Viruses (Apr 2023)

Little Brown Bats (<i>Myotis lucifugus</i>) Support the Binding of SARS-CoV-2 Spike and Are Likely Susceptible to SARS-CoV-2 Infection

  • Shubhada K. Chothe,
  • Padmaja Jakka,
  • Veda Sheersh Boorla,
  • Santhamani Ramasamy,
  • Abhinay Gontu,
  • Ruth H. Nissly,
  • Justin Brown,
  • Gregory Turner,
  • Brent J. Sewall,
  • DeeAnn M. Reeder,
  • Kenneth A. Field,
  • Julie B. Engiles,
  • Saranya Amirthalingam,
  • Abirami Ravichandran,
  • Lindsey LaBella,
  • Meera Surendran Nair,
  • Costas D. Maranas,
  • Suresh V. Kuchipudi

DOI
https://doi.org/10.3390/v15051103
Journal volume & issue
Vol. 15, no. 5
p. 1103

Abstract

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Severe acute respiratory syndrome coronavirus-2 (SARS-CoV-2), believed to have originated from a bat species, can infect a wide range of non-human hosts. Bats are known to harbor hundreds of coronaviruses capable of spillover into human populations. Recent studies have shown a significant variation in the susceptibility among bat species to SARS-CoV-2 infection. We show that little brown bats (LBB) express angiotensin-converting enzyme 2 receptor and the transmembrane serine protease 2, which are accessible to and support SARS-CoV-2 binding. All-atom molecular dynamics (MD) simulations revealed that LBB ACE2 formed strong electrostatic interactions with the RBD similar to human and cat ACE2 proteins. In summary, LBBs, a widely distributed North American bat species, could be at risk of SARS-CoV-2 infection and potentially serve as a natural reservoir. Finally, our framework, combining in vitro and in silico methods, is a useful tool to assess the SARS-CoV-2 susceptibility of bats and other animal species.

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