HIS 374 * ALA 519 * GLN 520 * THR 521 * ALA 523 * LYS 857 * ASP 858 * PHE 884 * ALA 902 * VAL 903 * VAL 904 * LEU 905 * HIS 906 * TYR 907 * THR 908 * ASP 909 * TRP 910 * LEU 911 * HIS 912 * PRO 913 * THR 917 * HIS 918 * LEU 919 * ARG 920 * ASP 921 * ALA 922 * MET 923 * SER 924 * ALA 925 * VAL 926 * VAL 927 * ASP 929 * ARG 1050 * GLN 1052 * THR 1053 * CYS 1054 * PHE 1056 * TRP 1057 *