ClinVar Miner

Submissions for variant NM_000277.3(PAH):c.460T>C (p.Tyr154His)

dbSNP: rs199475587
Minimum review status: Collection method:
Minimum conflict level:
ClinVar version:
Total submissions: 3
Download table as spreadsheet
Submitter RCV SCV Clinical significance Condition Last evaluated Review status Method Comment
ClinGen PAH Variant Curation Expert Panel RCV001093509 SCV001250540 likely pathogenic Phenylketonuria 2019-12-22 reviewed by expert panel curation The PAH variant c.460T>C (p.Tyr154His) has been reported in three Chinese individuals with PHA deficiency (Phe levels >120 microM). The PAH variant c.460T>C (p.Tyr154His) was found in trans with the PAH pathogenic variant c.331C>T (p.Arg111Ter)(ClinVar ID: 581) in a Chinese patient with classical PKU (Phe levels >20 mg/dl). All mutations identified were confirmed by analyzing parental DNA. BH4 deficiency was excluded by analysis of urinary pterins and dihydropteridine reductase activity in erythrocytes (PMID: 26322415). The PAH variant c.460T>C (p.Tyr154His) was found as a homozygous occurrence in a Chinese patient with classical PKU (Phe greater than or equal to 1200 micromol/L) (PM3 Points= 1*0.5=0.5) (PMID:16256386). This variant was also reported in two other Chinese patients with undetermined PKU/MHP phenotype (PMID: 26503515, and PMID: 19915519). The PAH variant c.460T>C (p.Tyr154His) is absent from the gnomAD, ExAC, 1000 Genomes, and ESP population databases. In silico modeling, predictions support that this missense variant could have a deleterious effect on the PAH gene or gene product. This variant is predicted to be deleterious by SIFT, probably damaging by PolyPhen2- HumVar, and disease-causing by Mutation Taster. In summary, this variant meets criteria to be classified as likely pathogenic for PAH. PAH-specific ACMG/AMP criteria applied: PM2, PM3, PP3, and PP4_Moderate.
Baylor Genetics RCV001093509 SCV004209697 pathogenic Phenylketonuria 2023-02-28 criteria provided, single submitter clinical testing
DeBelle Laboratory for Biochemical Genetics, MUHC/MCH RESEARCH INSTITUTE RCV000088933 SCV000119533 not provided not provided no assertion provided not provided

The information on this website is not intended for direct diagnostic use or medical decision-making without review by a genetics professional. Individuals should not change their health behavior solely on the basis of information contained on this website. Neither the University of Utah nor the National Institutes of Health independently verfies the submitted information. If you have questions about the information contained on this website, please see a health care professional.