>tr|A0A4P6HKP4|A0A4P6HKP4_9BACT Small ribosomal subunit protein bS21 OS=Solidesulfovibrio carbinolicus GN=rpsU MPGVYLEESDNFDVALRRFKKQVEKSGILSELKKRQHFEKPSVMRKKKKAAARKRLLKKM RKINMM