ACE2 and infection: In order to explore effective bioactive phytocompounds from black-cumin (BC) through bioinformatics analysis, we selected top-ranked 11 drug target proteins/receptors of which five receptors were SARS-CoV-2 proteins/proteases (S, N, RdRp, 3CLpro, PLpro) and the other six receptors were host proteins (ACE2, MAPK8, TMPRSS2, IL6, TNF, and NFKBIA) associated with the infection by the systematic literature review.