rs149538764

Variant summary

Our verdict is Uncertain significance. Variant got -1 ACMG points: 0P and 1B. BP7

This summary comes from the ClinGen Evidence Repository: The c.442-18G>A variant in PAH has not been reported in the literature to our knowledge. This variant has a MAF of 0.00067 in the gnomAD Latino population. This is too high for PM2, but too low for BS1 per PAH EP guidelines. No splicing impact is predicted in HSF or MaxEnt (BP7). In summary, this variant meets criteria to be classified as uncertain significance for PAH. PAH-specific ACMG/AMP criteria applied: BP7. LINK:https://erepo.genome.network/evrepo/ui/classification/CA6748923/MONDO:0009861/006

Frequency

Genomes: 𝑓 0.00015 ( 0 hom., cov: 32)
Exomes 𝑓: 0.00013 ( 2 hom. )

Consequence

PAH
NM_000277.3 intron

Scores

2

Clinical Significance

Uncertain significance reviewed by expert panel U:2B:2

Conservation

PhyloP100: -0.193
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]

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ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got -1 ACMG points.

BP7

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
PAHNM_000277.3 linkuse as main transcriptc.442-18G>A intron_variant ENST00000553106.6
LOC124902999XR_007063428.1 linkuse as main transcriptn.807+1454C>T intron_variant, non_coding_transcript_variant
PAHNM_001354304.2 linkuse as main transcriptc.442-18G>A intron_variant
PAHXM_017019370.2 linkuse as main transcriptc.442-18G>A intron_variant

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
PAHENST00000553106.6 linkuse as main transcriptc.442-18G>A intron_variant 1 NM_000277.3 P1
PAHENST00000549111.5 linkuse as main transcriptn.538-18G>A intron_variant, non_coding_transcript_variant 1
PAHENST00000307000.7 linkuse as main transcriptc.427-18G>A intron_variant 5
PAHENST00000551988.5 linkuse as main transcriptn.530+10781G>A intron_variant, non_coding_transcript_variant 3

Frequencies

GnomAD3 genomes
AF:
0.000151
AC:
23
AN:
152132
Hom.:
0
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.0000966
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.000851
Gnomad ASJ
AF:
0.00
Gnomad EAS
AF:
0.00
Gnomad SAS
AF:
0.00
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00633
Gnomad NFE
AF:
0.0000588
Gnomad OTH
AF:
0.00
GnomAD3 exomes
AF:
0.000179
AC:
45
AN:
251142
Hom.:
0
AF XY:
0.000177
AC XY:
24
AN XY:
135704
show subpopulations
Gnomad AFR exome
AF:
0.0000615
Gnomad AMR exome
AF:
0.000695
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad SAS exome
AF:
0.0000327
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.000141
Gnomad OTH exome
AF:
0.000490
GnomAD4 exome
AF:
0.000129
AC:
188
AN:
1455350
Hom.:
2
Cov.:
29
AF XY:
0.000131
AC XY:
95
AN XY:
724452
show subpopulations
Gnomad4 AFR exome
AF:
0.000660
Gnomad4 AMR exome
AF:
0.000515
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.00
Gnomad4 SAS exome
AF:
0.0000464
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.0000886
Gnomad4 OTH exome
AF:
0.000233
GnomAD4 genome
AF:
0.000151
AC:
23
AN:
152250
Hom.:
0
Cov.:
32
AF XY:
0.000134
AC XY:
10
AN XY:
74442
show subpopulations
Gnomad4 AFR
AF:
0.0000963
Gnomad4 AMR
AF:
0.000850
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.00
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.0000588
Gnomad4 OTH
AF:
0.00
Alfa
AF:
0.0000868
Hom.:
0
Bravo
AF:
0.000151

ClinVar

Significance: Uncertain significance
Submissions summary: Uncertain:2Benign:2
Revision: reviewed by expert panel
LINK: link

Submissions by phenotype

Phenylketonuria Uncertain:1Benign:2
Likely benign, criteria provided, single submitterclinical testingCounsylDec 28, 2016- -
Likely benign, criteria provided, single submitterclinical testingLabcorp Genetics (formerly Invitae), LabcorpJan 18, 2024- -
Uncertain significance, reviewed by expert panelcurationClinGen PAH Variant Curation Expert PanelSep 27, 2019The c.442-18G>A variant in PAH has not been reported in the literature to our knowledge. This variant has a MAF of 0.00067 in the gnomAD Latino population. This is too high for PM2, but too low for BS1 per PAH EP guidelines. No splicing impact is predicted in HSF or MaxEnt (BP7). In summary, this variant meets criteria to be classified as uncertain significance for PAH. PAH-specific ACMG/AMP criteria applied: BP7. -
not specified Uncertain:1
Uncertain significance, criteria provided, single submitterclinical testingQuest Diagnostics Nichols Institute San Juan CapistranoApr 19, 2017- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
BayesDel_noAF
Benign
-0.78
CADD
Benign
4.9
DANN
Benign
0.66

Splicing

Name
Calibrated prediction
Score
Prediction
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

LitVar

Below is the list of publications found by LitVar. It may be empty.

Other links and lift over

dbSNP: rs149538764; hg19: chr12-103260459; API