TY - JOUR AU - Luo, R AU - Head, M AU - Moult, J AU - Gilson, M 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 -