21 THR  H      30 LYS  O       2.00
 21 THR  N      30 LYS  O       3.00
 21 THR  O      30 LYS  H       2.00
 21 THR  O      30 LYS  N       3.00
 19 ASN  O      32 TYR  H       2.00
 19 ASN  O      32 TYR  N       3.00