Hoffmann, R. A wiki for the life sciences where authorship matters. Nature Genetics (2008)

Editor

Personal info

View

About

Terms

Javascript disabled

Please enable Javascript support in your browser to use this application.

Instructions on how to enable JavaScript on different browsers can be found here: http://www.google.com/support/bin/answer.py?answer=23852.

[edit this page]

Flenniken, A.M. et al.

A Gja1 missense mutation in a mouse model of oculodentodigital dysplasia.

Oculodentodigital dysplasia (ODDD) is an autosomal dominant disorder characterized by pleiotropic developmental anomalies of the limbs, teeth, face and eyes that was shown recently to be caused by mutations in the gap junction protein alpha 1 gene (GJA1), encoding connexin 43 ( Cx43). In the course of performing an N-ethyl-N-nitrosourea mutagenesis screen, we identified a dominant mouse mutation that exhibits many classic symptoms of ODDD, including syndactyly, enamel hypoplasia, craniofacial anomalies and cardiac dysfunction. Positional cloning revealed that these mice carry a point mutation in Gja1 leading to the substitution of a highly conserved amino acid (G60S) in Cx43. In vivo and in vitro studies revealed that the mutant Cx43 protein acts in a dominant-negative fashion to disrupt gap junction assembly and function. In addition to the classic features of ODDD, these mutant mice also showed decreased bone mass and mechanical strength, as well as altered hematopoietic stem cell and progenitor populations. Thus, these mice represent an experimental model with which to explore the clinical manifestations of ODDD and to evaluate potential intervention strategies.[1]

References

A Gja1 missense mutation in a mouse model of oculodentodigital dysplasia. Flenniken, A.M., Osborne, L.R., Anderson, N., Ciliberti, N., Fleming, C., Gittens, J.E., Gong, X.Q., Kelsey, L.B., Lounsbury, C., Moreno, L., Nieman, B.J., Peterson, K., Qu, D., Roscoe, W., Shao, Q., Tong, D., Veitch, G.I., Voronina, I., Vukobradovic, I., Wood, G.A., Zhu, Y., Zirngibl, R.A., Aubin, J.E., Bai, D., Bruneau, B.G., Grynpas, M., Henderson, J.E., Henkelman, R.M., McKerlie, C., Sled, J.G., Stanford, W.L., Laird, D.W., Kidder, G.M., Adamson, S.L., Rossant, J. Development (2005) [Pubmed]

Annotations and hyperlinks in this abstract are from individual authors of WikiGenes or automatically generated by the WikiGenes Data Mining Engine. The abstract is from MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.About WikiGenes Open Access Licence Privacy Policy Terms of Use apsburg

The world's first wiki where authorship really matters (Nature Genetics, 2008). Due credit and reputation for authors. Imagine a global collaborative knowledge base for original thoughts. Search thousands of articles and collaborate with scientists around the globe.