The GATA site-dependent hemogen promoter is transcriptionally regulated by GATA1 in hematopoietic and leukemia cells

Yang, L. V., Wan, J., Ge, Y., Fu, Z., Kim, S. Y., Fujiwara, Y., Taub, J. W., Matherly, L. H., Eliason, J., Li, L. (2006) The GATA site-dependent hemogen promoter is transcriptionally regulated by GATA1 in hematopoietic and leukemia cells. Leukemia, 20 (3). pp. 417-425. ISSN 08876924

URL: https://www.ncbi.nlm.nih.gov/pubmed/16437149
DOI: 10.1038/sj.leu.2404105

Abstract

Hemgn (a gene symbol for hemogen in mouse, EDAG in human and RP59 in rat) encodes a nuclear protein that is highly expressed in hematopoietic tissues and acute leukemia. To characterize its regulatory mechanisms, we examined the activities of a Hemgn promoter containing 2975bp of 5? flanking sequence and 196bp of 5? untranslated region (5? UTR) sequence both in vitro and in vivo: this promoter is preferentially activated in a hematopoietic cell line, not in nonhematopoietic cell lines, and is sufficient to drive the transcription of a lacZ transgene in hematopoietic tissues in transgenic mice. Mutagenesis analyses showed that the 5? UTR including two highly conserved GATA boxes is critical for the promoter activity. GATA1, not GATA2, binds to the GATA binding sites and transactivates the Hemgn promoter in a dose-dependent manner. Furthermore, the expression of human hemogen (EDAG) transcripts were closely correlated with levels of GATA1 transcripts in primary acute myeloid leukemia specimens. This study suggests that the Hemgn promoter contains critical regulatory elements for its transcription in hematopoietic tissues and Hemgn is a direct target of GATA1 in leukemia cells. © 2006 Nature Publishing Group All rights reserved.

Item Type: Paper
Subjects: bioinformatics > genomics and proteomics > genetics & nucleic acid processing > DNA, RNA structure, function, modification > transcription
bioinformatics > genomics and proteomics > genetics & nucleic acid processing > DNA, RNA structure, function, modification > genes, structure and function > genes: types > Hemgn
organs, tissues, organelles, cell types and functions > cell types and functions > cell types > hematopoietic cell
organs, tissues, organelles, cell types and functions > cell types and functions > cell types > hematopoietic cell
organs, tissues, organelles, cell types and functions > cell types and functions > cell types > hematopoietic cell

diseases & disorders > cancer > cancer types > leukemia
CSHL Authors:
Communities: CSHL labs > Mills lab
Depositing User: CSHL Librarian
Date: 2006
Date Deposited: 05 Dec 2011 21:37
Last Modified: 01 May 2018 14:41
Related URLs:
URI: http://repository.cshl.edu/id/eprint/22939

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