16 SER  N      12 LYS  O       2.50
 18 LYS  N      14 LEU  O       2.50
 19 LYS  N      15 HIS  O       2.50
 20 PHE  N      16 SER  O       2.50
 16 SER  H      12 LYS  O       1.50
 18 LYS  H      14 LEU  O       1.50
 19 LYS  H      15 HIS  O       1.50
 20 PHE  H      16 SER  O       1.50