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Tarpey P, Thomas S, Sarvananthan N, Mallya U, Lisgo S, Talbot CJ, Roberts EO, Awan M, Surendran M, McLean RJ, Reinecke RD, Langmann A, Lindner S, Koch M, Woodruff G, Gale R, Degg C, Droutsas K, Asproudis I, Zubcov AA, Pieh C, Veal CD, Machado RD, Backhouse OC, Baumber L, Jain S, Constantinescu CS, Brodsky MC, Hunter DG, Hertle RW, Read RJ, Edkins S, O’Meara S, Parker A, Stevens C, Teague J, Wooster R, Futreal PA, Trembath RC, Stratton MR, Raymond FL, Gottlob I. Mutations in FRMD7, a newly identified member of the FERM family, cause X-linked idiopathic congenital nystagmus. Nat Genet 2006; 38:1242-4. [PMID: 17013395 PMCID: PMC2592600 DOI: 10.1038/ng1893] [Citation(s) in RCA: 130] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2006] [Accepted: 09/01/2006] [Indexed: 11/09/2022]
Abstract
Idiopathic congenital nystagmus is characterized by involuntary, periodic, predominantly horizontal oscillations of both eyes. We identified 22 mutations in FRMD7 in 26 families with X-linked idiopathic congenital nystagmus. Screening of 42 singleton cases of idiopathic congenital nystagmus (28 male, 14 females) yielded three mutations (7%). We found restricted expression of FRMD7 in human embryonic brain and developing neural retina, suggesting a specific role in the control of eye movement and gaze stability.
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Affiliation(s)
- P Tarpey
- Wellcome Trust Sanger Institute, Hinxton Cambridge CB10 1SA UK
| | - S Thomas
- Ophthalmology Group, School of Medicine, University of Leicester, RKCSB, PO Box 65, Leicester, LE2 7LX, UK
| | - N Sarvananthan
- Ophthalmology Group, School of Medicine, University of Leicester, RKCSB, PO Box 65, Leicester, LE2 7LX, UK
| | - U Mallya
- Cambridge Institute for Medical Research, Addenbrookes Hospital Cambridge CB2 2XY UK
| | - S Lisgo
- Institute of Human Genetics, International Centre for Life, Newcastle University, Newcastle upon Tyne, NE1 7RU, UK
| | - CJ Talbot
- Department of Genetics, University of Leicester, University Road, Leicester LE1 7RH, UK
| | - EO Roberts
- Ophthalmology Group, School of Medicine, University of Leicester, RKCSB, PO Box 65, Leicester, LE2 7LX, UK
| | - M Awan
- Ophthalmology Group, School of Medicine, University of Leicester, RKCSB, PO Box 65, Leicester, LE2 7LX, UK
| | - M Surendran
- Ophthalmology Group, School of Medicine, University of Leicester, RKCSB, PO Box 65, Leicester, LE2 7LX, UK
| | - RJ McLean
- Ophthalmology Group, School of Medicine, University of Leicester, RKCSB, PO Box 65, Leicester, LE2 7LX, UK
| | - RD Reinecke
- Foerderer Eye Movement Centre for Children, Wills Eye Hospital, Philadelphia, Pennsylvania, 19107 USA
| | - A Langmann
- Medical University Graz, Department of Ophthalmology, Auenbruggerplatz 4, 8036, Graz, Austria
| | - S Lindner
- Medical University Graz, Department of Ophthalmology, Auenbruggerplatz 4, 8036, Graz, Austria
| | - M Koch
- Medical University Graz, Department of Ophthalmology, Auenbruggerplatz 4, 8036, Graz, Austria
| | - G Woodruff
- Royal Preston Hospital, Sharoe Green Lane North, Fulwood, Preston, Lancashire PR2 9HT
| | - R Gale
- Ophthalmology, Leeds General Infirmary, Leeds, LS1 3EX, UK
| | - C Degg
- Department of Medical Physics, University Hospitals of Leicester, Leicester, LE1 5WW, UK
| | - K Droutsas
- Department of Ophthalmology, Justus-Liebig-University, 35392 Giessen, Germany
| | - I Asproudis
- Department of Ophthalmology, Medical Faculty, University Hospital of Ioannina, 45110 Ioannina, Greece
| | - AA Zubcov
- University Eye Hospital, Johann-Wolfgang-Goethe-Universität, Theodor-Stern-Kai 7, 60590 Frankfurt/Main, Germany
| | - C Pieh
- University Eye Hospital, Killianstr. 5, 79106 Freiburg, Germany
| | - CD Veal
- Department of Genetics, University of Leicester, University Road, Leicester LE1 7RH, UK
| | - RD Machado
- Division of Genetics and Molecular Medicine, King’s College London SE1 9RT, UK
| | - OC Backhouse
- Ophthalmology, Leeds General Infirmary, Leeds, LS1 3EX, UK
| | - L Baumber
- Department of Genetics, University of Leicester, University Road, Leicester LE1 7RH, UK
- Division of Genetics and Molecular Medicine, King’s College London SE1 9RT, UK
| | - S Jain
- Royal Preston Hospital, Sharoe Green Lane North, Fulwood, Preston, Lancashire PR2 9HT
| | - CS Constantinescu
- Division of Clinical Neurology, School of Medical and Surgical Sciences, University of Nottingham, Nottingham, NG7 2UH, UK
| | - MC Brodsky
- Arkansas Children’s Hospital, 800 Marshall, Little Rock, Arkansas 72202, UK
| | - DG Hunter
- Department of Ophthalmology, Children’s Hospital Boston, Harvard Medical School, Boston, Mass 02115, USA
| | - RW Hertle
- University of Pittsburgh Medical Centre, Division of Paediatric Ophthalmology, Children’s Hospital of Pittsburgh, 3705 Fifth Avenue, Pittsburgh, PA 15213, USA
| | - RJ Read
- Cambridge Institute for Medical Research, Addenbrookes Hospital Cambridge CB2 2XY UK
| | - S Edkins
- Wellcome Trust Sanger Institute, Hinxton Cambridge CB10 1SA UK
| | - S O’Meara
- Wellcome Trust Sanger Institute, Hinxton Cambridge CB10 1SA UK
| | - A Parker
- Wellcome Trust Sanger Institute, Hinxton Cambridge CB10 1SA UK
