About the Authors

Selina Wray

Affiliation Department of Molecular Neuroscience, University College London Institute of Neurology, London, United Kingdom

Matthew Self

Affiliation Coriell Institute for Medical Research, Camden, New Jersey, United States of America

NINDS Parkinson's Disease iPSC Consortium

Affiliation For a full list of the members of the NINDS Parkinson's Disease iPSC Consortium, NINDS Huntington's Disease iPSC Consortium, and NINDS ALS iPSC Consortium please see the Acknowledgments section

NINDS Huntington's Disease iPSC Consortium

Affiliation For a full list of the members of the NINDS Parkinson's Disease iPSC Consortium, NINDS Huntington's Disease iPSC Consortium, and NINDS ALS iPSC Consortium please see the Acknowledgments section

NINDS ALS iPSC Consortium

Affiliation For a full list of the members of the NINDS Parkinson's Disease iPSC Consortium, NINDS Huntington's Disease iPSC Consortium, and NINDS ALS iPSC Consortium please see the Acknowledgments section

Patrick A. Lewis

Affiliation Department of Molecular Neuroscience, University College London Institute of Neurology, London, United Kingdom

Jan-Willem Taanman

Affiliation Department of Clinical Neuroscience, University College London Institute of Neurology, London, United Kingdom

Natalie S. Ryan

Affiliation Dementia Research Centre, Department of Neurodegenerative Diseases, University College London Institute of Neurology, London, United Kingdom

Colin J. Mahoney

Affiliation Dementia Research Centre, Department of Neurodegenerative Diseases, University College London Institute of Neurology, London, United Kingdom

Yuying Liang

Affiliation Dementia Research Centre, Department of Neurodegenerative Diseases, University College London Institute of Neurology, London, United Kingdom

Michael J. Devine

Affiliation Department of Molecular Neuroscience, University College London Institute of Neurology, London, United Kingdom

Una-Marie Sheerin

Affiliation Department of Molecular Neuroscience, University College London Institute of Neurology, London, United Kingdom

Henry Houlden

Affiliation Department of Molecular Neuroscience, University College London Institute of Neurology, London, United Kingdom

Huw R. Morris

Affiliation Cardiff University School of Medicine, University of Cardiff, Cardiff, United Kingdom

Daniel Healy

Affiliation Department of Clinical Neuroscience, University College London Institute of Neurology, London, United Kingdom

Jose-Felix Marti-Masso

Affiliation Hospital Donastia, San Sebastian, Spain

Elisavet Preza

Affiliation Department of Molecular Neuroscience, University College London Institute of Neurology, London, United Kingdom

Suzanne Barker

Affiliation Dementia Research Centre, Department of Neurodegenerative Diseases, University College London Institute of Neurology, London, United Kingdom

Margaret Sutherland

Affiliation National Institute for Neurological Disorders and Stroke, National Institutes of Health, Bethesda, Maryland, United States of America

Roderick A. Corriveau

Affiliation National Institute for Neurological Disorders and Stroke, National Institutes of Health, Bethesda, Maryland, United States of America

Michael D'Andrea

Affiliation Coriell Institute for Medical Research, Camden, New Jersey, United States of America

Anthony H. V. Schapira

Affiliation Department of Clinical Neuroscience, University College London Institute of Neurology, London, United Kingdom

Ryan J. Uitti

Affiliation Departments of Neurology and Neuroscience, Mayo Clinic Jacksonville, Jacksonville, Florida, United States of America

Mark Guttman

Affiliation Department of Neurology, Center for Movement Disorders, Ontario, Canada

Grzegorz Opala

Affiliation Department of Neurology, Medical University of Silesia, Katowice, Poland

Barbara Jasinska-Myga

Affiliation Department of Neurology, Medical University of Silesia, Katowice, Poland

Andreas Puschmann

Affiliation Department of Geriatric Psychiatry, Lund University, Lund, Sweden

Christer Nilsson

Affiliation Department of Geriatric Psychiatry, Lund University, Lund, Sweden

Alberto J. Espay

Affiliation Department of Neurology, University of Cincinnati, Cincinnati, Ohio, United States of America

