Sameed M., Fischinger, Stephanie, Bartsch, Yannic C., de St. Aubin, Michael, Zhou, Guohai, Gluck, Matthew J., Berger, Samuel, Rhee, Justin, Petersen, Eric, Mormann, Benjamin, Loesche, Michael, Hu, Yiyuan, Chen, Zhilin, Yu, Jingyou, Gebre, Makda, Atyeo, Caroline, Gorman, Matthew J., Zhu, Alex Lee, Burke, John, Slein, Matthew, Hasdianda, Mohammad A., Jambaulikar, Guruprasad, Boyer, Edward W., Sabeti, Pardis C., Barouch, Dan H., Julg, Boris, Kucharski, Adam J., Musk, Elon R., Lauffenburger, Douglas A., Alter, Galit, Menon, Anil S.“…SARS-CoV-2 immunoassays included an IgG ELISA targeting the spike RBD, multiarray Luminex targeting 20 viral antigens, pseudovirus neutralization, and T cell ELISPOT assays. …”
Publicado 2021
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4117por Chakraborty, Sandipan“…Here, we decode the effect of these two mutations on the host receptor, ACE2, and neutralizing antibody (B38) recognition. The N501Y RBD mutant binds to ACE2 with higher affinity due to improved π-π stacking and π-cation interactions. …”
Publicado 2022
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4118por Rakshita, K. N., Singh, Shrawan, Verma, Veerendra Kumar, Sharma, Brij Bihari, Saini, Navinder, Iquebal, Mir Asif, Sharma, Akanksha, Dey, Shyam Sunder, Behera, T. K.“…Field evaluation of the genotypes was done in randomized block design (RBD) at two locations (i.e. IARI, New Delhi and ICAR-RC-NEH Region, Barapani) during Rabi2019-20. …”
Publicado 2021
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4119por Bowen, John E., Walls, Alexandra C., Joshi, Anshu, Sprouse, Kaitlin R., Stewart, Cameron, Tortorici, M. Alejandra, Franko, Nicholas M., Logue, Jennifer K., Mazzitelli, Ignacio G., Tiles, Sasha W, Ahmed, Kumail, Shariq, Asefa, Snell, Gyorgy, Iqbal, Najeeha Talat, Geffner, Jorge, Bandera, Alessandra, Gori, Andrea, Grifantini, Renata, Chu, Helen Y., Van Voorhis, Wesley C., Corti, Davide, Veesler, David“…We show that almost all plasma neutralizing activity is directed to prefusion S, in particular the S(1) subunit, and that variant cross-neutralization is mediated solely by RBD-specific antibodies. Our data provide a quantitative framework for guiding future S engineering efforts to develop vaccines with higher resilience to the emergence of variants and longer durability than current technologies.…”
Publicado 2021
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4120por Xiong, Xifeng, Tang, Nan, Lai, Xudong, Zhang, Jinli, Wen, Weilun, Li, Xiaojian, Li, Aiguo, Wu, Yanhua, Liu, Zhihe“…Especially, amentoflavone involves in anti-cancer activity by mediating various signaling pathways such as extracellular signal-regulated kinase (ERK), nuclear factor kappa-B (NF-κB) and phosphoinositide 3-kinase/protein kinase B (PI3K/Akt), and emerges anti-SARS-CoV-2 effect via binding towards the main protease (Mpro/3CLpro), spike protein receptor binding domain (RBD) and RNA-dependent RNA polymerase (RdRp) of SARS-CoV-2. …”
Publicado 2021
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