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J Med Genet ; 35(12): 989-92, 1998 Dec.
Article in English | MEDLINE | ID: mdl-9863594

ABSTRACT

Mutations in the trabecular meshwork induced glucocorticoid response protein (TIGR) or myocilin (MYOC) has recently been shown to cause juvenile onset primary open angle glaucoma (JOAG). In this study, we identified two new mutations (Asp380Ala and Ser502Pro) in two British families and another (Pro370Leu) in a French-Canadian family. These mutations were not present in a total of 106 normal chromosomes. In another Turkish family with JOAG, we also detected a sequence variant that was proven to be an amino acid polymorphism (Arg76Lys). No other sequence changes were found in the entire coding region and splice junctions of the TIGR/MYOC gene in this family. However, it is still possible that mutations either in the TIGR promoter or in another neighbouring gene could cause glaucoma in this JOAG family. Our results confirm the role of the TIGR/MYOC gene in the aetiology of the JOAG phenotype.


Subject(s)
Eye Neoplasms/genetics , Eye Proteins/genetics , Glaucoma, Open-Angle/genetics , Glycoproteins/genetics , Mutation , Adolescent , Adult , Age of Onset , Child , Cytoskeletal Proteins , Female , Humans , Male , Pedigree
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