>sp|A6Q4B9|ATPE_NITSB ATP synthase epsilon chain OS=Nitratiruptor sp. GN=atpC MDTLKLEIVTPEGLIFQGDVKSVTFPGEEGEFGVLPKHASLLSLLKPGVIEIELPDGKKE SIVINWGHVNVSENQATALVEGAVPLEGTTESEIAKKIEEAKKLIESASENKAALATVEA RIEKAAKIV