PlumX Metrics
Embed PlumX Metrics

The Mouse GATA-2 Gene is Expressed in the Para-Aortic Splanchnopleura and Aorta-Gonads and Mesonephros Region

Blood, ISSN: 0006-4971, Vol: 93, Issue: 12, Page: 4196-4207
1999
  • 95
    Citations
  • 0
    Usage
  • 63
    Captures
  • 0
    Mentions
  • 0
    Social Media
Metric Options:   Counts1 Year3 Year

Metrics Details

  • Citations
    95
    • Citation Indexes
      95
  • Captures
    63

Article Description

We previously reported that the mouse GATA-2 gene is regulated by two alternative promoters (Minegishi et al, J Biol Chem, 273:3625, 1998). Although the more proximal IG (general) promoter is active in almost all GATA-2–expressing cells, the distal IS (specific) promoter activity was selectively detected in hematopoietic tissues but not in other mesodermal tissues. We report here in vivo analysis of the GATA-2 locus and its regulatory characteristics in hematopoietic tissues of transgenic mice. Transgenes containing 6 or 7 kbp of sequence flanking the 5′ end of the IS first exon direct expression of β-galactosidase or green fluorescent protein (GFP) reporter genes specifically to the para-aortic splanchnopleura, aorta-gonads, and mesonephros (AGM) region, and in the neural tissues. In situ hybridization analysis showed that reporter gene expression specifically recapitulates the endogenous expression profile of GATA-2 in these tissues. The flk-1, CD34, c-kit, and CD45 antigens were identified in the GFP-positive cells from the AGM region and fetal liver, indicating that GATA-2 is expressed in immature hematopoietic cells. Deletion of 3.5 kbp from the 5′ end of the 6.0 kbp IS promoter construct, including one of the DNase I hypersensitive sites, completely abolished hematopoietic expression. These experiments describe an early developmental GATA-2 hematopoietic enhancer located between 6.0 and 2.5 kbp 5′ to the IS exon.

Bibliographic Details

Naoko Minegishi; Jun Ohta; Hironori Yamagiwa; Norio Suzuki; Shimako Kawauchi; Yinghui Zhou; Satoru Takahashi; Norio Hayashi; James Douglas Engel; Masayuki Yamamoto

American Society of Hematology

Biochemistry, Genetics and Molecular Biology; Immunology and Microbiology; Medicine

Provide Feedback

Have ideas for a new metric? Would you like to see something else here?Let us know