Sequence alignment between 2qn4(A) and UniProt seq P29421 (IAAS_ORYSJ):

P29421 (IAAS_ORYSJ): Alpha-amylase/subtilisin inhibitor from Oryza sativa subsp. japonica
                 10        20        30        40        50        60        70        80        90       100       110       120       130       140       150       160       170       180       190       200
         ---------+---------+---------+---------+---------+---------+---------+---------+---------+---------+---------+---------+---------+---------+---------+---------+---------+---------+---------+---------+
UniProt: MVSLRLPLILLSLLAISFSCSAAPPPVYDTEGHELSADGSYYVLPASPGHGGGLTMAPRVLPCPLLVAQETDERRKGFPVRFTPWGGAAAPEDRTIRVSTDVRIRFNAATICVQSTEWHVGDEPLTGARRVVTGPLIGPSPSGRENAFRVEKYGGGYKLVSCRDSCQDLGVSRDGARAWLGASQPPHVVVFKKARPSPPE
         .........................................................................................................................XXXXXXX........XXXXXX..........................................................
PDB seq: ----------------------APPPVYDTEGHELSADGSYYVLPASPGHGGGLTMAPRVLPCPLLVAQETDERRKGFPVRFTPWGGAAAPEDRTIRVSTDVRIRFNAATICVQSTEWHVG-------RRVVTGPL------GRENAFRVEKYGGGYKLVSCRDSCQDLGVSRDGARAWLGASQPPHVVVFKKA------
                               ---------+---------+---------+---------+---------+---------+---------+---------+---------+---------       ---+----      ---------+---------+---------+---------+---------+--      
                                       10        20        30        40        50        60        70        80        90                 110                 130       140       150       160       170