ArticleTransgenic research2016
Analysis of compound heterozygotes reveals that the mouse floxed Pax6 (tm1Ued) allele produces abnormal eye phenotypes.
Article in Transgenic research, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 2 papers.
What it found
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
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Who cites it
2 citing papers in PubMed.
- An unexpected tumor-resistant phenotype from floxing PAK1 in a mouse model of colitis associated cancer.Scientific reports · 2025Article
- A conditional Pax6 depletion study with no morphological effect on the adult mouse corneal epithelium.BMC research notes · 2018Article
Corrections and comments
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Authors and funding
7 authors.
Funding
Abstract
Analysis of abnormal phenotypes produced by different types of mutations has been crucial for our understanding of gene function. Some floxed alleles that retain a neomycin-resistance selection cassette (neo cassette) are not equivalent to wild-type alleles and provide useful experimental resources. Pax6 is an important developmental gene and the aim of this study was to determine whether the floxed Pax6 (tm1Ued) (Pax6 (fl) ) allele, which has a retained neo cassette, produced any abnormal eye phenotypes that would imply that it differs from the wild-type allele. Homozygous Pax6 (fl/fl) and heterozygous Pax6 (fl/+) mice had no overt qualitative eye abnormalities but morphometric analysis showed that Pax6 (fl/fl) corneas tended be thicker and smaller in diameter. To aid identification of weak effects, we produced compound heterozygotes with the Pax6 (Sey-Neu) (Pax6 (-)) null allele. Pax6 (fl/-) compound heterozygotes had more severe eye abnormalities than Pax6 (+/-) heterozygotes, implying that Pax6 (fl) differs from the wild-type Pax6 (+) allele. Immunohistochemistry showed that the Pax6 (fl/-) corneal epithelium was positive for keratin 19 and negative for keratin 12, indicating that it was abnormally differentiated. This Pax6 (fl) allele provides a useful addition to the existing Pax6 allelic series and this study demonstrates the utility of using compound heterozygotes with null alleles to unmask cryptic effects of floxed alleles.
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