>tr|A0A0R0A9P4|A0A0R0A9P4_9GAMM Small ribosomal subunit protein bS21 OS=Stenotrophomonas panacihumi GN=rpsU MPSVKVRENEPFEFALRRFKRTCEKAGVLAETRKREFYEKPTQERKRKAAAAVKRQLRRS SRDVTKRQRLY