12 CYS SG 15 CYS H 2.90 12 CYS SG 15 CYS N 3.90 22 CYS SG 24 LYS H 2.90 22 CYS SG 24 LYS N 3.90 29 CYS SG 32 CYS H 2.90 29 CYS SG 32 CYS N 3.90