title: Cloning of Nrf1, an NF-E2-related transcription factor, by genetic selection in yeast.
abstract: We have devised a complementation assay in yeast to clone mammalian transcriptional activators and have used it to identify a human basic leucine-zipper transcription factor that we have designated Nrf1 for NF-E2-related factor 1. Nrf1 potentially encodes a 742-aa protein and displays marked homology to the mouse and human NF-E2 transcription factors. Nrf1 activates transcription via NF-E2 binding sites in yeast cells. The ubiquitous expression pattern of Nrf1 and the range of promoters containing the NF-E2 binding motif suggest that this gene may play a role in the regulation of heme synthesis and ferritin genes.
authors.affiliation: Department of Laboratory Medicine, University of California, San Francisco 94143-0724.
authors.forename: J Y
authors.initials: JY
authors.lastname: Chan
authors.forename: X L
authors.initials: XL
authors.lastname: Han
authors.forename: Y W
authors.initials: YW
authors.lastname: Kan
mesh_terms: D000595:Amino Acid Sequence; D001483:Base Sequence; D003001:Cloning, Molecular; D018076:DNA, Complementary / Q000235:genetics; D004268:DNA-Binding Proteins / Q000235:genetics*; D004920:Erythropoiesis; D015870:Gene Expression; D005816:Genetic Complementation Test; D006801:Humans; D016350:Leucine Zippers; D008969:Molecular Sequence Data; D051265:NF-E2-Related Factor 1; D051266:Nuclear Respiratory Factor 1; D051264:Nuclear Respiratory Factors; D009838:Oligodeoxyribonucleotides / Q000737:chemistry; D012333:RNA, Messenger / Q000235:genetics; D012441:Saccharomyces cerevisiae; D016415:Sequence Alignment; D017386:Sequence Homology, Amino Acid; D014018:Tissue Distribution; D015534:Trans-Activators; D014157:Transcription Factors / Q000235:genetics*; D014158:Transcription, Genetic
chemical_list: D018076:DNA, Complementary; D004268:DNA-Binding Proteins; D051265:NF-E2-Related Factor 1; C495633:NRF1 protein, human; D051266:Nuclear Respiratory Factor 1; D051264:Nuclear Respiratory Factors; D009838:Oligodeoxyribonucleotides; D012333:RNA, Messenger; D015534:Trans-Activators; D014157:Transcription Factors