>sp|Q0T1B8|LUXS_SHIF8 S-ribosylhomocysteine lyase OS=Shigella flexneri serotype 5b GN=luxS MPLLDSFTVDHTRMEAPAVRVAKTMNTPHGDAITVFDLRFCVPNKEVMPERGSHTLEHLF AGFMRNHLNGNGVEIIDISPMGCRTGFYMSLIGTPDEQRVADAWKAAMEDVLKVQDQNQI PELNVYQCGTYQMHSLQEAQDIARSILERDVRINSNEELALPKEKLQELHI