>sp|Q9X1U9|ATPF_THEMA ATP synthase subunit b OS=Thermotoga maritima GN=atpF MGFLEINWTSAAMLMLFVLMVYFLNKFLYTPFIEMAEKRRKKVEEDLKSAEQLKEEAEKM RSEAERFLSEARQRADEIVESARKEAEAIVEEAREKAKKEAQNIVESAKTQIEVEYKKAL EQVQERAAELSVILATKLLQKVFQDERARREYLVKILKEEIEKS