Abstract
Mutations in the Gli3 gene are associated with a preaxial polydactyly in several mouse mutants such as extra-toes (Xt). The semidominant mouse mutant Pdn (Polydactyly Nagoya) is characterized by a mild polydactyly on the anterior side of the hind limbs. Homozygous Pdn mice show a more severe polydactyly, additional skeletal malformations, and abnormal brain development. Herein, we report the molecular basis of Pdn, being the integration of an Early Transposon (ETn) into the Gli3 gene. As a consequence, several novel Gli3 mRNAs are generated by alternatively spliced transcripts.
Publication types
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Research Support, Non-U.S. Gov't
MeSH terms
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Amino Acid Sequence
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Animals
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Base Sequence
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DNA, Complementary
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DNA-Binding Proteins / genetics*
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Kruppel-Like Transcription Factors
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Mice
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Mice, Inbred C3H
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Mice, Mutant Strains
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Mutation*
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Nerve Tissue Proteins*
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Polydactyly / genetics*
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RNA, Messenger / genetics
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Repressor Proteins*
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Retroelements*
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Transcription Factors / genetics*
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Xenopus Proteins*
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Zinc Finger Protein Gli3
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Zinc Fingers
Substances
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DNA, Complementary
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DNA-Binding Proteins
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GLI3 protein, Xenopus
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GLI3 protein, human
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Gli3 protein, mouse
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Kruppel-Like Transcription Factors
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Nerve Tissue Proteins
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RNA, Messenger
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Repressor Proteins
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Retroelements
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Transcription Factors
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Xenopus Proteins
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Zinc Finger Protein Gli3