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Copy number polymorphism in Fcgr3 predisposes to glomerulonephritis in rats and humans

Aitman, Timothy J. and Dong, Rong and Vyse, Timothy J. and Norsworthy, Penny J. and Johnson, Michelle D. and Smith, Jennifer and Mangion, Jonathan and Roberton-Lowe, Cheri and Marshall, Amy J. and Petretto, Enrico and Hodges, Matt and Bhangal, Gurjeet and Patel, Sheetal G. and Sheehan-Rooney, Kelly and Duda, Mark and Cook, Paul R. and Evans, David J. and Domin, Jan and Flint, Jonathan and Boyle, Joseph J. and Pusey, Charles D. and Cook, H. Terence (2006) Copy number polymorphism in Fcgr3 predisposes to glomerulonephritis in rats and humans. Nature, 439. pp. 851-855. ISSN 0028-0836

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Abstract

Identification of the genes underlying complex phenotypes and the definition of the evolutionary forces that have shaped eukaryotic genomes are among the current challenges in molecular genetics1, 2, 3. Variation in gene copy number is increasingly recognized as a source of inter-individual differences in genome sequence and has been proposed as a driving force for genome evolution and phenotypic variation3, 4, 5. Here we show that copy number variation of the orthologous rat and human Fcgr3 genes is a determinant of susceptibility to immunologically mediated glomerulonephritis. Positional cloning identified loss of the newly described, rat-specific Fcgr3 paralogue, Fcgr3-related sequence (Fcgr3-rs), as a determinant of macrophage overactivity and glomerulonephritis in Wistar Kyoto rats. In humans, low copy number of FCGR3B, an orthologue of rat Fcgr3, was associated with glomerulonephritis in the autoimmune disease systemic lupus erythematosus. The finding that gene copy number polymorphism predisposes to immunologically mediated renal disease in two mammalian species provides direct evidence for the importance of genome plasticity in the evolution of genetically complex phenotypes, including susceptibility to common human disease.

Item Type: Article
Journal or Publication Title: Nature
Uncontrolled Keywords: copy number polymorphism ; Fcgr3 ; glomerulonephritis
Subjects:
Departments: Faculty of Health and Medicine > Biomedical & Life Sciences
ID Code: 65569
Deposited By: ep_importer_pure
Deposited On: 11 Jul 2013 11:14
Refereed?: Yes
Published?: Published
Last Modified: 21 Sep 2017 05:43
Identification Number:
URI: http://eprints.lancs.ac.uk/id/eprint/65569

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