Sequence alignment between 4ro2(C) and UniProt seq Q81HW2 (Q81HW2_BACCR):

Q81HW2 (Q81HW2_BACCR): Potassium channel protein from Bacillus cereus (strain ATCC 14579 / DSM 31 / CCUG 7414 / JCM 2152 / NBRC 15305 / NCIMB 9373 / NCTC 2599 / NRRL B-3711)
                 10        20        30        40        50        60        70        80        90       100       110    
         ---------+---------+---------+---------+---------+---------+---------+---------+---------+---------+---------+----
UniProt: MLSFLLTLKRMLRACLRAWKDKEFQVLFVLTILTLISGTIFYSTVEGLRPIDALYFSVVTLTTVGDGNFSPQTDFGKIFTILYIFIGIGLVFGFIHKLAVNVQLPSILSNRKKE
         .................................................................XXXXX............................................
PDB seq: -----------------------FQVLFVLTILTLISGTIFYSTVEGLRPIDALYFSVVTLTTVGETP-PPQTDFGKIFTILYIFIGIGLVFGFIHKLAVNVQLP---------
                                ------+---------+---------+---------+-------- -+---------+---------+---------+----         
                                     30        40        50        60         70        80        90       100