High-Resolution NMR Structure of the Chemically-Synthesized Melanocortin Receptor Binding Domain AGRP(87−132) of the Agouti-Related Protein†,‡

Biochemistry ◽  
2001 ◽  
Vol 40 (51) ◽  
pp. 15520-15527 ◽  
Author(s):  
Joseph C. McNulty ◽  
Darren A. Thompson ◽  
Kimberly A. Bolin ◽  
Jill Wilken ◽  
Gregory S. Barsh ◽  
...  
Keyword(s):  
High Resolution ◽  
Receptor Binding ◽  
Binding Domain ◽  
Nmr Structure ◽  
Melanocortin Receptor ◽  
Receptor Binding Domain ◽  
Related Protein ◽  
High Resolution Nmr ◽  
Agouti Related Protein

scholarly journals High resolution linear epitope mapping of the receptor binding domain of SARS-CoV-2 spike protein in COVID-19 mRNA vaccine recipients.

2021 ◽  
Author(s):  
Yuko Nitahara ◽  
Yu Nakagama ◽  
Natsuko Kaku ◽  
Katherine Candray ◽  
Yu Michimuko ◽  
...  
Keyword(s):  
High Resolution ◽  
Receptor Binding ◽  
Messenger Rna ◽  
Natural Infection ◽  
Neutralizing Antibody ◽  
Binding Domain ◽  
Spike Protein ◽  
Linear Epitope ◽  
Receptor Binding Domain ◽  
Population Immunity

The prompt rollout of the coronavirus disease (COVID-19) messenger RNA (mRNA) vaccine facilitated population immunity, which shall become more dominant than natural infection-induced immunity. At the beginning of the vaccine era, the initial epitope profile in naive individuals will be the first step to build an optimal host defense system towards vaccine-based population immunity. In this study, the high-resolution linear epitope profiles between Pfizer-BioNTech COVID-19 mRNA vaccine recipients and COVID-19 patients were delineated by using microarrays mapped with overlapping peptides of the receptor binding domain (RBD) of severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) spike protein. The vaccine-induced antibodies targeting RBD had broader distribution across the RBD than that induced by the natural infection. The relatively lower neutralizing antibody titers observed in vaccine-induced sera could attribute to less efficient epitope selection and maturation of the vaccine-induced humoral immunity compared to the infection-induced. Furthermore, additional mutation panel assays showed that the vaccine-induced rich epitope variety targeting the RBD may aid antibodies to escape rapid viral evolution, which could grant an advantage to the vaccine immunity.

scholarly journals Mapping Neutralizing and Immunodominant Sites on the SARS-CoV-2 Spike Receptor-Binding Domain by Structure-Guided High-Resolution Serology

Cell ◽  
2020 ◽  
Vol 183 (4) ◽  
pp. 1024-1042.e21 ◽  
Author(s):  
Luca Piccoli ◽  
Young-Jun Park ◽  
M. Alejandra Tortorici ◽  
Nadine Czudnochowski ◽  
Alexandra C. Walls ◽  
...  
Keyword(s):  
High Resolution ◽  
Receptor Binding ◽  
Binding Domain ◽  
Receptor Binding Domain

scholarly journals High-Resolution Linear Epitope Mapping of the Receptor Binding Domain of SARS-CoV-2 Spike Protein in COVID-19 mRNA Vaccine Recipients

2021 ◽  
Author(s):  
Yuko Nitahara ◽  
Yu Nakagama ◽  
Natsuko Kaku ◽  
Katherine Candray ◽  
Yu Michimuko ◽  
...  
Keyword(s):  
High Resolution ◽  
Receptor Binding ◽  
Epitope Mapping ◽  
Binding Domain ◽  
Spike Protein ◽  
Linear Epitope ◽  
Receptor Binding Domain ◽  
Population Immunity ◽  
Herd Protection ◽  
Key Factor

Establishing vaccine-based population immunity has been the key factor in attaining herd protection. Thanks to expedited worldwide research efforts, the potency of mRNA vaccines against the coronavirus disease 2019 (COVID-19) is now incontestable.

Destabilizing the Structural Integrity of SARS-CoV2 Receptor Proteins by Curcumin Along with Hydroxychloroquine: An Insilco Approach for a Combination Therapy

2020 ◽  
Author(s):  
Akhileshwar Srivastava ◽  
Divya Singh
Keyword(s):  
Binding Energy ◽  
Combination Therapy ◽  
Receptor Binding ◽  
Structural Integrity ◽  
Binding Domain ◽  
Receptor Binding Domain ◽  
Receptor Proteins ◽  
Main Protease ◽  
The Stability ◽  
Therapeutic Activities

Presently, an emerging disease (COVID-19) has been spreading across the world due to coronavirus (SARS-CoV2). For treatment of SARS-CoV2 infection, currently hydroxychloroquine has been suggested by researchers, but it has not been found enough effective against this virus. The present study based on in silico approaches was designed to enhance the therapeutic activities of hydroxychloroquine by using curcumin as an adjunct drug against SARS-CoV2 receptor proteins: main-protease and S1 receptor binding domain (RBD). The webserver (ANCHOR) showed the higher protein stability for both receptors with disordered score (<0.5). The molecular docking analysis revealed that the binding energy (-24.58 kcal/mol) of hydroxychloroquine was higher than curcumin (-20.47 kcal/mol) for receptor main-protease, whereas binding energy of curcumin (<a>-38.84</a> kcal/mol) had greater than hydroxychloroquine<a> (-35.87</a> kcal/mol) in case of S1 receptor binding domain. Therefore, this study suggested that the curcumin could be used as combination therapy along with hydroxychloroquine for disrupting the stability of SARS-CoV2 receptor proteins

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