>tr|W4S7V3|W4S7V3_9XANT Small ribosomal subunit protein bS21 OS=Xanthomonas arboricola pv. pruni str. MAFF 311562 GN=rpsU MPSVKVRENEPFEFALRRFKRTCEKAGVLAETRKREFYEKPTQERKRKAAAAVKRQLRRS SRDVTKRQRLY