COVID-19 has a wide range of clinical presentations, and the susceptibility to SARS-CoV-2 infection and the mortality rate also vary by region and ethnicity. Here, we found that rs12329760 in the TMPRSS2 gene, a missense variant common in East Asian populations, contributes to protection against SARS-CoV-2 infection. TMPRSS2 is a protease responsible for SARS-CoV-2 entry and syncytium formation. rs12329760 (c.478G>A, p. V160M) was associated with a reduced risk of moderate symptoms. The enzymatic activity of Met160-TMPRSS2 was lower than that of Val160-TMPRSS2, and thus the viral entry and the syncytium formation of SARS-CoV-2 were impaired. Collectively, these results indicate that the genetic variation in TMPRSS2, which is common in East Asians, is one of the molecular determinants of COVID-19 susceptibility.
Keywords: COVID-19; SARS-CoV-2; SNP; tmprss2; virus entry.
Copyright © 2022 Sekiya, Ogura, Kai, Kawaguchi, Okawa, Hirohama, Kuroki, Morii, Hara, Hiramatsu, Hitomi, Kawakami, Arakawa, Maruo, Chiba, Suzuki, Kojima, Tachikawa and Yamagata.