In this study, Tat (PDB code: 1K5K, model 1) and p53 (PDB code: 2J0Z) were docked through four different web servers: ZDOCK , FRODOCK , HawkDock and HPEPDOCK . By visual inspection with VMD, ten top ranked complex structures from each server were compared with those from other servers and consensus binding poses were identified . As a result of this analysis, four different models for the Tat-p53 complex were determined.