>sp|Q74MP5|PSB_NANEQ Proteasome subunit beta OS=Nanoarchaeum equitans (strain Kin4-M) OX=228908 GN=psmB PE=3 SV=1
MTTIIGIKARDGVVLASDKQASMGNIVEDKRAQKIIPITDYILLAGSGTVADLQHIAKIL
KTELKLRELYSRRTMNVIEAANLLSHLLYQNRFYLNPLGLLIAGPINSKEFGIYSLDGIG
AISEIKDYFAEGSGGVIALGTLEAEYNPDITVRDAIKLAEKALKSSIARDVFSGYGIEIY
TITKKGVEKLFLEAQK