Sequence alignment between 2kzc(A) and UniProt seq Q28P99 (Q28P99_JANSC):

Q28P99 (Q28P99_JANSC): Aldolase from Jannaschia sp. (strain CCS1)
                 10        20        30        40        50        60        70        80        90       100    
         ---------+---------+---------+---------+---------+---------+---------+---------+---------+---------+----
UniProt: MSTFDDRENAFENKFAHDAEMQFKAEARRNKLMGLWVAEVLGKSGDEANAYAAEVVKADFEEAGHEDVMRKVLGDLDGKRPEAEVRAKYEGLMAVAKAQLMDEL
         ...................X....................................................................................
PDB seq: -------------------GMQFKAEARRNKLMGLWVAEVLGKSGDEANAYAAEVVKADFEEAGHEDVMRKVLGDLDGKRPEAEVRAKYEGLMAVAKAQLMDEL
                            ---------+---------+---------+---------+---------+---------+---------+---------+-----
                                    10        20        30        40        50        60        70        80