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CEP41 is mutated in Joubert syndrome and is required for tubulin glutamylation at the cilium.

Ji Eun Lee | Jennifer L Silhavy | Maha S Zaki | Jana Schroth | Stephanie L Bielas | Sarah E Marsh | Jesus Olvera | Francesco Brancati | Miriam Iannicelli | Koji Ikegami | Andrew M Schlossman | Barry Merriman | Tania AttiƩ-Bitach | Clare V Logan | Ian A Glass | Andrew Cluckey | Carrie M Louie | Jeong Ho Lee | Hilary R Raynes | Isabelle Rapin | Ignacio P Castroviejo | Mitsutoshi Setou | Clara Barbot | Eugen Boltshauser | Stanley F Nelson | Friedhelm Hildebrandt | Colin A Johnson | Daniel A Doherty | Enza Maria Valente | Joseph G Gleeson
Nature genetics | 2012

Tubulin glutamylation is a post-translational modification that occurs predominantly in the ciliary axoneme and has been suggested to be important for ciliary function. However, its relationship to disorders of the primary cilium, termed ciliopathies, has not been explored. Here we mapped a new locus for Joubert syndrome (JBTS), which we have designated as JBTS15, and identified causative mutations in CEP41, which encodes a 41-kDa centrosomal protein. We show that CEP41 is localized to the basal body and primary cilia, and regulates ciliary entry of TTLL6, an evolutionarily conserved polyglutamylase enzyme. Depletion of CEP41 causes ciliopathy-related phenotypes in zebrafish and mice and results in glutamylation defects in the ciliary axoneme. Our data identify CEP41 mutations as a cause of JBTS and implicate tubulin post-translational modification in the pathogenesis of human ciliary dysfunction.

Pubmed ID: 22246503

Associated grants

  • Agency: NCRR NIH HHS, United States
    Id: S10 RR029130
  • Agency: NINDS NIH HHS, United States
    Id: P30NS047101
  • Agency: NICHD NIH HHS, United States
    Id: P01 HD070494-02
  • Agency: NIDDK NIH HHS, United States
    Id: R01DK068306
  • Agency: NINDS NIH HHS, United States
    Id: P30 NS047101-10
  • Agency: NIDDK NIH HHS, United States
    Id: R01 DK068306
  • Agency: NINDS NIH HHS, United States
    Id: R01NS064077
  • Agency: NIGMS NIH HHS, United States
    Id: T32 GM008666
  • Agency: NCRR NIH HHS, United States
    Id: S10 RR029130-01
  • Agency: NINDS NIH HHS, United States
    Id: R01NS048453
  • Agency: NINDS NIH HHS, United States
    Id: P30 NS047101
  • Agency: Howard Hughes Medical Institute, United States
  • Agency: NINDS NIH HHS, United States
    Id: R01 NS048453-08
  • Agency: NINDS NIH HHS, United States
    Id: R01 NS048453
  • Agency: Medical Research Council, United Kingdom
    Id: G0700073
  • Agency: NINDS NIH HHS, United States
    Id: R01 NS052455-06
  • Agency: Telethon, Italy
    Id: GGP08145
  • Agency: NINDS NIH HHS, United States
    Id: R01 NS052455
  • Agency: NICHD NIH HHS, United States
    Id: P01 HD070494
  • Agency: NINDS NIH HHS, United States
    Id: R01 NS064077
  • Agency: NINDS NIH HHS, United States
    Id: R01NS052455

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Clustal W2 (tool)

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THIS RESOURCE IS NO LONGER IN SERVICE, documented on January 19, 2022. Command line version of multiple sequence alignment program Clustal for DNA or proteins. Alignment is progressive and considers sequence redundancy. No longer being maintained. Please consider using Clustal Omega instead which accepts nucleic acid or protein sequences in multiple sequence formats NBRF/PIR, EMBL/UniProt, Pearson (FASTA), GDE, ALN/ClustalW, GCG/MSF, RSF.

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The American Heart Association (AHA) publishes medical scientific statements on various cardiovascular disease and stroke topics. AHA volunteer scientists and healthcare professionals write the papers. The statements are supported by scientific studies published in recognized journals and have a rigorous review and approval process. Scientific statements generally include a review of data available on a specific subject, an evaluation on its relationship to overall cardiovascular disease science, and often an American Heart Association position on the basis of that evaluation. The American Heart Association sponsors accredited scientific conferences and professional development seminars to disseminate new and emerging scientific knowledge and stimulate discussion on future research and the application of knowledge. Keywords: Heart, Cardiovascular, Disease, Stroke, Volunteer, Scientist, Healthcare, Development, Knowledge,

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Next generation sequencing and genotyping services provided to investigators working to discover genes that contribute to disease. On-site statistical geneticists provide insight into analysis issues as they relate to study design, data production and quality control. In addition, CIDR has a consulting agreement with the University of Washington Genetics Coordinating Center (GCC) to provide statistical and analytical support, most predominantly in the areas of GWAS data cleaning and methods development. Completed studies encompass over 175 phenotypes across 530 projects and 620,000 samples. The impact is evidenced by over 380 peer-reviewed papers published in 100 journals. Three pathways exist to access the CIDR genotyping facility: * NIH CIDR Program: The CIDR contract is funded by 14 NIH Institutes and provides genotyping and statistical genetic services to investigators approved for access through competitive peer review. An application is required for projects supported by the NIH CIDR Program. * The HTS Facility: The High Throughput Sequencing Facility, part of the Johns Hopkins Genetic Resources Core Facility, provides next generation sequencing services to internal JHU investigators and external scientists on a fee-for-service basis. * The JHU SNP Center: The SNP Center, part of the Johns Hopkins Genetic Resources Core Facility, provides genotyping to internal JHU investigators and external scientists on a fee-for-service basis. Data computation service is included to cover the statistical genetics services provided for investigators seeking to identify genes that contribute to human disease. Human Genotyping Services include SNP Genome Wide Association Studies, SNP Linkage Scans, Custom SNP Studies, Cancer Panel, MHC Panels, and Methylation Profiling. Mouse Genotyping Services include SNP Scans and Custom SNP Studies.

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RRID:IMSR_JAX:000664

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129P2/OlaHsd (tool)

RRID:MGI:2164147

laboratory mouse with name 129P2/OlaHsd from MGI.

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