Fig. 2From: SARS-CoV-2-associated gastrointestinal and liver diseases: what is known and what is needed to exploreCoronavirus uses angiotensin-converting enzyme-2 (ACE2) receptor to reach the cells with the binding of the viral spike (S) glycoprotein to cellular receptors via S protein priming by host cell proteases. TMPRSS2, transmembrane protease, serine 2; SARS-CoV-2, severe acute respiratory syndrome coronavirus 2Back to article page