>tr|A0A6I2I2T6|A0A6I2I2T6_9ENTR Small ribosomal subunit protein bS21 OS=Enterobacteriaceae bacterium RIT714 GN=rpsU MPVIKVRENEPFDVALRRFKRSCEKAGVLAEVRRREFYEKPTTERKRAKASAVKRHAKKL ARENARRTRLY