>tr|A0A0R0A9C5|A0A0R0A9C5_9GAMM Small ribosomal subunit protein bS21 OS=Stenotrophomonas pictorum JCM 9942 GN=rpsU MPSVKVRENEPFEFALRRFKRTCEKAGVLAETRKREFYEKPTQERKRKAAAAVKRQLRRS SRDVTKRQRLY