sp|Q4A127|HSDR_STAS1 Type I restriction enzyme SsaAORF53P endonuclease subunit OS=Staphylococcus saprophyticus subsp. saprophyticus (strain ATCC 15305 / DSM 20229 / NCIMB 8711 / NCTC 7292 / S-41) OX=342451 GN=hsdR PE=3 SV=1