>tr|A0A0T6W6R6|A0A0T6W6R6_9GAMM Small ribosomal subunit protein bS21 OS=Marinobacter sp. P4B1 GN=rpsU MPAVKVKENEPFDVALRRFKRSCEKAGVLSEVRRREHYEKPTAVRKRKAAAAVKRHLKKL QREQRKFERLY