Sequence alignment between 2mca(A) and UniProt seq C4ZHE8 (C4ZHE8_AGARV):

C4ZHE8 (C4ZHE8_AGARV): DUF5300 domain-containing protein from Agathobacter rectalis (strain ATCC 33656 / DSM 3377 / JCM 17463 / KCTC 5835 / VPI 0990)
                 10        20        30        40        50        60        70        80        90       100       110       120       130   
         ---------+---------+---------+---------+---------+---------+---------+---------+---------+---------+---------+---------+---------+---
UniProt: MNKIIKKQVLATFALVTIMAGVLIGTNCIYAAQDGKETTTIRLINQTYFNVKNIKVTWNDGKEQTVNTLGSHDSIDFSSDAGSVYKMDVTGTTQSGEKFTGHFKGLVGKDTRVFIELDENADVQVFIPQGEID
         ..............................X......................................................................................................
PDB seq: ------------------------------GAQDGKETTTIRLINQTYFNVKNIKVTWNDGKEQTVNTLGSHDSIDFSSDAGSVYKMDVTGTTQSGEKFTGHFKGLVGKDTRVFIELDENADVQVFIPQGEID
                                       ---------+---------+---------+---------+---------+---------+---------+---------+---------+---------+---
                                               10        20        30        40        50        60        70        80        90       100