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The Reelin-Dab1 pathway plays important roles in the development of central nervous system. In the autosomal recessive mutant mouse yotari, there is a replacement of a part of Dab1 gene with a long interspersed nuclear element fragment, and it was previously suggested that no protein derived from this gene was present. We here show that an aberrant fragment of Dab1 protein (p64/60) is present in the brain of yotari mouse. The amount of p64/60 is relatively abundant in the embryonic stages and decreased in the postnatal ones. Unlike wild-type Dab1 protein, p64/60 is not phosphorylated by Fyn kinase and localizes considerably to the nucleus. These data suggested that some phenotypes of yotari may be attributable to the presence of p64/60. It also raises a caveat that a tissue from yotari is not a perfect control for immunostaining of Dab1 protein. Copyright © 2014 Elsevier Ireland Ltd and the Japan Neuroscience Society. All rights reserved.


Aya Onoue, Mari Takeuchi, Takao Kohno, Mitsuharu Hattori. Aberrant fragment of Dab1 protein is present in yotari mouse. Neuroscience research. 2014 Nov;88:23-7

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PMID: 25149914

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