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Related Experiment Videos

Isolation of cDNA encoding the human NF-E2 protein

J Y Chan1, X L Han, Y W Kan

  • 1Department of Laboratory Medicine, University of California, San Francisco 94143-0724.

Proceedings of the National Academy of Sciences of the United States of America
|December 1, 1993
PubMed
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Researchers identified the human NF-E2 protein, a DNA-binding regulator. Its expression in various tissues suggests roles beyond blood cell development, impacting genes in the colon and testis.

Area of Science:

  • Molecular Biology
  • Genetics
  • Cell Biology

Background:

  • NF-E2 is a transcription factor regulating gene expression.
  • Basic leucine-zipper proteins form a large family of DNA-binding proteins.

Purpose of the Study:

  • To isolate and characterize the human homolog of mouse NF-E2.
  • To investigate the expression patterns of human NF-E2 in various tissues.

Main Methods:

  • K562 cell line was used for isolation of human NF-E2.
  • Amino acid sequencing and homology comparison with Nrf1 were performed.
  • Human tissue samples were surveyed for NF-E2 mRNA expression.

Main Results:

  • Human NF-E2 encodes a basic leucine-zipper DNA-binding protein, highly similar to its mouse counterpart.

Related Experiment Videos

  • NF-E2 and Nrf1 share homology, suggesting membership in a distinct subfamily.
  • High NF-E2 mRNA levels were found in erythroleukemic cell lines.
  • NF-E2 expression was detected in colon and testis, indicating broader regulatory functions.

    • Conclusions:

    • Human NF-E2 is a transcription factor with potential roles in erythropoiesis and other cellular processes.
    • NF-E2's expression in non-erythropoietic tissues suggests involvement in regulating diverse gene sets, including those in the colon and testis.