31 CYS  SG      1.80
 34 CYS  SG      1.80
 54 HIS  NE2     1.80
 59 HIS  NE2     1.80
 31 CYS  CB      1.80
 34 CYS  CB      1.80
 31 CYS  SG     34 CYS  SG      1.80
 31 CYS  SG     54 HIS  NE2     1.80
 31 CYS  SG     59 HIS  NE2     1.80
 34 CYS  SG     54 HIS  NE2     1.80
 34 CYS  SG     59 HIS  NE2     1.80
 54 HIS  NE2    59 HIS  NE2     1.80