chr12-102840472-C-T

Variant names:

Variant summary

Our verdict is Pathogenic. The variant received 6 ACMG points: 6P and 0B. PM3PM2PP4_Moderate

This summary comes from the ClinGen Evidence Repository: The c.1243G>A (p.Asp415Asn) variant in PAH has been reported in 3 patients with Hyperphenylalaninemia (BH4 deficiency excluded). (PP4_Moderate; PMID:1358789). This variant has an extremely low allele frequency (0.0001097 in gnomAD) (PM2; http://gnomad.broadinstitute.org). This variant was detected in trans with R408W, F39L, Y414C, IVS10-11G>A (Pathogenic in ClinVar) (PM3_Very-strong; PMID:1358789; PMID:12501224; PMID:18299955). In summary, this variant meets criteria to be classified as pathogenic for PAH. PAH-specific ACMG/AMP criteria applied: PP4_Moderate, PM3_Very-strong LINK:https://erepo.genome.network/evrepo/ui/classification/CA114364/MONDO:0009861/006

Frequency

Genomes: 𝑓 0.00011 ( 0 hom., cov: 32)

Exomes 𝑓: 0.000064 ( 1 hom. )

Consequence

PAH
NM_000277.3 missense

Scores

Clinical Significance

Pathogenic reviewed by expert panel P:17O:1

Conservation

PhyloP100: 3.76

Publications

33 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), ClinGen, Myriad Women’s Health, G2P
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

PAH links:

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Pathogenic. The variant received 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.

PP4

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

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_000277.3. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	PAH	NM_000277.3	MANE Select	c.1243G>A	p.Asp415Asn	missense	Exon 12 of 13	NP_000268.1	P00439
	PAH	NM_001354304.2		c.1243G>A	p.Asp415Asn	missense	Exon 13 of 14	NP_001341233.1	P00439

Ensembl Transcripts

Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
PAH	ENST00000553106.6	TSL:1 MANE Select	c.1243G>A	p.Asp415Asn	missense	Exon 12 of 13	ENSP00000448059.1	P00439
PAH	ENST00000906695.1		c.1342G>A	p.Asp448Asn	missense	Exon 13 of 14	ENSP00000576754.1
PAH	ENST00000906692.1		c.1321G>A	p.Asp441Asn	missense	Exon 12 of 13	ENSP00000576751.1

Frequencies

GnomAD3 genomes

AF:

0.000105

AC:

AN:

152016

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.0000242

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.000327

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:

0.0000882

Gnomad OTH

AF:

0.00191

GnomAD2 exomes

AF:

0.000107

AC:

AN:

251434

AF XY:

0.000118

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.000347

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.000132

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.0000643

AC:

AN:

1461696

Hom.:

Cov.:

AF XY:

0.0000701

AC XY:

AN XY:

727170

show subpopulations

African (AFR)

AF:

0.0000299

AC:

AN:

33472

American (AMR)

AF:

0.000358

AC:

AN:

44716

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

26130

East Asian (EAS)

AF:

0.0000504

AC:

AN:

39700

South Asian (SAS)

AF:

0.0000116

AC:

AN:

86238

European-Finnish (FIN)

AF:

0.00

AC:

AN:

53418

Middle Eastern (MID)

AF:

0.00

AC:

AN:

5766

European-Non Finnish (NFE)

AF:

0.0000621

AC:

AN:

1111866

Other (OTH)

AF:

0.0000828

AC:

AN:

60390

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.483

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Exome Het

Variant carriers

<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:

0.000105

AC:

AN:

152016

Hom.:

Cov.:

AF XY:

0.000108

AC XY:

AN XY:

74228

show subpopulations

African (AFR)

AF:

0.0000242

AC:

AN:

41344

American (AMR)

AF:

0.000327

AC:

AN:

15278

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

3470

East Asian (EAS)

AF:

0.00

AC:

AN:

5194

South Asian (SAS)

AF:

0.00

AC:

AN:

4802

European-Finnish (FIN)

AF:

0.00

AC:

AN:

10584

Middle Eastern (MID)

AF:

0.00

AC:

AN:

316

European-Non Finnish (NFE)

AF:

0.0000882

AC:

AN:

68026

Other (OTH)

AF:

0.00191

AC:

AN:

2092

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.491

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Genome Het

Variant carriers

<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:

0.000160

Hom.:

Bravo

AF:

0.000170

TwinsUK

AF:

0.000270

AC:

ALSPAC

AF:

0.000519

AC:

ExAC

AF:

0.0000576

AC:

EpiCase

AF:

0.000109

EpiControl

AF:

0.000296

ClinVar

ClinVar submissions

Significance:Pathogenic

Revision:reviewed by expert panel

View on ClinVar

Pathogenic

VUS

Benign

Condition

Phenylketonuria (9)

not provided (6)

Hyperphenylalaninemia (2)

PAH-related disorder (1)

Computational scores

Source: dbNSFP v4.9

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.12

BayesDel_addAF

Benign

-0.069

BayesDel_noAF

Uncertain

-0.030

CADD

Benign

(source)

DANN

Benign

0.32

DEOGEN2

Uncertain

0.63

Eigen

Benign

-0.58

Eigen_PC

Benign

-0.30

FATHMM_MKL

Benign

0.59

LIST_S2

Uncertain

0.92

M_CAP

Pathogenic

0.30

MetaRNN

Pathogenic

0.86

MetaSVM

Uncertain

0.57

MutationAssessor

Benign

-0.81

PhyloP100

3.8

PrimateAI

Benign

0.40

PROVEAN

Benign

3.3

REVEL

Uncertain

0.57

Sift

Benign

1.0

Sift4G

Benign

1.0

Polyphen

0.010

Vest4

0.74

MutPred

0.90

Gain of methylation at R413 (P = 0.0949)

MVP

0.89

MPC

0.031

ClinPred

0.065

GERP RS

4.7

RBP_binding_hub_radar

0.0

RBP_regulation_power_radar

1.7

Varity_R

0.52

gMVP

0.81

Mutation Taster

=20/80

disease causing (ClinVar)

(source)

Splicing

Name

Calibrated prediction

Score

Prediction

SpliceAI score (max)

0.070

Details are displayed if max score is > 0.2

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

Publications

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Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

Publications

ACMG classification

Variant Effect in Transcripts

RefSeq Transcripts

Ensembl Transcripts

Frequencies

Age Distribution

Age Distribution

ClinVar

Computational scores

Splicing

Publications

Other links and lift over