EntityQ306436· pop 20· linked from 893 articlessigma factorSign in to saveclass of proteinsConnectionsenzymeEntityhomeoboxEntitygeneral transcription factor IIBEntityPDX1EntitybacteriaEntityeukaryoteEntitygeneEntitydigital object identifierEntityInternational Standard Serial NumberEntityEscherichia coliEntitychloroplastEntitydaltonEntityQ180686EntitytranscriptionEntitybibcodeEntitymolecular massEntityflagellumEntityQ229883EntityMedical Subject HeadingsEntitypromoterEntityCategoriesGene expressionProtein pages needing a picture