>sp|C4KHU9|VATB_SULIK V-type ATP synthase beta chain OS=Sulfolobus islandicus GN=atpB MLSVREFSNISMIKGPLIYVQGVTDASYNELVEIEMPNGEKRRGLVIDSQMGIAIVQVFE GTTGVSPTGTKIRMLGRGLEVKISEEMLGRIFNPLGDSLDNGPPVIKGEKRDINGSPLNP AAREYPEEFIQTGISAIDGLNALLRGQKLPIFSGSGLPANMLAAQIAKQATVRGEESNFA VVFAAIGARYDDALFFRKFFEETGAINRVAMIVSLANEPPVMKTLTPKTALTLAEYLAFE QDMHVLAILIDMTNYCEALREISAAREEVPGRGGYPGYMYTDLATIYERAGKVLGKKGSI TQMPILTMPNDDITHPIPDLTGYITEGQIVLDRALYNKGIYPPINVLMSLSRLAKDGIGE GKTRDDHKDVSNQLFASYARAVDTRGLAAIIGEDSLSEVDRKYLLFGELFERKFVSQGFN ENRDIETTLDIGWEILSVLPESELTNIKTQYIKKYHPNYRGKK