A Cornell study of the structure of SARS-CoV-2, the virus that causes COVID-19, reveals a unique feature that could explain why it is so transmissible between people. The Cornell group also notes that – aside from primates – cats, ferrets and mink are the animal species apparently most susceptible to the human virus.
Gary Whittaker, professor of virology in the College of Veterinary Medicine, is senior author of “Phylogenetic Analysis and Structural Modeling of SARS-CoV-2 Spike Protein Reveals an Evolutionary Distinct and Proteolytically Sensitive Activation Loop,” which published April 19 in the Journal of Molecular Biology.
The study identifies a structural loop in the SARS-CoV-2 spike protein, the area of the virus that facilitates entry into a cell, and a sequence of four amino acids in this loop that is different from other known human coronaviruses in this viral lineage.
Read more at Cornell University
Image: SARS-CoV-2, the virus that causes COVID-19. CREDIT: NIAID-RM