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Resources » Paper

Subirana JA et al. (2010) Nucleic Acids Res "The most frequent short sequences in non-coding DNA."

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  • Overview

    PMID:
    19966278
    DOI:
    10.1093/nar/gkp1094
    Status:
    Publication type:
    Journal_article
    WormBase ID:
    WBPaper00035523

    Subirana JA, & Messeguer X (2010). The most frequent short sequences in non-coding DNA. Nucleic Acids Res, 38, 1172-81. doi:10.1093/nar/gkp1094

    The purpose of this work is to determine the most frequent short sequences in non-coding DNA. They may play a role in maintaining the structure and function of eukaryotic chromosomes. We present a simple method for the detection and analysis of such sequences in several genomes, including Arabidopsis thaliana, Caenorhabditis elegans, Drosophila melanogaster and Homo sapiens. We also study two chromosomes of man and mouse with a length similar to the whole genomes of the other species. We provide a list of the most common sequences of 9-14 bases in each genome. As expected, they are present in human Alu sequences. Our programs may also give a graph and a list of their position in the genome. Detection of clusters is also possible. In most cases, these sequences contain few alternating regions. Their intrinsic structure and their influence on nucleosome formation are not known. In particular, we have found new features of short sequences in C. elegans, which are distributed in heterogeneous clusters. They appear as punctuation marks in the chromosomes. Such clusters are not found in either A. thaliana or D. melanogaster. We discuss the possibility that they play a role in centromere function and homolog recognition in meiosis.


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