Mutations and Polymorphisms in the Genes for Myocilin and Optineurin as the Risk Factors of Primary Open-Angle Glaucoma

Mutations and Polymorphisms in the Genes for Myocilin and Optineurin as the Risk Factors of... A collection of DNA samples obtained from primary open-angle glaucoma (POAG) patients from St. Petersburg was analyzed for single-strand conformation polymorphism (SSCP) to reveal sequence variants in exon 3 of the myocilin gene (MYOC/TIGR) and in exons 4 and 5 of the optineurin gene (OPTN), where most of the mutations revealed worldwide are located. The Q368X mutation (c. 1102 C → T) in exon 3 of MYOC/TIGR was detected in 1.2% (2/170) of the POAG patients from St. Petersburg, i.e., with the frequency close to that observed in other world populations. Three known polymorphisms in exon 3 of MYOC/TIGR were detected in glaucoma patients, namely Y347Y (c. 1041 T → C) (12.4%), T325T (c. 975 G → A) (0.6%), and K398R (c. 1193 A → G) (0.6%). No statistically significant differences in frequencies of these polymorphisms were revealed between the POAG patient and control groups. The L41L polymorphism (c. 433 G → A) in exon 4 of OPTN was detected in 2.9% of probands and in 1% of controls. The frequency of heterozygotes for the M98K polymorphism (c. 603 T → A) in the OPTN exon 5 was statistically significantly higher (P = 0.036; Fisher's exact test) among the POAG patients (6.5%) than among the controls (1%). In the sample examined the E50K (c. 458G → A) mutation, typical of the patients with pseudonormal intraocular pressure glaucoma (commonly known as low-tension glaucoma, LTG) was not found. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Russian Journal of Genetics Springer Journals

Mutations and Polymorphisms in the Genes for Myocilin and Optineurin as the Risk Factors of Primary Open-Angle Glaucoma

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Publisher
Nauka/Interperiodica
Copyright
Copyright © 2005 by MAIK "Nauka/Interperiodica"
Subject
Biomedicine; Microbial Genetics and Genomics; Animal Genetics and Genomics; Human Genetics
ISSN
1022-7954
eISSN
1608-3369
D.O.I.
10.1007/s11177-005-0232-4
Publisher site
See Article on Publisher Site

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