| | - C Stevens
- Wellcome Trust Sanger Institute, Hinxton Cambridge CB10 1SA UK
| | - J Teague
- Wellcome Trust Sanger Institute, Hinxton Cambridge CB10 1SA UK
| | - R Wooster
- Wellcome Trust Sanger Institute, Hinxton Cambridge CB10 1SA UK
| | - PA Futreal
- Wellcome Trust Sanger Institute, Hinxton Cambridge CB10 1SA UK
| | - RC Trembath
- Division of Genetics and Molecular Medicine, King’s College London SE1 9RT, UK
| | - MR Stratton
- Wellcome Trust Sanger Institute, Hinxton Cambridge CB10 1SA UK
| | - FL Raymond
- Cambridge Institute for Medical Research, Addenbrookes Hospital Cambridge CB2 2XY UK
- Joint senior authors and corresponding authors and
| | - I Gottlob
- Ophthalmology Group, School of Medicine, University of Leicester, RKCSB, PO Box 65, Leicester, LE2 7LX, UK
- Joint senior authors and corresponding authors and
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Veal CD, Clough RL, Barber RC, Mason S, Tillman D, Ferry B, Jones AB, Ameen M, Balendran N, Powis SH, Burden AD, Barker JN, Trembath RC. Identification of a novel psoriasis susceptibility locus at 1p and evidence of epistasis between PSORS1 and candidate loci. J Med Genet 2001; 38:7-13. [PMID: 11134234 PMCID: PMC1734710 DOI: 10.1136/jmg.38.1.7] [Citation(s) in RCA: 102] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
Abstract
The pathogenesis of all forms of psoriasis remains obscure. Segregation analysis and twin studies together with ethnic differences in disease frequency all point to an underlying genetic susceptibility to psoriasis, which is both complex and likely to reflect the action of a number of genes. We performed a genome wide analysis using a total of 271 polymorphic autosomal markers on 284 sib relative pairs identified within 158 independent families. We detected evidence for linkage at 6p21 (PSORS1) with a non-parametric linkage score (NPL)=4.7, p=2 x 10(-6) and at chromosome 1p (NPL=3.6, p=1.9 x 10(-4)) in all families studied. Significant excess (p=0. 004) paternal allele sharing was detected for markers spanning the PSORS1 locus. A further three regions reached NPL scores of 2 or greater, including a region at chromosome 7 (NPL 2.1), for which linkage for a number of autoimmune disorders has been reported. Partitioning of the data set according to allele sharing at 6p21 (PSORS1) favoured linkage to chromosomes 2p (NPL 2.09) and 14q (NPL 2.0), both regions implicated in previous independent genome scans, and suggests evidence for epistasis between PSORS1 and genes at other genomic locations. This study has provided linkage evidence in favour of a novel susceptibility locus for psoriasis and provides evidence of the complex mechanisms underlying the genetic predisposition to this common skin disease.
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Affiliation(s)
- C D Veal
- Division of Medical Genetics, Departments of Medicine and Genetics, University of Leicester, Adrian Building, Leicester LE1 7RH, UK
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Jackson SN, Pinkney J, Bargiotta A, Veal CD, Howlett TA, McNally PG, Corral R, Johnson A, Trembath RC. A defect in the regional deposition of adipose tissue (partial lipodystrophy) is encoded by a gene at chromosome 1q. Am J Hum Genet 1998; 63:534-40. [PMID: 9683602 PMCID: PMC1377312 DOI: 10.1086/301971] [Citation(s) in RCA: 38] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022] Open
Abstract
Partial lipodystrophy (PLD), also known as "Dunnigan-Kobberling syndrome," is transmitted as a highly penetrant autosomal dominant disorder that is characterized by a dramatic absence of adipose tissue in the limbs and trunk, more evident in females than in males. In contrast, fat is retained on the face, in retro-orbital space, and at periserous sites. Associated metabolic abnormalities, including insulin resistance, hyperinsulinemia, and dyslipidemia, are referred to as "metabolic syndrome X" (Reaven 1988). Despite the intense interest in the genetic determinants underlying fat deposition, the genes involved in the lipodystrophic syndromes have not been identified. We ascertained two multigeneration families, with a combined total of 18 individuals with PLD, and performed a genomewide search. We obtained conclusive evidence for linkage of the PLD locus to microsatellite markers on chromosome 1q21 (D1S498, maximum LOD score 6.89 at recombination fraction .00), with no evidence of heterogeneity. Haplotype and multipoint analysis support the location of the PLD locus within a 21.2-cM chromosomal region that is flanked by the markers D1S2881 and D1S484. These data represent an important step in the effort to isolate and characterize the PLD gene. The identification of the gene will have important implications for the understanding of both developmental and metabolic aspects of the adipocyte and may prove useful as a single-gene model for the common metabolic disorder known as "syndrome X."
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Affiliation(s)
- S N Jackson
- Department of Genetics and Department of Medicine and Therapeutics, University of Leicester, Leicester, United Kingdom
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