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Willim J, Woike D, Greene D, Das S, Pfeifer K, Yuan W, Lindsey A, Itani O, Böhme AL, Tibbe D, Hönck HH, Hassani Nia F, Zech M, Brunet T, Faivre L, Sorlin A, Vitobello A, Smol T, Colson C, Baranano K, Schatz K, Bayat A, Schoch K, Spillmann R, Davis EE, Conboy E, Vetrini F, Platzer K, Neuser S, Gburek-Augustat J, Grace AN, Mitchell B, Stegmann A, Sinnema M, Meeks N, Saunders C, Cadieux-Dion M, Hoyer J, Van-Gils J, de Sainte-Agathe JM, Thompson ML, Bebin EM, Weisz-Hubshman M, Tabet AC, Verloes A, Levy J, Latypova X, Harder S, Silverman GA, Pak SC, Schedl T, Freson K, Mumford A, Turro E, Schlein C, Shashi V, Kreienkamp HJ. Variants in LRRC7 lead to intellectual disability, autism, aggression and abnormal eating behaviors. Nat Commun 2024; 15:7909. [PMID: 39256359 PMCID: PMC11387733 DOI: 10.1038/s41467-024-52095-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2023] [Accepted: 08/27/2024] [Indexed: 09/12/2024] Open
Abstract
Members of the leucine rich repeat (LRR) and PDZ domain (LAP) protein family are essential for animal development and histogenesis. Densin-180, encoded by LRRC7, is the only LAP protein selectively expressed in neurons. Densin-180 is a postsynaptic scaffold at glutamatergic synapses, linking cytoskeletal elements with signalling proteins such as the α-subunit of Ca2+/calmodulin-dependent protein kinase II. We have previously observed an association between high impact variants in LRRC7 and Intellectual Disability; also three individual cases with variants in LRRC7 had been described. We identify here 33 individuals (one of them previously described) with a dominant neurodevelopmental disorder due to heterozygous missense or loss-of-function variants in LRRC7. The clinical spectrum involves intellectual disability, autism, ADHD, aggression and, in several cases, hyperphagia-associated obesity. A PDZ domain variant interferes with synaptic targeting of Densin-180 in primary cultured neurons. Using in vitro systems (two hybrid, BioID, coimmunoprecipitation of tagged proteins from 293T cells) we identified new candidate interaction partners for the LRR domain, including protein phosphatase 1 (PP1), and observed that variants in the LRR reduced binding to these proteins. We conclude that LRRC7 encodes a major determinant of intellectual development and behaviour.
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Affiliation(s)
- Jana Willim
- Institute of Human Genetics, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - Daniel Woike
- Institute of Human Genetics, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - Daniel Greene
- Icahn School of Medicine at Mount Sinai, New York, NY, USA
| | - Sarada Das
- Institute of Human Genetics, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - Kevin Pfeifer
- Institute of Human Genetics, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - Weimin Yuan
- Department of Pediatrics, Washington University in St Louis School of Medicine, St Louis, MO, USA
| | - Anika Lindsey
- Department of Pediatrics, Washington University in St Louis School of Medicine, St Louis, MO, USA
| | - Omar Itani
- Department of Pediatrics, Washington University in St Louis School of Medicine, St Louis, MO, USA
| | - Amber L Böhme
- Institute of Human Genetics, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - Debora Tibbe
- Institute of Human Genetics, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - Hans-Hinrich Hönck
- Institute of Human Genetics, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - Fatemeh Hassani Nia
- Institute of Human Genetics, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - Michael Zech
- Institute of Human Genetics, School of Medicine, Technical University of Munich, Munich, Germany
- Institute of Neurogenomics, Helmholtz Zentrum München, Munich, Germany
- Institute for Advanced Study, Technical University of Munich, Garching, Germany
| | - Theresa Brunet
- Institute of Human Genetics, School of Medicine, Technical University of Munich, Munich, Germany
- Institute of Neurogenomics, Helmholtz Zentrum München, Munich, Germany
| | - Laurence Faivre
- Centre de Génétique et Centre de Référence Anomalies du Développement et Syndromes Malformatifs, FHU TRANSLAD, CHU Dijon-Bourgogne, Dijon, France
- INSERM-Université de Bourgogne-UMR1231 GAD, Dijon, France
| | - Arthur Sorlin
- INSERM-Université de Bourgogne-UMR1231 GAD, Dijon, France
- Laboratoire de Génomique médicale, Centre NEOMICS, CHU Dijon Bourgogne, Dijon, France
| | - Antonio Vitobello
- INSERM-Université de Bourgogne-UMR1231 GAD, Dijon, France
- Laboratoire de Génomique médicale, Centre NEOMICS, CHU Dijon Bourgogne, Dijon, France
| | - Thomas Smol
