Sequence alignment between 1io4(D) and UniProt seq Q08024 (PEBB_MOUSE):

Q08024 (PEBB_MOUSE): Core-binding factor subunit beta from Mus musculus
                 10        20        30        40        50        60        70        80        90       100       110       120       130       140       150       160       170       180       
         ---------+---------+---------+---------+---------+---------+---------+---------+---------+---------+---------+---------+---------+---------+---------+---------+---------+---------+-------
UniProt: MPRVVPDQRSKFENEEFFRKLSRECEIKYTGFRDRPHEERQTRFQNACRDGRSEIAFVATGTNLSLQFFPASWQGEQRQTPSREYVDLEREAGKVYLKAPMILNGVCVIWKGWIDLHRLDGMGCLEFDEERAQQEDALAQQAFEEARRRTREFEDRDRSHREEMEARRQQDPSPGSNLGGGDDLKLR
         ......................................................................XXXXXXXXXXX..........................................................................................................
PDB seq: -PRVVPDQRSKFENEEFFRKLSRECEIKYTGFRDRPHEERQTRFQNACRDGRSEIAFVATGTNLSLQFFP-----------SREYVDLEREAGKVYLKAPMILNGVCVIWKGWIDLHRLDGMGCLEFDEERAQQEDALAQ-----------------------------------------------
          --------+---------+---------+---------+---------+---------+---------+           --------+---------+---------+---------+---------+---------+                                               
                 10        20        30        40        50        60        70                  90       100       110       120       130       140