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  • 1
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    A mutation in Ihh that causes digit abnormalities alters its signalling capacity and range (2009)
    Nature Publishing Group (NPG)
    Details
    Publication Date: 2009-03-03
    Description: Brachydactyly type A1 (BDA1) was the first recorded disorder of the autosomal dominant Mendelian trait in humans, characterized by shortened or absent middle phalanges in digits. It is associated with heterozygous missense mutations in indian hedgehog (IHH). Hedgehog proteins are important morphogens for a wide range of developmental processes. The capacity and range of signalling is thought to be regulated by its interaction with the receptor PTCH1 and antagonist HIP1. Here we show that a BDA1 mutation (E95K) in Ihh impairs the interaction of IHH with PTCH1 and HIP1. This is consistent with a recent paper showing that BDA1 mutations cluster in a calcium-binding site essential for the interaction with its receptor and cell-surface partners. Furthermore, we show that in a mouse model that recapitulates the E95K mutation, there is a change in the potency and range of signalling. The mice have digit abnormalities consistent with the human disorder.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Gao, Bo -- Hu, Jianxin -- Stricker, Sigmar -- Cheung, Martin -- Ma, Gang -- Law, Kit Fong -- Witte, Florian -- Briscoe, James -- Mundlos, Stefan -- He, Lin -- Cheah, Kathryn S E -- Chan, Danny -- MC_U117560541/Medical Research Council/United Kingdom -- England -- Nature. 2009 Apr 30;458(7242):1196-200. doi: 10.1038/nature07862. Epub 2009 Mar 1.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Biochemistry, the University of Hong Kong, Hong Kong, China.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/19252479" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Chickens ; DNA-Binding Proteins/genetics/metabolism ; Disease Models, Animal ; Female ; Hedgehog Proteins/*genetics/*metabolism ; Humans ; Limb Deformities, Congenital/*genetics/*metabolism ; Male ; Mice ; Mice, Inbred C57BL ; Mice, Mutant Strains ; Mutation/*genetics ; Protein Binding ; Receptors, Cell Surface/genetics/metabolism ; *Signal Transduction
    Print ISSN: 0028-0836
    Electronic ISSN: 1476-4687
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Published by Nature Publishing Group (NPG)
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  • 2
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    Analysis of Drosophila segmentation network identifies a JNK pathway factor overexpressed in kidney cancer (2009)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2009-01-24
    Description: We constructed a large-scale functional network model in Drosophila melanogaster built around two key transcription factors involved in the process of embryonic segmentation. Analysis of the model allowed the identification of a new role for the ubiquitin E3 ligase complex factor SPOP. In Drosophila, the gene encoding SPOP is a target of segmentation transcription factors. Drosophila SPOP mediates degradation of the Jun kinase phosphatase Puckered, thereby inducing tumor necrosis factor (TNF)/Eiger-dependent apoptosis. In humans, we found that SPOP plays a conserved role in TNF-mediated JNK signaling and was highly expressed in 99% of clear cell renal cell carcinomas (RCCs), the most prevalent form of kidney cancer. SPOP expression distinguished histological subtypes of RCC and facilitated identification of clear cell RCC as the primary tumor for metastatic lesions.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2756524/" target="_blank"〉〈img src="https://static.pubmed.gov/portal/portal3rc.fcgi/4089621/img/3977009" border="0"〉〈/a〉   〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2756524/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Liu, Jiang -- Ghanim, Murad -- Xue, Lei -- Brown, Christopher D -- Iossifov, Ivan -- Angeletti, Cesar -- Hua, Sujun -- Negre, Nicolas -- Ludwig, Michael -- Stricker, Thomas -- Al-Ahmadie, Hikmat A -- Tretiakova, Maria -- Camp, Robert L -- Perera-Alberto, Montse -- Rimm, David L -- Xu, Tian -- Rzhetsky, Andrey -- White, Kevin P -- P50 GM081892/GM/NIGMS NIH HHS/ -- P50 GM081892-01A1/GM/NIGMS NIH HHS/ -- R01 HG003012/HG/NHGRI NIH HHS/ -- R01 HG003012-04/HG/NHGRI NIH HHS/ -- UL1 RR024999/RR/NCRR NIH HHS/ -- UL1 RR024999-02/RR/NCRR NIH HHS/ -- New York, N.Y. -- Science. 2009 Feb 27;323(5918):1218-22. doi: 10.1126/science.1157669. Epub 2009 Jan 22.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Institute for Genomics and Systems Biology, University of Chicago and Argonne National Laboratory, Chicago, IL 60637, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/19164706" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; Animals ; Apoptosis ; Carcinoma, Renal Cell/*genetics/metabolism ; Cell Line ; Compound Eye, Arthropod/embryology/metabolism ; Drosophila Proteins/genetics/metabolism ; Drosophila melanogaster/embryology/*genetics/metabolism ; Embryo, Nonmammalian/metabolism ; Fushi Tarazu Transcription Factors/genetics/metabolism ; Gene Expression Profiling ; Gene Regulatory Networks ; Homeodomain Proteins/genetics/metabolism ; Humans ; Janus Kinases/*metabolism ; Kidney/metabolism ; Kidney Neoplasms/*genetics/metabolism ; Molecular Sequence Data ; Nervous System/embryology ; Nuclear Proteins/*genetics/metabolism ; Phosphoprotein Phosphatases/metabolism ; Phosphorylation ; Repressor Proteins/*genetics/metabolism ; *Signal Transduction ; Transcription Factors/genetics/metabolism ; Transcription, Genetic
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
    Published by American Association for the Advancement of Science (AAAS)
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