NM_000277.3:c.965C>G

Variant summary

Our verdict is Likely pathogenic. The variant received 6 ACMG points: 6P and 0B. PP4PP3PM3_Strong

This summary comes from the ClinGen Evidence Repository: The c.965C>G (p.Ala322Gly) variant in PAH has been reported in 4 individuals with mild hyperphenylalaninemia (BH4 deficiency not excluded). (PP4; PMID:12501224). This variant has an allele frequency higher than the PAH VCEP PM2 threshold (MAF=0.00044). This variant was detected with p.R408W in 3 individuals (Pathogenic in ClinVar) and with p.R252W in 1 individual (PM3_strong; PMID:12501224). Computational evidence supports a deleterious effect. In summary, this variant meets criteria to be classified as likely pathogenic for PAH. PAH-specific ACMG/AMP criteria applied: PP4, PM3-strong, PP3. LINK:https://erepo.genome.network/evrepo/ui/classification/CA114363/MONDO:0009861/006

Frequency

Genomes: 𝑓 0.000026 ( 0 hom., cov: 32)
Exomes 𝑓: 0.000031 ( 0 hom. )

Consequence

PAH
NM_000277.3 missense

Scores

10
8

Clinical Significance

Likely pathogenic reviewed by expert panel P:6U:1O:1

Conservation

PhyloP100: 9.60

Publications

10 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

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Likely_pathogenic. The variant received 6 ACMG points.

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.

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.
GeneTranscriptTagsHGVScHGVSpEffectExon RankProteinUniProt
PAH
NM_000277.3
MANE Select
c.965C>Gp.Ala322Gly
missense
Exon 9 of 13NP_000268.1P00439
PAH
NM_001354304.2
c.965C>Gp.Ala322Gly
missense
Exon 10 of 14NP_001341233.1P00439

Ensembl Transcripts

Sel.
GeneTranscriptTagsHGVScHGVSpEffectExon RankProteinUniProt
PAH
ENST00000553106.6
TSL:1 MANE Select
c.965C>Gp.Ala322Gly
missense
Exon 9 of 13ENSP00000448059.1P00439
PAH
ENST00000906695.1
c.1064C>Gp.Ala355Gly
missense
Exon 10 of 14ENSP00000576754.1
PAH
ENST00000906692.1
c.965C>Gp.Ala322Gly
missense
Exon 9 of 13ENSP00000576751.1

Frequencies

GnomAD3 genomes
AF:
0.0000263
AC:
4
AN:
152118
Hom.:
0
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.00
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:
0.0000943
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.0000441
Gnomad OTH
AF:
0.00
GnomAD2 exomes
AF:
0.0000597
AC:
15
AN:
251246
AF XY:
0.0000589
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 FIN exome
AF:
0.000462
Gnomad NFE exome
AF:
0.0000440
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.0000315
AC:
46
AN:
1461060
Hom.:
0
Cov.:
30
AF XY:
0.0000316
AC XY:
23
AN XY:
726890
show subpopulations
African (AFR)
AF:
0.00
AC:
0
AN:
33446
American (AMR)
AF:
0.00
AC:
0
AN:
44712
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
26128
East Asian (EAS)
AF:
0.00
AC:
0
AN:
39694
South Asian (SAS)
AF:
0.00
AC:
0
AN:
86232
European-Finnish (FIN)
AF:
0.000412
AC:
22
AN:
53410
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
5764
European-Non Finnish (NFE)
AF:
0.0000153
AC:
17
AN:
1111310
Other (OTH)
AF:
0.000116
AC:
7
AN:
60364
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.465
Heterozygous variant carriers
0
3
6
10
13
16
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Exome Het
Variant carriers
0
2
4
6
8
10
<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:
0.0000263
AC:
4
AN:
152118
Hom.:
0
Cov.:
32
AF XY:
0.0000404
AC XY:
3
AN XY:
74304
show subpopulations
African (AFR)
AF:
0.00
AC:
0
AN:
41406
American (AMR)
AF:
0.00
AC:
0
AN:
15272
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
3472
East Asian (EAS)
AF:
0.00
AC:
0
AN:
5184
South Asian (SAS)
AF:
0.00
AC:
0
AN:
4828
European-Finnish (FIN)
AF:
0.0000943
AC:
1
AN:
10600
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
316
European-Non Finnish (NFE)
AF:
0.0000441
AC:
3
AN:
68036
Other (OTH)
AF:
0.00
AC:
0
AN:
2092
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.513
Heterozygous variant carriers
0
1
1
2
2
3
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Genome Het
Variant carriers
0
2
4
6
8
10
<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:
0.00
Hom.:
0
Bravo
AF:
0.0000151
ExAC
AF:
0.0000330
AC:
4
EpiCase
AF:
0.00
EpiControl
AF:
0.0000593

ClinVar

ClinVar submissions
Significance:Likely pathogenic
Revision:reviewed by expert panel
View on ClinVar
Pathogenic
VUS
Benign
Condition
4
1
-
Phenylketonuria (5)
1
-
-
Mild non-PKU hyperphenylalanemia (1)
1
-
-
See cases (1)
-
-
-
not provided (1)

Computational scores

Source: dbNSFP v4.9

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Uncertain
0.45
BayesDel_addAF
Pathogenic
0.46
D
BayesDel_noAF
Pathogenic
0.55
CADD
Pathogenic
28
DANN
Uncertain
1.0
DEOGEN2
Pathogenic
0.98
D
Eigen
Uncertain
0.64
Eigen_PC
Uncertain
0.60
FATHMM_MKL
Pathogenic
1.0
D
LIST_S2
Uncertain
0.94
D
M_CAP
Pathogenic
0.52
D
MetaRNN
Pathogenic
0.90
D
MetaSVM
Pathogenic
1.1
D
MutationAssessor
Pathogenic
3.0
M
PhyloP100
9.6
PrimateAI
Pathogenic
0.79
T
PROVEAN
Uncertain
-3.6
D
REVEL
Pathogenic
0.86
Sift
Uncertain
0.0020
D
Sift4G
Uncertain
0.043
D
Polyphen
0.90
P
Vest4
0.89
MVP
0.98
MPC
0.23
ClinPred
0.85
D
GERP RS
5.4
Varity_R
0.94
gMVP
0.91
Mutation Taster
=5/95
disease causing (ClinVar)

Splicing

Name
Calibrated prediction
Score
Prediction
Splicevardb
2.0
SpliceAI score (max)
0.050
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: rs62514958; hg19: chr12-103240677; API