rs62508624

Variant summary

Our verdict is Benign. The variant received -9 ACMG points: 0P and 9B. BP4BA1

This summary comes from the ClinGen Evidence Repository: PAH-specific ACMG/AMP criteria applied: BA1: Highest MAF=0.10514 in 1000G. 35 homozygotes in ExAC; BP4: HSF: No significant splicing motif alteration detected. This mutation has probably no impact on splicing. CADD=1.163344. In summary this variant meets criteria to be classified as benign for phenylketonuria in an autosomal recessive manner based on the ACMG/AMP criteria applied as specified by the PAH Expert Panel: (BA1, BP4). LINK:https://erepo.genome.network/evrepo/ui/classification/CA180267/MONDO:0009861/006

Frequency

Genomes: 𝑓 0.026 ( 175 hom., cov: 32)
Exomes 𝑓: 0.0028 ( 159 hom. )

Consequence

PAH
NM_000277.3 splice_region, intron

Scores

2
Splicing: ADA: 0.00003234
2

Clinical Significance

Benign reviewed by expert panel B:11O:1

Conservation

PhyloP100: -0.536

Publications

2 publications found
Variant links:
Genes affected
PAH (HGNC:8582): (phenylalanine hydroxylase) This gene encodes a member of the biopterin-dependent aromatic amino acid hydroxylase protein family. The encoded phenylalanine hydroxylase enzyme hydroxylates phenylalanine to tyrosine and is the rate-limiting step in phenylalanine catabolism. Deficiency of this enzyme activity results in the autosomal recessive disorder phenylketonuria. [provided by RefSeq, Aug 2017]
PAH Gene-Disease associations (from GenCC):
  • phenylketonuria
    Inheritance: AR Classification: DEFINITIVE, STRONG Submitted by: Labcorp Genetics (formerly Invitae), G2P, ClinGen, Myriad Women’s Health
  • classic phenylketonuria
    Inheritance: AR Classification: SUPPORTIVE Submitted by: Orphanet
  • maternal phenylketonuria
    Inheritance: AR Classification: SUPPORTIVE Submitted by: Orphanet
  • mild hyperphenylalaninemia
    Inheritance: AR Classification: SUPPORTIVE Submitted by: Orphanet
  • mild phenylketonuria
    Inheritance: AR Classification: SUPPORTIVE Submitted by: Orphanet
  • tetrahydrobiopterin-responsive hyperphenylalaninemia/phenylketonuria
    Inheritance: AR Classification: SUPPORTIVE Submitted by: Orphanet

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Benign. The variant received -9 ACMG points.

BP4
For more information check the summary or visit ClinGen Evidence Repository.
BA1
For more information check the summary or visit ClinGen Evidence Repository.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
PAHNM_000277.3 linkc.707-7A>T splice_region_variant, intron_variant Intron 6 of 12 ENST00000553106.6 NP_000268.1 P00439A0A024RBG4
PAHNM_001354304.2 linkc.707-7A>T splice_region_variant, intron_variant Intron 7 of 13 NP_001341233.1

Ensembl

Gene Transcript HGVSc HGVSp Effect Exon rank TSL MANE Protein Appris UniProt
PAHENST00000553106.6 linkc.707-7A>T splice_region_variant, intron_variant Intron 6 of 12 1 NM_000277.3 ENSP00000448059.1 P00439
PAHENST00000549247.6 linkn.459A>T non_coding_transcript_exon_variant Exon 1 of 6 2
PAHENST00000307000.7 linkc.692-7A>T splice_region_variant, intron_variant Intron 7 of 13 5 ENSP00000303500.2 J3KND8
PAHENST00000635477.1 linkc.-141A>T upstream_gene_variant 5 ENSP00000489230.1 A0A0U1RQY4

