HIV-1 Proteases (PR) are an enzyme which cleaves the long HIV polyprotein into small functional peptide fragment. These small fragments again terminate into mature HIV. Inhibition of cleavage of poly protein into small peptide fragment could prevent regeneration of HIV. Computational docking between HIV-1 PR and derivatives of Cyclic Urea Inhibitors (CUIs) has provide us clue to design drug against AIDS. Computational approaches were used to dock ligand (CUIs) with HIV-1 PR to stop cleavage. CUIs are seven-member ring structure of cyclic urea compound. It incorporates the...