>tr|A0A3R7EZG5|A0A3R7EZG5_9BURK Small ribosomal subunit protein bS21 OS=Alicycliphilus denitrificans GN=rpsU MTTIRVKENEPFDVALRRFKRTIEKLGLLTDLRAREFYEKPTAERKRKKAAAVKRHYKRV RSMQLPKKLY