Frequencies

GnomAD3 genomes
AF:
0.0265
AC:
4027
AN:
151974
Hom.:
175
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.0908
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.0110
Gnomad ASJ
AF:
0.0101
Gnomad EAS
AF:
0.00
Gnomad SAS
AF:
0.000416
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00316
Gnomad NFE
AF:
0.000368
Gnomad OTH
AF:
0.0192
GnomAD2 exomes
AF:
0.00715
AC:
1789
AN:
250224
AF XY:
0.00549
show subpopulations
Gnomad AFR exome
AF:
0.0897
Gnomad AMR exome
AF:
0.00509
Gnomad ASJ exome
AF:
0.00986
Gnomad EAS exome
AF:
0.0000546
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.000292
Gnomad OTH exome
AF:
0.00344
GnomAD4 exome
AF:
0.00282
AC:
4115
AN:
1461718
Hom.:
159
Cov.:
32
AF XY:
0.00252
AC XY:
1831
AN XY:
727142
show subpopulations
African (AFR)
AF:
0.0884
AC:
2959
AN:
33470
American (AMR)
AF:
0.00628
AC:
281
AN:
44718
Ashkenazi Jewish (ASJ)
AF:
0.00876
AC:
229
AN:
26130
East Asian (EAS)
AF:
0.00
AC:
0
AN:
39684
South Asian (SAS)
AF:
0.000220
AC:
19
AN:
86246
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
53378
Middle Eastern (MID)
AF:
0.00503
AC:
29
AN:
5764
European-Non Finnish (NFE)
AF:
0.000168
AC:
187
AN:
1111942
Other (OTH)
AF:
0.00681
AC:
411
AN:
60386
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.480
Heterozygous variant carriers
0
219
438
656
875
1094
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Exome Het
Exome Hom
Variant carriers
0
96
192
288
384
480
<30
30-35
35-40
40-45
45-50
50-55
55-60
60-65
65-70
70-75
75-80
>80
Age
GnomAD4 genome
AF:
0.0265
AC:
4026
AN:
152092
Hom.:
175
Cov.:
32
AF XY:
0.0249
AC XY:
1849
AN XY:
74362
show subpopulations
African (AFR)
AF:
0.0905
AC:
3756
AN:
41480
American (AMR)
AF:
0.0110
AC:
168
AN:
15276
Ashkenazi Jewish (ASJ)
AF:
0.0101
AC:
35
AN:
3470
East Asian (EAS)
AF:
0.00
AC:
0
AN:
5148
South Asian (SAS)
AF:
0.000208
AC:
1
AN:
4800
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
10596
Middle Eastern (MID)
AF:
0.00340
AC:
1
AN:
294
European-Non Finnish (NFE)
AF:
0.000368
AC:
25
AN:
68006
Other (OTH)
AF:
0.0190
AC:
40
AN:
2110
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.501
Heterozygous variant carriers
0
180
360
540
720
900
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Genome Het
Genome Hom
Variant carriers
0
42
84
126
168
210
<30
30-35
35-40
40-45
45-50
50-55
55-60
60-65
65-70
70-75
75-80
>80
Age
Alfa
AF:
0.00930
Hom.:
15
Bravo
AF:
0.0302
Asia WGS
AF:
0.00318
AC:
11
AN:
3478
EpiCase
AF:
0.000273
EpiControl
AF:
0.000415

ClinVar

Significance: Benign
Submissions summary: Benign:11Other:1
Revision: reviewed by expert panel
LINK: link

Submissions by phenotype

not provided Benign:5Other:1
Jul 24, 2020
Quest Diagnostics Nichols Institute San Juan Capistrano
Significance:Benign
Review Status:criteria provided, single submitter
Collection Method:clinical testing

- -

-
DeBelle Laboratory for Biochemical Genetics, MUHC/MCH RESEARCH INSTITUTE
Significance:not provided
Review Status:no classification provided
Collection Method:literature only

- -

May 14, 2017
Women's Health and Genetics/Laboratory Corporation of America, LabCorp
Significance:Benign
Review Status:criteria provided, single submitter
Collection Method:clinical testing

