Keywords: پتانسیل الکترواستاتیک مانع است; PAN; polymerase acidic protein N-terminal domain; MD; molecular dynamics; MM/GBSA; molecular mechanics/generalized Born surface area; H5N1; hemagglutinin type 5 and neuraminidase type; M2 protein; matrix protein 2; HIV; human immunodeficiency virus; SBDD;