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Deprecated: Implicit conversion from float 211.6 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534 Nanoscale 2020 ; 12 (31): 16409-16413 Nephropedia Template TP
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Quantitative determination of mechanical stability in the novel coronavirus spike protein #MMPMID32725017
Moreira RA; Chwastyk M; Baker JL; Guzman HV; Poma AB
Nanoscale 2020[Aug]; 12 (31): 16409-16413 PMID32725017show ga
We report on the novel observation about the gain in nanomechanical stability of the SARS-CoV-2 (CoV2) spike (S) protein in comparison with SARS-CoV from 2002 (CoV1). Our findings have several biological implications in the subfamily of coronaviruses, as they suggest that the receptor binding domain (RBD) ( approximately 200 amino acids) plays a fundamental role as a damping element of the massive viral particle's motion prior to cell-recognition, while also facilitating viral attachment, fusion and entry. The mechanical stability via pulling of the RBD is 250 pN and 200 pN for CoV2 and CoV1 respectively, and the additional stability observed for CoV2 ( approximately 50 pN) might play a role in the increasing spread of COVID-19.