Variant summary: c.707-7A>T in PAH gene is an intronic change that involves a non-conserved nucleotide. 5/5 programs in Alamut predict that this variant does not affect a normal splicing pattern, however no functional studies supporting this notion were published at the time of evaluation. The variant is present in the control population dataset of ExAC at frequency of 0.008876 (1049/ 118182 chrs tested), predominantly in individuals of African descent (0.08901; 910/ 10224 chrs tested), including 33 homozygotes. The observed frequencies exceed the maximum expected allele frequency for a pathogenic variant of 0.0079 suggesting that it is a benign polymorphism. The variant of interest has been reported in PKU individuals without strong evidence for causality, but is cited as Benign by a reputable database/clinical laboratory. Taking together, based on the prevalence of this variant in general population the variant was classified as Benign. -

Feb 02, 2015
Center for Pediatric Genomic Medicine, Children's Mercy Hospital and Clinics
Significance:Likely benign
Review Status:criteria provided, single submitter
Collection Method:clinical testing

- -

-
Breakthrough Genomics, Breakthrough Genomics
Significance:Benign
Review Status:criteria provided, single submitter
Collection Method:not provided

- -

Feb 25, 2019
GeneDx
Significance:Benign
Review Status:criteria provided, single submitter
Collection Method:clinical testing

This variant is associated with the following publications: (PMID: 2666653, 27884173) -

Phenylketonuria Benign:5
Feb 03, 2025
Labcorp Genetics (formerly Invitae), Labcorp
Significance:Benign
Review Status:criteria provided, single submitter
Collection Method:clinical testing

- -

Apr 21, 2022
Fulgent Genetics, Fulgent Genetics
Significance:Benign
Review Status:criteria provided, single submitter
Collection Method:clinical testing

- -

Apr 27, 2017
Illumina Laboratory Services, Illumina
Significance:Likely benign
Review Status:criteria provided, single submitter
Collection Method:clinical testing

This variant was observed as part of a predisposition screen in an ostensibly healthy population. A literature search was performed for the gene, cDNA change, and amino acid change (where applicable). No publications were found based on this search. Allele frequency data from public databases allowed determination this variant is unlikely to cause disease. Therefore, this variant is classified as likely benign. -

Aug 10, 2018
ClinGen PAH Variant Curation Expert Panel
Significance:Benign
Review Status:reviewed by expert panel
Collection Method:curation

PAH-specific ACMG/AMP criteria applied: BA1: Highest MAF=0.10514 in 1000G. 35 homozygotes in ExAC; BP4: HSF: No significant splicing motif alteration detected. This mutation has probably no impact on splicing. CADD=1.163344. In summary this variant meets criteria to be classified as benign for phenylketonuria in an autosomal recessive manner based on the ACMG/AMP criteria applied as specified by the PAH Expert Panel: (BA1, BP4). -

Nov 14, 2019
Natera, Inc.
Significance:Benign
Review Status:no assertion criteria provided
Collection Method:clinical testing

- -

not specified Benign:1
Feb 25, 2014
Eurofins Ntd Llc (ga)
Significance:Benign
Review Status:criteria provided, single submitter
Collection Method:clinical testing

- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
BayesDel_noAF
Benign
-0.71
CADD
Benign
5.0
DANN
Benign
0.68
PhyloP100
-0.54
PromoterAI
0.055
Neutral
RBP_binding_hub_radar
0.0
RBP_regulation_power_radar
1.1
Mutation Taster
=100/0
polymorphism (auto)

Splicing

Name
Calibrated prediction
Score
Prediction
dbscSNV1_ADA
Benign
0.000032
dbscSNV1_RF
Benign
0.0
SpliceAI score (max)
0.0
Details are displayed if max score is > 0.2

Find out detailed SpliceAI scores and Pangolin per-transcript scores at spliceailookup.broadinstitute.org

Publications

Other links and lift over

dbSNP: rs62508624; hg19: chr12-103246735; API