>tr|A0A0E1X6S2|A0A0E1X6S2_STAAU Small ribosomal subunit protein bS21 OS=Staphylococcus aureus subsp. aureus MN8 GN=rpsU MSKTVVRKNESLEDALRRFKRSVSKSGTIQEVRKREFYEKPSVKRKKKSEAARKRKFK