Chance and necessity in chromosomal gene distributions

Details Chance and necessity in chromosomal gene distributions Chance and necessity in chromosomal gene distributions

2008-03-08

arxiv.org/abs/0803.1261v1

Biology

Quantitative Biology

Genomics

Main text plus supplementary text; 26 pages, 7 figures in total. To appear in TRENDS in Genetics (May 2008)

Scientific paper

By analyzing the spacing of genes on chromosomes, we find that transcriptional and RNA-processing regulatory sequences outside coding regions leave footprints on the distribution of intergenic distances. Using analogies between genes on chromosomes and one-dimensional gases, we constructed a statistical null model. We have used this to estimate typical upstream and downstream regulatory sequence sizes in various species. Deviations from this model reveal bi-directional transcriptional regulatory regions in S. cerevisiae and bi-directional terminators in E. coli.

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