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. 1987 Oct 26;15(20):8531–8545. doi: 10.1093/nar/15.20.8531

Computer modelling of DNA structures involved in chromosome maintenance.

T T Eckdahl 1, J N Anderson 1
PMCID: PMC306376  PMID: 3671091

Abstract

Sequence-dependent DNA bending of synthetic and natural molecules was studied by computer analysis. Modelling of synthetic oligonucleotides and of 107 kb of natural sequences gave results which closely resembled published electrophoretic data, demonstrating the powerful predictive capacity of the procedure. The analysis was extended to the study of DNA structures involved in chromosome maintenance. Centromeric DNAs from yeast were found to have sequences in their functional elements which cause them to be unusually straight. Autonomous replicating sequences were found to have two structural domains, one consisting of unusually straight sequences surrounding the consensus and the other of bending elements in flanking DNA. In addition to a structural homology, centromeric and autonomous replicating sequences share common sequence elements. These observations show that computer modelling of natural sequences is a viable approach to the study of the biological implications of alternative DNA structures.

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Selected References

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