TFCONES: a database of vertebrate transcription factor-encoding genes and their associated conserved noncoding...

Area of Science:

• Genomics
• Bioinformatics
• Molecular Biology

Background:

• Transcription factors (TFs) are crucial regulators of gene expression.
• Identifying cis-regulatory elements is key to understanding gene regulatory networks.
• Comparative genomics offers a powerful approach to identify these elements.

Purpose of the Study:

• To identify putative cis-regulatory elements associated with TF-encoding genes in vertebrates.
• To create a centralized database of TF-encoding genes and their associated conserved noncoding elements (CNEs).

Main Methods:

• Utilized a comparative genomics approach using MLAGAN for gene-by-gene alignments of orthologous TF-encoding gene loci.
• Developed the TFCONES database (http://tfcones.fugu-sg.org) integrating human, mouse, and fugu TF genes and CNEs.
• Predicted transcription factor binding sites within identified CNEs.

Main Results:

• The TFCONES database contains TF-encoding genes and associated CNEs from human, mouse, and fugu.
• A significant portion of human-fugu CNEs contain experimentally validated binding sites, suggesting regulatory function.
• TF-encoding genes involved in nervous system development show enrichment for human-fugu CNEs.

Conclusions:

• The identified CNEs in TFCONES represent a prioritized catalog of putative cis-regulatory elements for TF-encoding genes.
• These CNEs are strong candidates for subsequent functional assays.
• The TFCONES database facilitates research into gene regulatory networks involving transcription factors.