>tr|A0A2S7D2P7|A0A2S7D2P7_9XANT Small ribosomal subunit protein bS21 OS=Xanthomonas pisi GN=rpsU MPSVKVRENEPFEFALRRFKRTCEKAGVLAETRKREFYEKPTQERKRKAAAAVKRQLRRS SRDVTKRQRLY