12-102894837-C-A

Position:

chr12-102894837-C-A

Variant summary

Our verdict is Pathogenic. Variant got 6 ACMG points: 6P and 0B. PM3PM2_SupportingPP3PP4_Moderate

This summary comes from the ClinGen Evidence Repository: The c.250G>T (p.Asp84Tyr) variant in PAH has been reported in multiple individuals with PKU (BH4 deficiency excluded). (PP4_Moderate; PMID:9634518). This variant has an extremely low allele frequency (MAF=0.00002) in gnomAD. This variant was detected with multiple pathgenic variants: F39L (PMID:11328945), Y356X (PMID:15503242), P281L (PMID:23430918), R158Q (PMID:19609714) (PM3_VS). Multiple lines of computational evidence support a deleterious effect (SIFT, PolyPhen-2, MutationTaster, REVEL=0.819) (PP3). In summary, this variant meets criteria to be classified as pathogenic for PAH. PAH-specific ACMG/AMP criteria applied: PM3_VS, PM2_supporting, PP4_Moderate, PP3. LINK:https://erepo.genome.network/evrepo/ui/classification/CA229500/MONDO:0009861/006

Frequency

Genomes: 𝑓 0.000020 ( 0 hom., cov: 32)

Exomes 𝑓: 0.0000021 ( 0 hom. )

Consequence

PAH
NM_000277.3 missense

Scores

Clinical Significance

Pathogenic reviewed by expert panel P:6O:1

Conservation

PhyloP100: 7.03

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 links:

LOC124902999 (HGNC:):

LOC124902999 links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Pathogenic. Variant got 6 ACMG points.

PM2

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

PM3

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

PP3

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

PP4

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

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein
PAH	NM_000277.3 linkuse as main transcript	c.250G>T	p.Asp84Tyr	missense_variant	3/13	ENST00000553106.6	NP_000268.1
LOC124902999	XR_007063428.1 linkuse as main transcript	n.863-9861C>A		intron_variant, non_coding_transcript_variant
PAH	NM_001354304.2 linkuse as main transcript	c.250G>T	p.Asp84Tyr	missense_variant	4/14		NP_001341233.1
PAH	XM_017019370.2 linkuse as main transcript	c.250G>T	p.Asp84Tyr	missense_variant	3/7		XP_016874859.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris	UniProt
PAH	ENST00000553106.6 linkuse as main transcript	c.250G>T	p.Asp84Tyr	missense_variant	3/13	1	NM_000277.3	ENSP00000448059	P1

Frequencies

GnomAD3 genomes

AF:

0.0000197

AC:

AN:

152006

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.0000483

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.00

Gnomad ASJ

AF:

0.00

Gnomad EAS

AF:

0.00

Gnomad SAS

AF:

0.00

Gnomad FIN

AF:

0.00

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.0000147

Gnomad OTH

AF:

0.00

GnomAD3 exomes

AF:

0.00000795

AC:

AN:

251442

Hom.:

AF XY:

0.0000147

AC XY:

AN XY:

135884

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.00

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00

Gnomad SAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.0000176

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.00000205

AC:

AN:

1461692

Hom.:

Cov.:

AF XY:

0.00000413

AC XY:

AN XY:

727178

show subpopulations

Gnomad4 AFR exome

AF:

0.00

Gnomad4 AMR exome

AF:

0.00

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.00

Gnomad4 SAS exome

AF:

0.00

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.00000270

Gnomad4 OTH exome

AF:

0.00

GnomAD4 genome

AF:

0.0000197

AC:

AN:

152006

Hom.:

Cov.:

AF XY:

0.0000269

AC XY:

AN XY:

74246

show subpopulations

Gnomad4 AFR

AF:

0.0000483

Gnomad4 AMR

AF:

0.00

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.00

Gnomad4 SAS

AF:

0.00

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.0000147

Gnomad4 OTH

AF:

0.00

Bravo

AF:

0.00000756

ExAC

AF:

0.00000824

AC:

EpiCase

AF:

0.0000545

EpiControl

AF:

