>sp|C3N6D4|VATB_SULIA V-type ATP synthase beta chain OS=Sulfolobus islandicus GN=atpB MLSVREFSNISMIKGPLIYVQGVTDASYNELVEIEMPNGEKRRGLVIDSQMGIAIVQVFE GTTGVSPTGTKIRMLGRGLEVKISEEMLGRIFNPLGDSLDNGPPVIKGEKRDINGSPLNP AAREYPEEFIQTGISAIDGLNALLRGQKLPIFSGSGLPANMLAAQIAKQATVRGEESNFA VVFAAIGARYDDALFFRKFFEETGAINRVAMIVSLANEPPVMKTLTPKTALTLAEYLAFE QDMHVLAILIDMTNYCEALREISAAREEVPGRGGYPGYMYTDLATIYERAGKVLGKKGSI TQMPILTMPNDDITHPIPDLTGYITEGQIVLDRALYNKGIYPPINVLMSLSRLAKDGIGE GKTRDDHKDVSNQLFASYARAVDTRGLAAIIGEDSLSEVDRKYLLFGELFERKFVSQGFN ENRDIETTLDIGWEILSVLPESELTNIKTQYIKKYHPNYRGKK