Sequence alignment between 1jbe(A) and UniProt seq P0AE67 (CHEY_ECOLI):

P0AE67 (CHEY_ECOLI): Chemotaxis protein CheY from Escherichia coli (strain K12)
                 10        20        30        40        50        60        70        80        90       100       110       120         
         ---------+---------+---------+---------+---------+---------+---------+---------+---------+---------+---------+---------+---------
UniProt: MADKELKFLVVDDFSTMRRIVRNLLKELGFNNVEEAEDGVDALNKLQAGGYGFVISDWNMPNMDGLELLKTIRADGAMSALPVLMVTAEAKKENIIAAAQAGASGYVVKPFTAATLEEKLNKIFEKLGM
         ..........................................................................X......................................................
PDB seq: -ADKELKFLVVDDFSTMRRIVRNLLKELGFNNVEEAEDGVDALNKLQAGGYGFVISDWNMPNMDGLELLKTIRAXGAMSALPVLMVTAEAKKENIIAAAQAGASGYVVKPFTAATLEEKLNKIFEKLGM
          --------+---------+---------+---------+---------+---------+---------+---------+---------+---------+---------+---------+---------
                 10        20        30        40        50        60        70        80        90       100       110       120