>tr|A0A4R4JDG8|A0A4R4JDG8_9GAMM Small ribosomal subunit protein bS21 OS=Photorhabdus khanii subsp. guanajuatensis GN=rpsU MPVIKVRENEPFDVALRRFKRSCEKAGVLAEVRRREFYEKPTTERKRAKASAVKRHAKKL ARENARRTRLY