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Published on: December 19, 2011
Identification and characterization of cis-regulatory elements 'insulator and repressor' in PPARD gene
Dilip K Yadav1, Smeeta Shrestha1,2, Gunjan Dadhwal1,3
1Genomic Research on Complex Diseases (GRC Group), CSIR-Centre for Cellular & Molecular Biology, Hyderabad, Telangana, 500 007, India.
Aim:
Identification and functional characterization of cis-regulatory elements in human PPARD gene.
Methods:
We used various bioinformatic tools on the publicly available human genome and Encyclopedia of DNA Elements databases to explore potential cis-regulatory elements in PPARD gene region.
Results:
We predicted an insulator and an enhancer element in intron 2 of PPARD gene. Functional characterization using transient transfection, reporter assay and CTCF binding confirmed the insulator status. However, the predicted enhancer element showed repressor/silencer activity. Finally, we observed a potential interaction between these two cis-regulatory elements which is in agreement with 5C-Encyclopedia of DNA Elements data.
Conclusion:
We report two functionally validated cis-regulatory elements in PPARD gene which will aid in understanding its regulation and role in metabolic functions.
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