>tr|A0A6P2F1P4|A0A6P2F1P4_9BURK Small ribosomal subunit protein bS21 OS=Variovorax sp. PBL-E5 GN=rpsU MTTIRVKENEPFDVALRRFKRTIEKLGLLTDLRAREFYEKPTAERKRKKAAAVKRHYKRV RSMQLPKKLY