>tr|A0A1D2RQN7|A0A1D2RQN7_9GAMM Small ribosomal subunit protein bS21 OS=Arenimonas sp. SCN 70-307 GN=rpsU MPSVKVRENEPFEFALRRFKRTCEKAGVLAETRKREFYEKPTQERKRKAAAAVKRQLRRS SRDVTKRQRLY