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Lookup NU author(s): Dr Emma Tonkin, Tzu-Jou Wang, Dr Steven LisgoORCiD, Professor Tom Strachan
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Cornelia de Lange syndrome (CdLS) is a multiple malformation disorder characterized by dysmorphic facial features, mental retardation, growth delay and limb reduction defects. We indentified and characterized a new gene, NIPBL, that is mutated in individuals with CdLS and determined its structure and the structures of mouse, rat and zebrafish homologs. We named its protein product delangin. Vertebrate delangins have substantial homology to orthologs in flies, worms, plants and fungi, including Scc2-type sister chromatid cohesion proteins, and D. melanogaster Nipped-B. We propose that perturbed delangin function may inappropriately activate DLX genes, thereby contributing to the proximodistal limb patterning defects in CdLS. Genome analyses typically identify individual delangin or Nipped-B-like orthologs in diploid animal and plant genomes. The evolution of an ancestral sister chromatid cohesion protein to acquire an additional role in developmental gene regulation suggests that there are parallels between CdLS and Roberts syndrome.
Author(s): Tonkin ET, Wang T-J, Lisgo S, Bamshad MJ, Strachan T
Publication type: Article
Publication status: Published
Journal: Nature Genetics
Year: 2004
Volume: 36
Issue: 6
Pages: 636-641
ISSN (print): 1061-4036
ISSN (electronic): 1546-1718
Publisher: Nature Publishing Group
URL: http://dx.doi.org/10.1038/ng1363
DOI: 10.1038/ng1363
PubMed id: 15146185
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