- Univ. Lille, CHU Lille, ULR7364 - RADEME, Lille, France
| | - Cindy Colson
- Univ. Lille, CHU Lille, ULR7364 - RADEME, Lille, France
| | - Kristin Baranano
- Department of Neurology, Johns Hopkins University School of Medicine, Baltimore, MD, USA
| | - Krista Schatz
- Department of Genetic Medicine, Johns Hopkins University School of Medicine, Baltimore, MD, USA
| | - Allan Bayat
- Department of Epilepsy Genetics and Personalized Medicine, Danish Epilepsy Center, Dianalund, Denmark
- Department for Regional Health Research, University of Southern Denmark, Odense, Denmark
- Department of Drug Design and Pharmacology, University of Copenhagen, Copenhagen, Denmark
| | - Kelly Schoch
- Division of Medical Genetics, Department of Pediatrics, Duke University School of Medicine, Durham, NC, USA
| | - Rebecca Spillmann
- Division of Medical Genetics, Department of Pediatrics, Duke University School of Medicine, Durham, NC, USA
| | - Erica E Davis
- Center for Human Disease Modeling, Duke University Medical Center, Durham, NC, USA
- Stanley Manne Children's Research Institute, Ann & Robert H. Lurie Children's Hospital of Chicago, Chicago, IL, USA
- Departments of Pediatrics and Cell and Developmental Biology, Feinberg School of Medicine, Northwestern University, Chicago, IL, USA
| | - Erin Conboy
- Indiana University School of Medicine, Indianapolis, IN, USA
| | | | - Konrad Platzer
- Institute of Human Genetics, University of Leipzig Medical Center, Leipzig, Germany
| | - Sonja Neuser
- Institute of Human Genetics, University of Leipzig Medical Center, Leipzig, Germany
| | - Janina Gburek-Augustat
- Division of Neuropaediatrics, Hospital for Children and Adolescents, University of Leipzig Medical Center, Leipzig, Germany
| | - Alexandra Noel Grace
- Molecular and Human Genetics Department, Baylor College of Medicine, Houston, TX, USA
| | - Bailey Mitchell
- Baylor College of Medicine in San Antonio, San Antonio, TX, USA
| | - Alexander Stegmann
- Department of Clinical Genetics, Maastricht University Medical Center, Maastricht, The Netherlands
| | - Margje Sinnema
- Department of Clinical Genetics, Maastricht University Medical Center, Maastricht, The Netherlands
| | - Naomi Meeks
- Children's Hospital Colorado, Division of Clinical Genetics & Metabolism, Aurora, CO, USA
| | - Carol Saunders
- Department of Pathology and Laboratory Medicine, Children's Mercy Hospital, Kansas City, MO, USA
- School of Medicine, University of Missouri Kansas City, Kansas City, MO, USA
- Genomic Medicine Center, Children's Mercy Research Institute, Kansas City, MO, USA
| | - Maxime Cadieux-Dion
- Department of Pathology and Laboratory Medicine, Children's Mercy Hospital, Kansas City, MO, USA
| | - Juliane Hoyer
- Institute of Human Genetics, Friedrich-Alexander-Universität Erlangen-Nürnberg, Erlangen, Germany
| | - Julien Van-Gils
- Genetics Lab, Centre Hospitalier Universitaire (CHU) de Bordeaux, Bordeaux, France
| | | | | | | | - Monika Weisz-Hubshman
- Molecular and Human Genetics Department, Baylor College of Medicine, Houston, TX, USA
- Texas Children's Hospital, Houston, Tx, USA
| | - Anne-Claude Tabet
- Department of Genetics, APHP-Robert Debré University Hospital, Paris, France
| | - Alain Verloes
- Department of Genetics, APHP-Robert Debré University Hospital, Paris, France
| | - Jonathan Levy
- Department of Genetics, APHP-Robert Debré University Hospital, Paris, France
| | - Xenia Latypova
- Department of Genetics, APHP-Robert Debré University Hospital, Paris, France
| | - Sönke Harder
- Mass spectrometry and Proteome Analytics, Institute for Clinical Chemistry and Laboratory Medicine, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - Gary A Silverman
- Department of Pediatrics, Washington University in St Louis School of Medicine, St Louis, MO, USA
| | - Stephen C Pak
- Department of Pediatrics, Washington University in St Louis School of Medicine, St Louis, MO, USA
| | - Tim Schedl
- Department of Genetics, Washington University in St Louis School of Medicine, St Louis, MO, USA
| | - Kathleen Freson
- Department of Cardiovascular Sciences, Center for Molecular and Vascular Biology, KU Leuven, Leuven, Belgium
| | - Andrew Mumford
- School of Cellular and Molecular Medicine, University of Bristol, Bristol, UK
| | - Ernest Turro
- Icahn School of Medicine at Mount Sinai, New York, NY, USA
| | - Christian Schlein
- Institute of Human Genetics, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - Vandana Shashi
- Division of Medical Genetics, Department of Pediatrics, Duke University School of Medicine, Durham, NC, USA
| | - Hans-Jürgen Kreienkamp
- Institute of Human Genetics, University Medical Center Hamburg-Eppendorf, Hamburg, Germany.
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