rs1449927772

Variant summary

Our verdict is Uncertain significance. The variant received 3 ACMG points: 4P and 1B. PM1PM2BP4

The NM_000137.4(FAH):​c.1195G>A​(p.Asp399Asn) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000000684 in 1,461,810 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 16/22 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★★). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. D399V) has been classified as Uncertain significance.

Frequency

Genomes: not found (cov: 33)
Exomes 𝑓: 6.8e-7 ( 0 hom. )

Consequence

FAH
NM_000137.4 missense

Scores

1
3
15

Clinical Significance

Uncertain significance criteria provided, multiple submitters, no conflicts U:2

Conservation

PhyloP100: 0.737

Publications

0 publications found
Variant links:
Genes affected
FAH (HGNC:3579): (fumarylacetoacetate hydrolase) Predicted to enable fumarylacetoacetase activity. Predicted to be involved in L-phenylalanine catabolic process; homogentisate catabolic process; and tyrosine catabolic process. Predicted to act upstream of or within arginine catabolic process. Located in extracellular exosome. Implicated in tyrosinemia type I. [provided by Alliance of Genome Resources, Apr 2022]
FAH Gene-Disease associations (from GenCC):
  • tyrosinemia type I
    Inheritance: AR Classification: DEFINITIVE, STRONG, SUPPORTIVE Submitted by: Labcorp Genetics (formerly Invitae), Myriad Women’s Health, Laboratory for Molecular Medicine, G2P, Orphanet, Ambry Genetics, ClinGen

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Uncertain_significance. The variant received 3 ACMG points.

PM1
In a hotspot region, there are 3 aminoacids with missense pathogenic changes in the window of +-8 aminoacids around while only 1 benign, 7 uncertain in NM_000137.4
PM2
Very rare variant in population databases, with high coverage;
BP4
Computational evidence support a benign effect (MetaRNN=0.30752927).

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
FAHNM_000137.4 linkc.1195G>A p.Asp399Asn missense_variant Exon 14 of 14 ENST00000561421.6 NP_000128.1 P16930-1A0A384P5L6
FAHNM_001374377.1 linkc.1195G>A p.Asp399Asn missense_variant Exon 15 of 15 NP_001361306.1
FAHNM_001374380.1 linkc.1195G>A p.Asp399Asn missense_variant Exon 15 of 15 NP_001361309.1

Ensembl

Gene Transcript HGVSc HGVSp Effect Exon rank TSL MANE Protein Appris UniProt
FAHENST00000561421.6 linkc.1195G>A p.Asp399Asn missense_variant Exon 14 of 14 1 NM_000137.4 ENSP00000453347.2 P16930-1

Frequencies

GnomAD3 genomes
Cov.:
33
GnomAD4 exome
AF:
6.84e-7
AC:
1
AN:
1461810
Hom.:
0
Cov.:
31
AF XY:
0.00000138
AC XY:
1
AN XY:
727218
show subpopulations
African (AFR)
AF:
0.00
AC:
0
AN:
33478
American (AMR)
AF:
0.0000224
AC:
1
AN:
44724
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
26134
East Asian (EAS)
AF:
0.00
AC:
0
AN:
39700
South Asian (SAS)
AF:
0.00
AC:
0
AN:
86256
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
53420
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
5768
European-Non Finnish (NFE)
AF:
0.00
AC:
0
AN:
1111934
Other (OTH)
AF:
0.00
AC:
0
AN:
60396
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.525
Heterozygous variant carriers
0
0
1
1
2
2
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance
GnomAD4 genome
Cov.:
33

ClinVar

Significance: Uncertain significance
Submissions summary: Uncertain:2
Revision: criteria provided, multiple submitters, no conflicts
LINK: link

Submissions by phenotype

not provided Uncertain:1
Aug 03, 2018
Eurofins Ntd Llc (ga)
Significance:Uncertain significance
Review Status:criteria provided, single submitter
Collection Method:clinical testing

- -

Tyrosinemia type I Uncertain:1
Apr 02, 2024
Fulgent Genetics, Fulgent Genetics
Significance:Uncertain significance
Review Status:criteria provided, single submitter
Collection Method:clinical testing

- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.069
BayesDel_addAF
Benign
-0.044
T
BayesDel_noAF
Benign
-0.30
CADD
Benign
8.1
DANN
Benign
0.94
DEOGEN2
Uncertain
0.70
D;D;D
Eigen
Benign
-0.71
Eigen_PC
Benign
-0.67
FATHMM_MKL
Benign
0.13
N
LIST_S2
Uncertain
0.94
.;.;D
M_CAP
Pathogenic
0.32
D
MetaRNN
Benign
0.31
T;T;T
MetaSVM
Uncertain
0.050
D
MutationAssessor
Benign
0.93
L;L;L
PhyloP100
0.74
PrimateAI
Benign
0.37
T
PROVEAN
Benign
-1.4
N;N;N
REVEL
Benign
0.21
Sift
Benign
0.33
T;T;T
Sift4G
Benign
0.17
T;T;T
Polyphen
0.0
B;B;B
Vest4
0.058
MutPred
0.44
Loss of sheet (P = 0.0817);Loss of sheet (P = 0.0817);Loss of sheet (P = 0.0817);
MVP
0.87
MPC
0.22
ClinPred
0.11
T
GERP RS
1.5
Varity_R
0.062
gMVP
0.50

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

Other links and lift over

dbSNP: rs1449927772; hg19: chr15-80478486; COSMIC: COSV105066283; API