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Article

In Vitro Affinity Maturation of Nanobodies against Mpox Virus A29 Protein Based on Computer-Aided Design

1
School of Health Science and Engineering, University of Shanghai for Science and Technology, Shanghai 200093, China
2
Lab of Toxicology and Pharmacology, Faculty of Naval Medicine, Naval Medical University, Shanghai 200433, China
3
Marine Biomedical Science and Technology Innovation Platform of Lingang Special Area, Shanghai 201306, China
*
Authors to whom correspondence should be addressed.
These authors contributed equally to this work.
Molecules 2023, 28(19), 6838; https://doi.org/10.3390/molecules28196838
Submission received: 22 August 2023 / Revised: 20 September 2023 / Accepted: 25 September 2023 / Published: 28 September 2023

Abstract

Mpox virus (MPXV), the most pathogenic zoonotic orthopoxvirus, caused worldwide concern during the SARS-CoV-2 epidemic. Growing evidence suggests that the MPXV surface protein A29 could be a specific diagnostic marker for immunological detection. In this study, a fully synthetic phage display library was screened, revealing two nanobodies (A1 and H8) that specifically recognize A29. Subsequently, an in vitro affinity maturation strategy based on computer-aided design was proposed by building and docking the A29 and A1 three-dimensional structures. Ligand-receptor binding and molecular dynamics simulations were performed to predict binding modes and key residues. Three mutant antibodies were predicted using the platform, increasing the affinity by approximately 10-fold compared with the parental form. These results will facilitate the application of computers in antibody optimization and reduce the cost of antibody development; moreover, the predicted antibodies provide a reference for establishing an immunological response against MPXV.
Keywords: MPXV; A29 protein; nanobody; in vitro affinity maturation MPXV; A29 protein; nanobody; in vitro affinity maturation

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MDPI and ACS Style

Yu, H.; Mao, G.; Pei, Z.; Cen, J.; Meng, W.; Wang, Y.; Zhang, S.; Li, S.; Xu, Q.; Sun, M.; et al. In Vitro Affinity Maturation of Nanobodies against Mpox Virus A29 Protein Based on Computer-Aided Design. Molecules 2023, 28, 6838. https://doi.org/10.3390/molecules28196838

AMA Style

Yu H, Mao G, Pei Z, Cen J, Meng W, Wang Y, Zhang S, Li S, Xu Q, Sun M, et al. In Vitro Affinity Maturation of Nanobodies against Mpox Virus A29 Protein Based on Computer-Aided Design. Molecules. 2023; 28(19):6838. https://doi.org/10.3390/molecules28196838

Chicago/Turabian Style

Yu, Haiyang, Guanchao Mao, Zhipeng Pei, Jinfeng Cen, Wenqi Meng, Yunqin Wang, Shanshan Zhang, Songling Li, Qingqiang Xu, Mingxue Sun, and et al. 2023. "In Vitro Affinity Maturation of Nanobodies against Mpox Virus A29 Protein Based on Computer-Aided Design" Molecules 28, no. 19: 6838. https://doi.org/10.3390/molecules28196838

APA Style

Yu, H., Mao, G., Pei, Z., Cen, J., Meng, W., Wang, Y., Zhang, S., Li, S., Xu, Q., Sun, M., & Xiao, K. (2023). In Vitro Affinity Maturation of Nanobodies against Mpox Virus A29 Protein Based on Computer-Aided Design. Molecules, 28(19), 6838. https://doi.org/10.3390/molecules28196838

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