>sp|C3NGV2|VATB_SULIN V-type ATP synthase beta chain OS=Sulfolobus islandicus GN=atpB MLSVREFSNISMIKGPLIYVQGVTDASYNELVEIEMPNGEKRRGLVIDSQMGIAIVQVFE GTTGVSPTGTKIRMLGRGLEVKISEEMLGRIFNPLGDSLDNGPPVIKGEKRDINGSPLNP AAREYPEEFIQTGISAIDGLNALLRGQKLPIFSGSGLPANMLAAQIAKQATVRGEESNFA VVFAAIGARYDDALFFRKFFEETGAINRVAMIVSLANEPPVMKTLTPKTALTLAEYLAFE QDMHVLAILIDMTNYCEALREISAAREEVPGRGGYPGYMYTDLATIYERAGKVLGKKGSI TQMPILTMPNDDITHPIPDLTGYITEGQIVLDRALYNKGIYPPINVLMSLSRLAKDGIGE GKTRDDHKDVSNQLFASYARAVDTRGLAAIIGEDSLSEVDRKYLLFGELFERKFVSQGFN ENRDIETTLDIGWEILSVLPESELTNIKTQYIKKYHPNYRGKK