Preview

Medical Genetics

Advanced search
Open Access Open Access  Restricted Access Subscription Access

Results of the search for rare mutations in the analysis of the entire sequence of the PAH gene

https://doi.org/10.25557/2073-7998.2022.10.43-45

Abstract

Phenylketonuria (PKU) is a common, autosomal recessive hereditary disorder of phenylalanine hydroxylase caused by pathogenic PAH gene variants. After routine genetic analysis methods were applied, approximately 2% of PKU patients were not diagnosed. In this study, the search of nucleotide replacements were performed in noncoding and regulatory regions of PAH gen via NGS.The variant c.706+521G>C was found deep in intron 6, which in silico predicted the effect on splicing of the PAH gene. Thereby this study supplements current knowledge of PAH genotypes and show that deep intronic analysis of PAH can genetically diagnose PKU.

About the Authors

N. V. Ryadninskaya
Research Centre for Medical Genetics
Russian Federation


I. A. Kuznetsova
Research Centre for Medical Genetics
Russian Federation


O. P. Ryzhkova
Research Centre for Medical Genetics
Russian Federation


A. V. Polyakov
Research Centre for Medical Genetics
Russian Federation


References

1. Li N., Jia H., Liu Z., Tao J., Chen S., Li X., Deng Y., Jin X., Song J., Zhang L., Liang Y., Wang W., Zhu J. Molecular characterisation of phenylketonuria in a Chinese mainland population using next-generation sequencing. Sci Rep. 2015 Oct 27;5:15769.

2. Yan Y.S., Yao F.X., Hao S.J., Zhang C., Chen X., Feng X., Yang T., Huang S.Z. [Analysis of large deletion of phenylalanine hydroxylase gene in Chinese patients with phenylketonuria]. Zhonghua Yi Xue Za Zhi. 2016 Apr 12;96(14):1097-102. Chinese

3. Jin X., Yan Y., Zhang C., Tai Y., An L., Yu X., Zhang L., Hao S., Cao X., Yin C., Ma X. Identification of novel deep intronic PAH gene variants in patients diagnosed with phenylketonuria. Hum Mutat. 2022 Jan;43(1):56-66.

4. Gao J., Li X., Guo Y., Yu H., Song L., Fang Y., Yuan E., Shi Q., Zhao D., Yuan E., Zhang L. Identification of phenylketonuria patient genotypes using single-gene full-length sequencing. Hum Genomics. 2022 Jul 22;16(1):23. doi: 10.1186/s40246-022-00397-w.

5. Рыжкова О.П., Кардымон О.Л., Прохорчук Е.Б., и др. Руководство по интерпретации данных последовательности ДНК человека, полученных методами массового параллельного секвенирования (MPS) (редакция 2018, версия 2). Медицинская генетика. 2019;18(2):3-23. https://doi.org/10.25557/2073-7998.2019.02.3-23


Review

For citations:


Ryadninskaya N.V., Kuznetsova I.A., Ryzhkova O.P., Polyakov A.V. Results of the search for rare mutations in the analysis of the entire sequence of the PAH gene. Medical Genetics. 2022;21(10):43-45. (In Russ.) https://doi.org/10.25557/2073-7998.2022.10.43-45

Views: 352


ISSN 2073-7998 (Print)