>tr|A0A4P7R9M3|A0A4P7R9M3_9BURK Small ribosomal subunit protein bS21 OS=Hydrogenophaga sp. PAMC20947 GN=rpsU MTTIRVKDNEPFDVALRRFKRTIEKLGLLTDLRAREFYEKPTAERKRKKAAAVKRNYKRI RAMQLPKKLY