Ontology highlight
ABSTRACT: Background
Phenylketonuria (PKU) is a common, autosomal recessive inborn error of metabolism caused by PAH gene variants. After routine genetic analysis methods were applied, approximately 5% of PKU patients were still not diagnosed with a definite genotype.Methods
In this study, for the first time, we identified PKU patients with unknown genotypes via single-gene full-length sequencing.Results
The detection rate of PKU genotype increased from 94.6 to 99.4%, an increase of approximately 5%. The variants c.1199 + 502A > T and 1065 + 241C > A were found at a high frequency in Chinese PKU patients.Conclusion
Our study suggest that single-gene full-length sequencing is a rapid, efficient and cost-effective tool to improve the genotype detection rate of PKU patients. Moreover, we provides additional case data to support pathogenicity of deep intronic variants in PAH.
SUBMITTER: Gao J
PROVIDER: S-EPMC9308354 | biostudies-literature | 2022 Jul
REPOSITORIES: biostudies-literature
Gao Jinshuang J Li Xiaole X Guo Yaqing Y Yu Haiyang H Song Liying L Fang Yang Y Yuan Erfeng E Shi Qianqian Q Zhao Dehua D Yuan Enwu E Zhang Linlin L
Human genomics 20220722 1
<h4>Background</h4>Phenylketonuria (PKU) is a common, autosomal recessive inborn error of metabolism caused by PAH gene variants. After routine genetic analysis methods were applied, approximately 5% of PKU patients were still not diagnosed with a definite genotype.<h4>Methods</h4>In this study, for the first time, we identified PKU patients with unknown genotypes via single-gene full-length sequencing.<h4>Results</h4>The detection rate of PKU genotype increased from 94.6 to 99.4%, an increase o ...[more]