Fig. 6.
Effect of mixing PN19 peptides with MPER25 peptide on inhibitory activity of peptide PN19 against SARS-CoV-2 in Vero E6 cells infection. Peptide PN19 wilt type, PN19F→A898 and MPER25 alone diluted to contain single final concentrations from 0.05 to 50 μM alone or mixed were incubated at 4°C for 30 min, and then assayed for SARS-CoV-2 inhibition by the standard procedure. Peptide control with the same length but with unrelated sequence was also used. The values shown are means ± standard deviation (SD) of 3 independent experiments. Asterisks indicate significative difference at * p<0.05, ** p<0.01, *** p<0.001 (Student's t-test).