sp|Q49VZ4|Y1921_STAS1 Epimerase family protein SSP1921 OS=Staphylococcus saprophyticus subsp. saprophyticus (strain ATCC 15305 / DSM 20229 / NCIMB 8711 / NCTC 7292 / S-41) OX=342451 GN=SSP1921 PE=3 SV=1