TY - JOUR AU - R Luo AU - M Head AU - J Moult AU - M Gilson C2 - Journal of the American Chemical Society DA - 1998-06-24 LA - en M1 - 120 PB - Journal of the American Chemical Society PY - 1998 TI - pKa Shifts in Small Molecules and HIV Protease: Electrostatics and Conformation ER -