title: Universal internucleotide statistics in full genomes: a footprint of the DNA structure and packaging?
abstract: Uncovering the fundamental laws that govern the complex DNA structural organization remains challenging and is largely based upon reconstructions from the primary nucleotide sequences. Here we investigate the distributions of the internucleotide intervals and their persistence properties in complete genomes of various organisms from Archaea and Bacteria to H. Sapiens aiming to reveal the manifestation of the universal DNA architecture. We find that in all considered organisms the internucleotide interval distributions exhibit the same [Formula: see text]-exponential form. While in prokaryotes a single [Formula: see text]-exponential function makes the best fit, in eukaryotes the PDF contains additionally a second [Formula: see text]-exponential, which in the human genome makes a perfect approximation over nearly 10 decades. We suggest that this functional form is a footprint of the heterogeneous DNA structure, where the first [Formula: see text]-exponential reflects the universal helical pitch that appears both in pro- and eukaryotic DNA, while the second [Formula: see text]-exponential is a specific marker of the large-scale eukaryotic DNA organization.
authors.affiliation: Radio Systems Department & Biomedical Engineering Research Center, Saint Petersburg Electrotechnical University, Saint Petersburg, Russia.
authors.forename: Mikhail I
authors.initials: MI
authors.lastname: Bogachev
authors.affiliation: Department of Genetics & Institute of Fundamental Medicine and Biology, Kazan (Volga Region) Federal University, Kazan, Tatarstan, Russia.
authors.forename: Airat R
authors.initials: AR
authors.lastname: Kayumov
authors.affiliation: Institut für Theoretische Physik, Justus-Liebig-Universität Giessen, Giessen, Hessen, Germany.
authors.forename: Armin
authors.initials: A
authors.lastname: Bunde
mesh_terms: D001483:Base Sequence; D042003:DNA Packaging; D019641:DNA, Archaeal / Q000235:genetics*; D004269:DNA, Bacterial / Q000235:genetics*; D030541:Databases, Genetic; D020745:Genome, Archaeal / Q000235:genetics; D016680:Genome, Bacterial / Q000235:genetics; D023281:Genomics; D006801:Humans; D008969:Molecular Sequence Data; D009711:Nucleotides / Q000235:genetics*
chemical_list: D019641:DNA, Archaeal; D004269:DNA, Bacterial; D009711:Nucleotides