GATAAG; a cis-control region binding an erythroid-specific nuclear factor with a role in globin and non-globin gene expression.
An erythroid-specific nuclear protein factor binds to a sequence motif (GATAAG) which is present in the promoter region of the mouse alpha and beta major globin genes, and in the erythroid-specific promoter of the human porphobilinogen deaminase (PBG-D) gene. The protein activity is conserved across species, being found in mouse erythroleukaemia (MEL) cells, chicken erythrocytes, the human erythroid K562 and KMOE cell lines, but not in a variety of non-erythroid mouse tissues or in HeLa cells. Functional analysis of this element in the alpha globin gene promoter by stable transfection experiments show that the GATAAG motif resides in a 68 bp sequence which has a stimulatory effect on transcription in mouse erythroleukaemia but not fibroblast cells. The GATAAG motif is conserved in the promoters and 3' enhancers of a variety of globin and non-globin genes implying that it is a cis-element involved in the tissue-specific up-regulation of several genes that are co-expressed during erythroid cell differentiation.
Plumb
M
M
Beatson Institute for Cancer Research, Glasgow, UK.
Frampton
J
J
Wainwright
H
H
Walker
M
M
Macleod
K
K
Goodwin
G
G
Harrison
P
P
D000818:Animals; D001483:Base Sequence; D002460:Cell Line; D002467:Cell Nucleus / Q000378:metabolism*; D002645:Chickens; D004268:DNA-Binding Proteins / Q000378:metabolism*; D004912:Erythrocytes / Q000378:metabolism; D050981:Erythroid-Specific DNA-Binding Factors; D005786:Gene Expression Regulation; D005796:Genes; D005914:Globins / Q000235:genetics*; D006801:Humans; D051379:Mice; D008969:Molecular Sequence Data; D010957:Plasmids; D011401:Promoter Regions, Genetic; D012689:Sequence Homology, Nucleic Acid; D014157:Transcription Factors
D004268:DNA-Binding Proteins; D050981:Erythroid-Specific DNA-Binding Factors; D014157:Transcription Factors; D005914:Globins