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Planar cell polarity (PCP) signaling controls the global orientation of surface structures, such as hairs and bristles, in both vertebrates and invertebrates. In Frizzled6(-/-) (Fz6(-/-)) mice, hair follicle orientations on the head and back are nearly random at birth, but reorient during early postnatal development to eventually generate a nearly parallel anterior-to-posterior array. We report the identification of a naturally occurring exon 5 deletion in Astrotactin2 (Astn2) that acts as a recessive genetic modifier of the Fz6(-/-) hair patterning phenotype. A genetically engineered Astn2 exon 5 deletion recapitulates the modifier phenotype. In Fz6(-/-);Astn2(ex5del/del) mice, hair orientation on the back is subtly biased from posterior-to-anterior, leading to a 180-degree orientation reversal in mature mice. These experiments suggest that Astn2, an endosomal membrane protein, modulates PCP signaling.
Pubmed ID: 26418459
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Software program for mapping quantitative trait loci in experimental crosses. (entry from Genetic Analysis Software)
View all literature mentionsA software package for performing 2D microscope image processing and integrating and controlling a diverse array of instrumentation in a laboratory environment. The software suite has four basic areas of operation acquisition, image presentation, and storage, analysis, and automation.
View all literature mentionsInformational portal that aggregates information about databases for next gen sequencing.
View all literature mentionsMus musculus with name C57BL/6J from IMSR.
View all literature mentionsMus musculus with name 129X1/SvJ from IMSR.
View all literature mentionslaboratory mouse with name 129S6/SvEvTac from MGI.
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