>tr|A0A2H4U595|A0A2H4U595_METSM Transcription initiation factor IIB OS=Methanobrevibacter smithii GN=tfb MQGDVYDKDKQTVCPECGSTELIGDYERAEVVCAHCGLVIDENLVDMGPEWRAFDHEQRD KRTRVGAPITYTIHDKGLSTMIDWRNKDIYGRDIPARNRAQWYRLRKWQRKIRISGATER NLAFALSELDRDSSRLGLPRSVREAASVVYRSAVDNKLIRGRSIEGVVAASLYAACRRCN VPRTLDEIAEVSRVTKKEVGRTYRFLTRELNIKLPPTSPVDYVPRFASELGLSGEAQSRA IEIIEKAMEKGLTSGRGPTGVAAAALYIASVLLGERKTQRDVADIAGVTEVTIRNRYKEL TEQLEMGVTL