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Volume 34 Issue 2, June 2003

Cover art: Photographer: mobiusco.com Vision of (left handed) DNA

Editorial

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Correspondence

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Obituary

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Book Review

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News & Views

  • A new study shows that a deletion-induced aberrant antisense transcript from a neighboring gene leads to methylation and silencing of the intact gene HBA2 (encoding human α-globin A2) in a family with α-thalassemia. Are there other chromosomal rearrangements that might turn off genes by such antisense-mediated cis-acting methylation?

    • Dirk A Kleinjan
    • Veronica van Heyningen
    News & Views
  • In a new study, the presence of a CpG island transgene protects neighboring sequence from DNA methylation during development leading to an open chromatin state that persists in the adult animal. This study suggests the importance of DNA methylation in setting up the epigenome.

    • Kye-Yoon Park
    • Karl Pfeifer
    News & Views
  • Many organisms have sexual recombination, yet its advantages are not fully understood. A new study of the fruit fly Drosophila miranda shows that recombination is essential for removing deleterious mutations from the genome and for allowing beneficial mutations to be incorporated.

    • Antonio Bernardo Carvalho
    News & Views
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Review Article

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Brief Communication

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Article

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Letter

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Corrigendum

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Erratum

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