53 PHE  H      46 LYS  O       1.80
 53 PHE  N      46 LYS  O       1.80
 55 HIS  H      44 ARG  O       1.80
 55 HIS  N      44 ARG  O       1.80
 54 VAL  HA     45 VAL  HA      1.80
 53 PHE  H      46 LYS  O       1.80
 53 PHE  N      46 LYS  O       1.80
 55 HIS  H      44 ARG  O       1.80
 55 HIS  N      44 ARG  O       1.80