Sequence alignment between 4zir(B) and UniProt seq Q9X1Z1 (ECFA1_THEMA):

Q9X1Z1 (ECFA1_THEMA): Energy-coupling factor transporter ATP-binding protein EcfA1 from Thermotoga maritima (strain ATCC 43589 / DSM 3109 / JCM 10099 / NBRC 100826 / MSB8)
                  10        20        30        40        50        60        70        80        90       100       110       120       130       140       150       160       170       180       190       200       210       220       230       240       250         
         ---------+---------+---------+---------+---------+---------+---------+---------+---------+---------+---------+---------+---------+---------+---------+---------+---------+---------+---------+---------+---------+---------+---------+---------+---------+---------
UniProt: -MKITLNSVSFRYNGDYVLKDVNAEFETGKIYVVVGKNGSGKTTLLKILAGLLEAEGEIFLDGSPADPFLLRKNVGYVFQNPSSQIIGATVEEDVAFSLEIMGLDESEMRKRIKKVLELVGLSGLEKEDPLNLSGGQKQRLAIASMLARDTRFLALDEPVSMLDPPSQREIFQVLESLKNEGKGIILVTHELEYLDDMDFILHISNGTIDFCGSWEEFVEREFDDVEIPFKWKLWKKCGKINLWEDRYENSGNQRRRDTV
         .XX.X................................................X.X.............................................XXX.....................XXX....................................................................................................................................
PDB seq: SGRIELNSVSFRYNGDYVLKDVNAEFETGKIYVVVGKNGSGKTTLLKILAGLLAAAGEIFLDGSPADPFLLRKNVGYVFQNPSSQIIGATVEEDVAFSLEI---DESEMRKRIKKVLELVGLSGLAAADPLNLSGGQKQRLAIASMLARDTRFLALDEPVSMLDPPSQREIFQVLESLKNEGKGIILVTHELEYLDDMDFILHISNGTIDFCGSWEEFVEREFDDVEIPFKWKLWKKCGKINLWEDRYEN----------
         ----------+---------+---------+---------+---------+---------+---------+---------+---------+---------+   ------+---------+---------+---------+---------+---------+---------+---------+---------+---------+---------+---------+---------+---------+---------          
                  10        20        30        40        50        60        70        80        90       100       110       120       130       140       150       160       170       180       190       200       210       220       230       240