Fig. 1From: Oral cavity infection by the SARS-CoV-2: emphasizing the essence of masking and peptide therapeuticsA 3D representation of the hypothetic TMPRSS2-PAI-1 complex. a Cartoon depiction of the predicted protein–protein interaction between TMPRSS2 (blue) and PAI-1 (green). b Surface depiction of the predicted protein–protein interaction between TMPRSS2 (blue) and PAI-1 (green)Back to article page