>A4XKS3|S-methyl-5-thioribose-1-phosphate isomerase|EC 5.3.1.23|Caldicellulosiruptor saccharolyticus (strain ATCC 43494 / DSM 8903 / Tp8T 6331)|Swiss-Prot MKHFEFENDKLIVLDQRKLPFEKEYFVCSTYQDVYIAIKDMIIRGAPLIGIVAAYGVVLG FKEIIEKNMDSAKIYEILNYLANSRPTAVNLFWALERMKKVFEEARNLSKSQIYSLLMQE AKKIEDEDKSINKKIGEHGNTLIKEGANILTHCNAGALATGGYGTALGVIREAFFAGKNI HVYVDETRPYLQGARLTAFELSEDGIPNTVICDNMAGYLMKLGKIDCVIVGADRIALNGD TANKIGTYSLSVLAKHHGIPFYISAPISTIDFNIKSGSEIPIEERSEDEIRFFNGKKIVP DESKVFNPAFDVTPAENITAIITEKGVVFPPFEENISKLKEK