Assignment of the transcription factor GATA4 gene to human chromosome 8 and mouse chromosome 14: Gata4 is a candidate gene for Ds (disorganization)
- UMKC School of Medicine, Kansas City, MO (United States); and others
The authors report the mapping of the human and mouse genes from transcription factor GATA-4, a newly identified member of DNA-binding proteins involved in lineage determination. The human GATA4 gene was assigned to the short arm of human chromosome 8 using genomic DNAs from human-rodent somatic cell hybrid lines. Southern blot analyses indicated the presence of a human-specific 7.6-kb fragment that was observed only in DNA from the hybrid cells containing human chromosome 8 or the proximal region of its short arm. The mouse Gata4 gene was mapped to chromosome 14, closely linked to Clu (clusterin), using genomic DNAs from a (:C57BL/6J x Mus spretus)F{sub 1} x M.spretus backcross. This mapping assignment places the Gata4 gene in the vicinity of the mouse Ds (disorganization) locus, a dominant gain-of-function mutation affecting embryonic development. The authors speculate that Ds is caused by a mutation in the Gata4 gene, ectopic expression of GATA-4, or a mutation in another lineage determination gene closely linked to Gata4. 42 refs., 4 figs., 1 tab.
- OSTI ID:
- 114889
- Journal Information:
- Genomics, Journal Name: Genomics Journal Issue: 1 Vol. 27; ISSN 0888-7543; ISSN GNMCEP
- Country of Publication:
- United States
- Language:
- English
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