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Gene expression is generally regulated by multiple transcription factors (TFs). Despite previous findings of individual TFs regulating pancreatic α-amylase gene expression, the combinatorial transcriptional regulation is not fully understood. To gain insight into multiple TF regulation for pancreatic α-amylase gene, we employed a function conservation approach to predict interacting TFs regulating pancreatic α-amylase gene for 3 dietary animal groups. To this end, we have identified 77, 25, and 118 interacting TFs for herbivore, omnivore, and carnivore, respectively. Computational modeling of TF regulatory networks demonstrated that known pancreas-specific TFs (e.g. GR, NFAT, and PR) may play important roles in recruiting non pancreas-specific TFs to the TF-TF interaction networks, offering specificity and flexibility for controlling pancreatic α-amylase gene expression in different dietary animal groups. The findings from this study indicate that combinatorial transcriptional regulation could be a critical component controlling pancreatic α-amylase gene expression.
This article was published in the following journal.
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Nucleotide sequences of a gene that are involved in the regulation of GENETIC TRANSCRIPTION.
A class of untranslated RNA molecules that are typically greater than 200 nucleotides in length and do not code for proteins. Members of this class have been found to play roles in transcriptional regulation, post-transcriptional processing, CHROMATIN REMODELING, and in the epigenetic control of chromatin.
An 11-kDa AT-hook motif-containing (AT-HOOK MOTIFS) protein that binds to the minor grove of AT-rich regions of DNA. It is the full-length product of the alternatively-spliced HMGA1 gene and may function as an architectural chromatin binding protein that is involved in transcriptional regulation.
Interruption or suppression of the expression of a gene at transcriptional or translational levels.
An AT-hook motif-containing protein (AT-HOOK MOTIFS) that binds to the minor grove of AT-rich regions of DNA. It is a truncated form of HMGA1a protein that is produced by alternative-splicing of the HMGA1 gene. It may function as an architectural chromatin binding protein that is involved in transcriptional regulation.
Bioinformatics is the application of computer software and hardware to the management of biological data to create useful information. Computers are used to gather, store, analyze and integrate biological and genetic information which can then be applied...