>sp|C4KF50|SFSA_SULIK Sugar fermentation stimulation protein homolog OS=Sulfolobus islandicus GN=sfsA MKERDSRNQIGDLPFRVKEGFSVYEFIEQLYEANVVERINRFLVKVTFNGKEFLAHLHDP GRLKDLIYPGNLVLIRETKGYKTKFSITAAYSNSRFVVLDSRLHNIIASKFLPEAYEKEI KVGNSRIDFKYDNTYLEVKGCTLVENEIAYFPDAPTERGRRHLKELRELMKKGFNAILLI LVMRDDAKCFLPNEKTDPKFSIEFWNSIKEGLNVNIKTFKLVGNKIIYVRDIPLCKTNLT