Sequence alignment between 1h9i(I) and UniProt seq P12071 (ITR2_ECBEL):

P12071 (ITR2_ECBEL): Trypsin inhibitor 2 from Ecballium elaterium 
                 10        20        30
         ---------+---------+---------+
UniProt: GCPRILMRCKQDSDCLAGCVCGPNGFCGSP
         ......X..............XX.X.....
PDB seq: GCPRILIRCKQDSDCLAGCVCTNNKFCGSP
         ---------+---------+---------+
                 10        20        30