TF-finder: a software package for identifying transcription factors involved in biological processes using microarray data and existing knowledge base

BMC Bioinformatics
Xiaoqi CuiHairong Wei

Abstract

Identification of transcription factors (TFs) involved in a biological process is the first step towards a better understanding of the underlying regulatory mechanisms. However, due to the involvement of a large number of genes and complicated interactions in a gene regulatory network (GRN), identification of the TFs involved in a biology process remains to be very challenging. In reality, the recognition of TFs for a given a biological process can be further complicated by the fact that most eukaryotic genomes encode thousands of TFs, which are organized in gene families of various sizes and in many cases with poor sequence conservation except for small conserved domains. This poses a significant challenge for identification of the exact TFs involved or ranking the importance of a set of TFs to a process of interest. Therefore, new methods for recognizing novel TFs are desperately needed. Although a plethora of methods have been developed to infer regulatory genes using microarray data, it is still rare to find the methods that use existing knowledge base in particular the validated genes known to be involved in a process to bait/guide discovery of novel TFs. Such methods can replace the sometimes-arbitrary process of selectio...Continue Reading

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Related Concepts

Computer Programs and Programming
Transcription Factor
Conserved Sequence
Arabidopsis thaliana <plant>
Arabidopsis thaliana Proteins
Gene Modules
Conserved Sequence
Gene Expression
Genes
Genes, Regulator

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