>tr|A0A2U1URK7|A0A2U1URK7_9GAMM Small ribosomal subunit protein bS21 OS=Brenneria nigrifluens DSM 30175 = ATCC 13028 GN=rpsU MPVIKVRENEPFDVALRRFKRSCEKAGVLAEVRRREFYEKPTTERKRAKASAVKRHAKKL ARENARRTRLY