>tr|A0A3S7KB36|A0A3S7KB36_9GAMM Small ribosomal subunit protein bS21 OS=Stenotrophomonas sp. SAU14A_NAIMI4_5 GN=rpsU MPSVKVRENEPFEFALRRFKRTCEKAGVLAETRKREFYEKPTQERKRKAAAAVKRQLRRS SRDVTKRQRLY