chr17-19648974-G-A

Variant summary

Our verdict is Pathogenic. Variant got 14 ACMG points: 14P and 0B. PVS1PS1_ModeratePM2PP5_Moderate

The NM_000382.3(ALDH3A2):​c.3G>A​(p.Met1?) variant causes a start lost change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000209 in 1,434,772 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a pathogenic outcome for this variant. Variant has been reported in ClinVar as Likely pathogenic (★).

Frequency

Genomes: not found (cov: 33)
Exomes 𝑓: 0.0000021 ( 0 hom. )

Consequence

ALDH3A2
NM_000382.3 start_lost

Scores

3
8
5

Clinical Significance

Likely pathogenic criteria provided, single submitter P:1

Conservation

PhyloP100: 1.44
Variant links:
Genes affected
ALDH3A2 (HGNC:403): (aldehyde dehydrogenase 3 family member A2) Aldehyde dehydrogenase isozymes are thought to play a major role in the detoxification of aldehydes generated by alcohol metabolism and lipid peroxidation. This gene product catalyzes the oxidation of long-chain aliphatic aldehydes to fatty acid. Mutations in the gene cause Sjogren-Larsson syndrome. Alternatively spliced transcript variants encoding different isoforms have been found for this gene. [provided by RefSeq, Jul 2008]

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ACMG classification

Classification made for transcript

Verdict is Pathogenic. Variant got 14 ACMG points.

PVS1
Start lost variant, no new inframe start found.
PS1
Another start lost variant in NM_000382.3 (ALDH3A2) was described as [Likely_pathogenic] in ClinVar as 552722
PM2
Very rare variant in population databases, with high coverage;
PP5
Variant 17-19648974-G-A is Pathogenic according to our data. Variant chr17-19648974-G-A is described in ClinVar as [Likely_pathogenic]. Clinvar id is 551714.Status of the report is criteria_provided_single_submitter, 1 stars.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
ALDH3A2NM_000382.3 linkuse as main transcriptc.3G>A p.Met1? start_lost 1/10 ENST00000176643.11

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
ALDH3A2ENST00000176643.11 linkuse as main transcriptc.3G>A p.Met1? start_lost 1/101 NM_000382.3 P1P51648-1

Frequencies

GnomAD3 genomes
Cov.:
33
GnomAD4 exome
AF:
0.00000209
AC:
3
AN:
1434772
Hom.:
0
Cov.:
30
AF XY:
0.00000141
AC XY:
1
AN XY:
711202
show subpopulations
Gnomad4 AFR exome
AF:
0.0000301
Gnomad4 AMR exome
AF:
0.00
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.0000258
Gnomad4 SAS exome
AF:
0.00
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
9.09e-7
Gnomad4 OTH exome
AF:
0.00
GnomAD4 genome
Cov.:
33
Bravo
AF:
0.00000378

ClinVar

Significance: Likely pathogenic
Submissions summary: Pathogenic:1
Revision: criteria provided, single submitter
LINK: link

Submissions by phenotype

Sjögren-Larsson syndrome Pathogenic:1
Likely pathogenic, criteria provided, single submitterclinical testingCounsylMay 02, 2017- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
BayesDel_addAF
Pathogenic
0.63
D
BayesDel_noAF
Uncertain
0.040
CADD
Uncertain
24
DANN
Uncertain
0.98
DEOGEN2
Benign
0.0055
.;T;.;.;T;.;T;.;T
Eigen
Uncertain
0.30
Eigen_PC
Uncertain
0.31
FATHMM_MKL
Uncertain
0.80
D
LIST_S2
Uncertain
0.90
D;D;.;.;D;.;.;D;.
M_CAP
Pathogenic
0.96
D
MetaRNN
Pathogenic
0.98
D;D;D;D;D;D;D;D;D
MetaSVM
Uncertain
-0.28
T
MutationTaster
Benign
1.0
D;D;D;D;D
PROVEAN
Benign
-1.1
N;.;.;.;N;.;N;N;.
REVEL
Uncertain
0.50
Sift
Benign
0.035
D;.;.;.;D;.;D;D;.
Sift4G
Benign
0.19
T;T;T;T;T;T;T;T;T
Polyphen
0.97, 0.99
.;.;.;.;D;D;D;D;D
Vest4
0.46, 0.77, 0.76, 0.50, 0.78, 0.80, 0.76
MutPred
0.89
Loss of methylation at R6 (P = 0.1612);Loss of methylation at R6 (P = 0.1612);Loss of methylation at R6 (P = 0.1612);Loss of methylation at R6 (P = 0.1612);Loss of methylation at R6 (P = 0.1612);Loss of methylation at R6 (P = 0.1612);Loss of methylation at R6 (P = 0.1612);Loss of methylation at R6 (P = 0.1612);Loss of methylation at R6 (P = 0.1612);
MVP
0.90
ClinPred
0.99
D
GERP RS
5.3
RBP_binding_hub_radar
0.0
RBP_regulation_power_radar
1.6
Varity_R
0.78
gMVP
0.42

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: rs2084774156; hg19: chr17-19552287; API