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Methods to Discover Alternative Promoter Usage and Transcriptional Regulation of Murine Bcrp1
Published on: May 27, 2016
The human RAP250 gene: genomic structure and promoter analysis
Per Antonson1, Farah Al-Beidh, Jason Matthews
1Department of Biosciences at Novum, Karolinska Institutet, Novum, S-14157 Huddinge, Sweden. per.antonson@cbt.ki.se
Gene
|February 26, 2004
Summary
Researchers characterized the human RAP250 gene, identifying its complex 15-exon structure and promoter region. This coactivator is crucial for nuclear receptor function and gene activation.
Area of Science:
- Molecular Biology
- Genetics
- Biochemistry
Background:
- Nuclear receptors mediate gene activation via coactivator recruitment.
- RAP250 (coactivator ASC-2/PRIP/TRBP/NRC/AIB3) is essential for nuclear receptor function.
Purpose of the Study:
- To determine the genomic organization of the human RAP250 gene.
- To identify and characterize the RAP250 promoter region.
Main Methods:
- GenBank database search for EST sequences.
- Linkage analysis for mouse Rap250 gene localization.
- Reporter gene assays (luciferase) to assess promoter activity.
- Bioinformatic analysis of promoter sequence.
Main Results:
- The human RAP250 gene comprises 15 exons, spanning 111 kb.
- The RAP250 promoter is GC-rich, TATA-less, and contains Sp1 and MYC binding sites.
- Reporter assays confirmed significant promoter activity regulated by transcription factors.
Conclusions:
- RAP250 exhibits a complex genomic structure.
- The RAP250 promoter is regulated by multiple transcription factors for basal expression.
- Understanding RAP250's genomic organization provides insights into gene regulation.
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