Title : Egr-1 regulates the transcriptional repression of mouse δ-aminolevulinic acid synthase 1 by heme.

Pub. Date : 2011 Feb 1

PMID : 21044876






13 Functional Relationships(s)
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Compound Name
Protein Name
Organism
1 Egr-1 regulates the transcriptional repression of mouse delta-aminolevulinic acid synthase 1 by heme. Heme aminolevulinic acid synthase 1 Mus musculus
2 delta-Aminolevulinic acid synthase 1 (ALAS1) is the first and rate-limiting enzyme in the heme biosynthesis. Heme aminolevulinic acid synthase 1 Mus musculus
3 delta-Aminolevulinic acid synthase 1 (ALAS1) is the first and rate-limiting enzyme in the heme biosynthesis. Heme aminolevulinic acid synthase 1 Mus musculus
4 It has been well known that heme exerts a negative feedback control over the transcription of ALAS1 gene to maintain intracellular heme at appropriate level. Heme aminolevulinic acid synthase 1 Mus musculus
5 It has been well known that heme exerts a negative feedback control over the transcription of ALAS1 gene to maintain intracellular heme at appropriate level. Heme aminolevulinic acid synthase 1 Mus musculus
6 To clarify the mechanisms by which heme regulates the expression of ALAS1, we examined the promoter activity of the gene and identified the heme-responsive element (HRE) located in the proximal promoter of the mouse ALAS1 gene. Heme aminolevulinic acid synthase 1 Mus musculus
7 To clarify the mechanisms by which heme regulates the expression of ALAS1, we examined the promoter activity of the gene and identified the heme-responsive element (HRE) located in the proximal promoter of the mouse ALAS1 gene. Heme aminolevulinic acid synthase 1 Mus musculus
8 To clarify the mechanisms by which heme regulates the expression of ALAS1, we examined the promoter activity of the gene and identified the heme-responsive element (HRE) located in the proximal promoter of the mouse ALAS1 gene. Heme aminolevulinic acid synthase 1 Mus musculus
9 To clarify the mechanisms by which heme regulates the expression of ALAS1, we examined the promoter activity of the gene and identified the heme-responsive element (HRE) located in the proximal promoter of the mouse ALAS1 gene. Heme aminolevulinic acid synthase 1 Mus musculus
10 Reporter and EMSA assays revealed the sequence (GCGGGGGCG), as the site of repression by heme, at -301/-293bp of the ALAS1 promoter. Heme aminolevulinic acid synthase 1 Mus musculus
11 Subsequently, EMSA and ChIP assays showed that a transcription factor, early growth response 1 (Egr-1) and its major corepressors, NAB1 and NAB2 were found to bind to the ALAS1-HRE, and these bindings increased dependent on the level of intracellular heme. Heme aminolevulinic acid synthase 1 Mus musculus
12 These results suggest that Egr-1-NABs complex is involved in the regulation of the transcription of ALAS1 by heme, leading to the regulation of the heme biosynthesis. Heme aminolevulinic acid synthase 1 Mus musculus
13 These results suggest that Egr-1-NABs complex is involved in the regulation of the transcription of ALAS1 by heme, leading to the regulation of the heme biosynthesis. Heme aminolevulinic acid synthase 1 Mus musculus