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Open Access Green möglich sobald Postprint bei der ZB eingereicht worden ist.
Endogenous retroviral insertion in Cryge in the mouse No3 cataract mutant.
Genomics 89, 512-520 (2007)
No3 (nuclear opacity 3) is a novel congenital nuclear cataract in mice. Microsatellite mapping placed the No3 locus on chromosome 1 between D1Mit480 (32cM) and D1Mit7 (41cM), a region containing seven crystallin genes; Cryba2 and the Cryga-Crygf cluster. Although polymorphic variants were observed, no candidate mutations were found for six of the genes. However, DNA walking identified a murine endogenous retrovirus (IAPLTR1: ERVK) insertion in exon 3 of Cryge, disrupting the coding sequence for gammaE-crystallin. Recombinant protein for the mutant gammaE was completely insoluble. The No3 cataract is mild compared with the effects of similar mutations of gammaE. Quantitative RT-PCR showed that gammaE/F mRNA levels are reduced in No3, suggesting that the relatively mild phenotype results from suppression of gammaE levels due to ERVK insertion. However, the severity of cataract is also strain dependent suggesting that genetic background modifiers also play a role in the development of opacity.
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Publikationstyp
Artikel: Journalartikel
Dokumenttyp
Wissenschaftlicher Artikel
Schlagwörter
Cataract; Crystallin; Endogenous retrovirus
ISSN (print) / ISBN
0888-7543
e-ISSN
1089-8646
Zeitschrift
Genomics
Quellenangaben
Band: 89,
Heft: 4,
Seiten: 512-520
Verlag
Elsevier
Nichtpatentliteratur
Publikationen
Begutachtungsstatus
Peer reviewed
Institut(e)
Institute of Human Genetics (IHG)