Jaroslaw Slawek

Affiliation Department of Neurological and Psychiatric Nursing, Medical University of Gdansk, Gdansk, Poland

Ludwig Gutmann

Affiliation Department of Neurology , West Virginia University, West Virginia, United States of America

Bradley F. Boeve

Affiliation Department of Neurology, Mayo Clinic, Rochester, Minnesota, United States of America

Kevin Boylan

Affiliation Departments of Neurology and Neuroscience, Mayo Clinic Jacksonville, Jacksonville, Florida, United States of America

A. Jon Stoessl

Affiliation Division of Neurology, Pacific Parkinson's Research Centre, University of British Columbia, Vancouver, British Columbia, Canada

Owen A. Ross

Affiliation Departments of Neurology and Neuroscience, Mayo Clinic Jacksonville, Jacksonville, Florida, United States of America

Nicholas J. Maragakis

Affiliation Department of Neurology and Neuroscience, School of Medicine, Johns Hopkins University, Baltimore, Maryland, United States of America

Jay Van Gerpen

Affiliation Departments of Neurology and Neuroscience, Mayo Clinic Jacksonville, Jacksonville, Florida, United States of America

Melissa Gerstenhaber

Affiliation Department of Psychiatry and Behavioural Sciences, John Hopkins University School of Medicine, Baltimore, Maryland, United States of America

Katrina Gwinn

Affiliation Baylor College of Medicine, Department of Genetics, Houston, Texas, United States of America

Ted M. Dawson

Affiliation Neuroregeneration Program, Institute of Cell Engineering, Department of Neurology and the Solomon H. Snyder Department of Neuroscience, John Hopkins University, Baltimore, Maryland, United States of America

Ole Isacson

Affiliation Center for Neuroregeneration Research, Harvard Medical School, Belmont, Massachusetts, United States of America

Karen S. Marder

Affiliation Department of Neurology, Psychiatry, Sergievsky Center, and Taub Institute, College of Physicians and Surgeons, Columbia University, New York, New York, United States of America

Lorraine N. Clark

Affiliation Department of Neurology, Psychiatry, Sergievsky Center, and Taub Institute, College of Physicians and Surgeons, Columbia University, New York, New York, United States of America

Serge E. Przedborski

Affiliation Center for Motor Neuron Biology and Diseases, Departments of Neurology, Pathology and Cell Biology, College of Physicians and Surgeons, Columbia University, New York, New York, United States of America

Steven Finkbeiner

Affiliation Gladstone Institute of Neurological Disease, Taube-Koret Center for Huntington's Disease Research, Departments of Neurology and Physiology, University of California San Francisco, San Francisco, California, United States of America

Jeffrey D. Rothstein

Affiliation Department of Psychiatry and Behavioural Sciences, John Hopkins University School of Medicine, Baltimore, Maryland, United States of America

Zbigniew K. Wszolek

Affiliation Departments of Neurology and Neuroscience, Mayo Clinic Jacksonville, Jacksonville, Florida, United States of America

Martin N. Rossor

Affiliation Dementia Research Centre, Department of Neurodegenerative Diseases, University College London Institute of Neurology, London, United Kingdom

John Hardy

j.hardy@ucl.ac.uk

Affiliation Department of Molecular Neuroscience, University College London Institute of Neurology, London, United Kingdom

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

Conceived and designed the experiments: JH MNR ZKW TMD KSM OI KG M. Self M. Sutherland SB. Performed the experiments: SW M. Self PAL JWT EP MJD LNC OAR. Analyzed the data: SW M. Self PAL JWT EP MJD LNC OAR. Contributed reagents/materials/analysis tools: NSR CJM UMS HH HRM DH JFMM AHVS RJU M. Guttman M. Gerstenhaber GO BJM AP CN AJE JS LG BB KB AJS NJM JVG TMD OI KSM SP SF JDR ZKW MNR YL. Wrote the paper: SW JH. Project management at NINDS repository: M. Sutherland RAC MD KG.