>sp|Q2FXZ7|RS21_STAA8 Small ribosomal subunit protein bS21 OS=Staphylococcus aureus (strain NCTC 8325 / PS 47) OX=93061 GN=rpsU PE=1 SV=1 MSKTVVRKNESLEDALRRFKRSVSKSGTIQEVRKREFYEKPSVKRKKKSEAARKRKFK