Deciphering critical amino acid residues to modify and enhance the binding affinity of ankyrin scaffold specific to capsid protein of human immunodeficiency virus type 1 by Saoin, Somphot, Wisitponchai, Tanchanok, Intachai, Kannaporn, Chupradit, Koollawat, Moonmuang, Sutpirat, Nangola, Sawitree, Kitidee, Kuntida, Fanhchaksai, Kanda, Lee, Vannajan Sanghiran, Hong, Saw See, Boulanger, Pierre, Chuankhayan, Phimonphan, Chen, Chun Jung, Tayapiwatana, Chatchai