Study of Head-to-Head Gene Organization
Author Information
Author(s): Li Yuan-Yuan, Yu Hui, Guo Zong-Ming, Guo Ting-Qing, Tu Kang, Li Yi-Xue
Primary Institution: Shanghai Center for Bioinformation Technology
Hypothesis
The head-to-head gene organization is an ancient and conserved feature that influences transcriptional regulation.
Conclusion
The head-to-head gene organization is ancient and conserved, linking functionally related genes to correlated transcriptional regulation.
Supporting Evidence
- 1,262 head-to-head gene pairs were identified in the human genome.
- 62.36% of human head-to-head pairs have transcription start sites within 400 base pairs.
- Head-to-head gene pairs show significant expression correlation.
- Conservation of head-to-head gene organization was observed across vertebrates.
Takeaway
Some genes are arranged in pairs that face each other, and this arrangement helps them work together better.
Methodology
A systematic investigation of head-to-head gene organization focusing on structural features, evolutionary conservation, expression correlation, and functional association.
Limitations
The study may underestimate head-to-head genes in the rat genome due to limited mRNA and EST data.
Statistical Information
P-Value
p<0.05
Statistical Significance
p<0.05
Digital Object Identifier (DOI)
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