>tr|A0A077PTB9|A0A077PTB9_XENBV Small ribosomal subunit protein bS21 OS=Xenorhabdus bovienii str. kraussei Becker Underwood GN=rpsU MPVIKVRENEPFDVALRRFKRSCEKAGVLAEVRRREFYEKPTTERKRAKASAVKRHAKKL ARENARRTRLY