0.00

ClinVar

Significance: Pathogenic

Submissions summary: Pathogenic:6Other:1

Revision: reviewed by expert panel

LINK: link

Submissions by phenotype

Phenylketonuria

Pathogenic:5

Pathogenic, reviewed by expert panel	curation	ClinGen PAH Variant Curation Expert Panel	Dec 30, 2023	The c.250G>T (p.Asp84Tyr) variant in PAH has been reported in multiple individuals with PKU (BH4 deficiency excluded). (PP4_Moderate; PMID: 9634518). This variant has an extremely low allele frequency (MAF=0.00002) in gnomAD. This variant was detected with multiple pathgenic variants: F39L (PMID:11328945), Y356X (PMID: 15503242), P281L (PMID: 23430918), R158Q (PMID: 19609714) (PM3_VS). Multiple lines of computational evidence support a deleterious effect (SIFT, PolyPhen-2, MutationTaster, REVEL=0.819) (PP3). In summary, this variant meets criteria to be classified as pathogenic for PAH. PAH-specific ACMG/AMP criteria applied: PM3_VS, PM2_supporting, PP4_Moderate, PP3. -
Pathogenic, criteria provided, single submitter	clinical testing	Women's Health and Genetics/Laboratory Corporation of America, LabCorp	May 06, 2024	Variant summary: PAH c.250G>T (p.Asp84Tyr) results in a non-conservative amino acid change located in the ACT domain (IPR002912) of the encoded protein sequence. Five of five in-silico tools predict a damaging effect of the variant on protein function. The variant allele was found at a frequency of 8e-06 in 251442 control chromosomes (gnomAD). c.250G>T has been reported in the literature in multiple individuals affected with Phenylalanine Hydroxylase Deficiency (Phenylketonuria) (examples: Koch_1997, Levy_2001, Lee_2004, Langenbeck_2009, Sarkissian_2012, Shirzadeh_2018). These data indicate that the variant is very likely to be associated with disease. The following publications have been ascertained in the context of this evaluation (PMID: 9169088, 19609714, 15503242, 11328945, 23430918, 30159852). ClinVar contains an entry for this variant (Variation ID: 102639). Based on the evidence outlined above, the variant was classified as pathogenic. -
Pathogenic, criteria provided, single submitter	clinical testing	Baylor Genetics	Mar 06, 2024	- -
Likely pathogenic, criteria provided, single submitter	clinical testing	Molecular Diagnostics Laboratory, M Health Fairview: University of Minnesota	Oct 24, 2017	- -
Pathogenic, criteria provided, single submitter	clinical testing	Labcorp Genetics (formerly Invitae), Labcorp	Sep 06, 2023	For these reasons, this variant has been classified as Pathogenic. Advanced modeling of protein sequence and biophysical properties (such as structural, functional, and spatial information, amino acid conservation, physicochemical variation, residue mobility, and thermodynamic stability) performed at Invitae indicates that this missense variant is not expected to disrupt PAH protein function. ClinVar contains an entry for this variant (Variation ID: 102639). This missense change has been observed in individual(s) with phenylketonuria (PMID: 32668217). This variant is present in population databases (rs62514902, gnomAD 0.002%). This sequence change replaces aspartic acid, which is acidic and polar, with tyrosine, which is neutral and polar, at codon 84 of the PAH protein (p.Asp84Tyr). -

not provided

Pathogenic:1Other:1

Pathogenic, criteria provided, single submitter	clinical testing	Eurofins Ntd Llc (ga)	Jul 16, 2014	- -
not provided, no classification provided	literature only	DeBelle Laboratory for Biochemical Genetics, MUHC/MCH RESEARCH INSTITUTE	-	- -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Uncertain

0.37

BayesDel_addAF

Pathogenic

0.53

BayesDel_noAF

Pathogenic

0.54

CADD

Pathogenic

DANN

Uncertain

0.99

DEOGEN2

Pathogenic

0.97

D;D;D;D

Eigen

Pathogenic

0.86

Eigen_PC

Pathogenic

0.84

FATHMM_MKL

Pathogenic

0.98

LIST_S2

Uncertain

0.86

D;D;D;D

M_CAP

Pathogenic

0.78

MetaRNN

Pathogenic

0.99

D;D;D;D

MetaSVM

Pathogenic

1.1

MutationAssessor

Uncertain

2.8

M;.;.;.

MutationTaster

Benign

1.0

D;D

PrimateAI

Benign

0.46

PROVEAN

Uncertain

-4.2

D;D;D;D

REVEL

Pathogenic

0.82

Sift

Pathogenic

0.0

D;D;D;D

Sift4G

Pathogenic

0.0010

D;D;D;.

Polyphen

0.99

D;.;.;.

Vest4

0.91

MutPred

0.86

Loss of loop (P = 0.0512);.;Loss of loop (P = 0.0512);Loss of loop (P = 0.0512);

MVP

1.0

MPC

0.22

ClinPred

1.0

GERP RS

6.2

RBP_binding_hub_radar

0.0

RBP_regulation_power_radar

1.7

Varity_R

0.93

gMVP

0.85

Splicing

Name

Calibrated prediction

Score

Prediction

SpliceAI score (max)

0.020

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.

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

LitVar

Other links and lift over