>tr|A0A0U2UJH3|A0A0U2UJH3_9BURK Small ribosomal subunit protein bS21 OS=Paucibacter sp. KCTC 42545 GN=rpsU MTTIRVKENEPFDVALRRFKRTIEKLGLLTDLRAREFYEKPTAERKRKKAAAVKRHYKRV RSMQLPKKLY