rs371923295

Variant summary

Our verdict is Benign. The variant received -15 ACMG points: 1P and 16B. PP2BP4_StrongBP6_Very_StrongBS1

The NM_001080.3(ALDH5A1):​c.62G>A​(p.Gly21Asp) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000563 in 1,349,426 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 15/22 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Likely benign (★★). Synonymous variant affecting the same amino acid position (i.e. G21G) has been classified as Likely benign.

Frequency

Genomes: 𝑓 0.00016 ( 0 hom., cov: 32)
Exomes 𝑓: 0.000043 ( 0 hom. )

Consequence

ALDH5A1
NM_001080.3 missense

Scores

1
3
15

Clinical Significance

Likely benign criteria provided, multiple submitters, no conflicts B:2

Conservation

PhyloP100: 0.429

Publications

2 publications found
Variant links:
Genes affected
ALDH5A1 (HGNC:408): (aldehyde dehydrogenase 5 family member A1) This protein belongs to the aldehyde dehydrogenase family of proteins. This gene encodes a mitochondrial NAD(+)-dependent succinic semialdehyde dehydrogenase. A deficiency of this enzyme, known as 4-hydroxybutyricaciduria, is a rare inborn error in the metabolism of the neurotransmitter 4-aminobutyric acid (GABA). In response to the defect, physiologic fluids from patients accumulate GHB, a compound with numerous neuromodulatory properties. Two transcript variants encoding distinct isoforms have been identified for this gene. [provided by RefSeq, Jul 2008]
GPLD1 (HGNC:4459): (glycosylphosphatidylinositol specific phospholipase D1) Many proteins are tethered to the extracellular face of eukaryotic plasma membranes by a glycosylphosphatidylinositol (GPI) anchor. The GPI-anchor is a glycolipid found on many blood cells. The protein encoded by this gene is a GPI degrading enzyme. Glycosylphosphatidylinositol specific phospholipase D1 hydrolyzes the inositol phosphate linkage in proteins anchored by phosphatidylinositol glycans, thereby releasing the attached protein from the plasma membrane. [provided by RefSeq, Jul 2008]

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Benign. The variant received -15 ACMG points.

PP2
Missense variant in the gene, where a lot of missense mutations are associated with disease in ClinVar. The gene has 55 curated pathogenic missense variants (we use a threshold of 10). The gene has 13 curated benign missense variants. Gene score misZ: 0.73405 (below the threshold of 3.09). Trascript score misZ: 0.28023 (below the threshold of 3.09). GenCC associations: The gene is linked to succinic semialdehyde dehydrogenase deficiency.
BP4
Computational evidence support a benign effect (MetaRNN=0.0065173507).
BP6
Variant 6-24495058-G-A is Benign according to our data. Variant chr6-24495058-G-A is described in ClinVar as Likely_benign. ClinVar VariationId is 459991.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.
BS1
Variant frequency is greater than expected in population eas. GnomAd4 allele frequency = 0.000158 (24/152072) while in subpopulation EAS AF = 0.00428 (22/5142). AF 95% confidence interval is 0.0029. There are 0 homozygotes in GnomAd4. There are 16 alleles in the male GnomAd4 subpopulation. Median coverage is 32. This position passed quality control check.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
ALDH5A1NM_001080.3 linkc.62G>A p.Gly21Asp missense_variant Exon 1 of 10 ENST00000357578.8 NP_001071.1

Ensembl

Gene Transcript HGVSc HGVSp Effect Exon rank TSL MANE Protein Appris UniProt
ALDH5A1ENST00000357578.8 linkc.62G>A p.Gly21Asp missense_variant Exon 1 of 10 1 NM_001080.3 ENSP00000350191.3

Frequencies

GnomAD3 genomes
AF:
0.000158
AC:
24
AN:
151964
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:
0.00427
Gnomad SAS
AF:
0.000414
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.00
Gnomad OTH
AF:
0.00
GnomAD2 exomes
AF:
0.000220
AC:
15
AN:
68048
AF XY:
0.000252
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.00
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00371
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.00
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.0000434
AC:
52
AN:
1197354
Hom.:
0
Cov.:
31
AF XY:
0.0000566
AC XY:
33
AN XY:
582738
show subpopulations
African (AFR)
AF:
0.00
AC:
0
AN:
25442
American (AMR)
AF:
0.00
AC:
0
AN:
19662
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
17996
East Asian (EAS)
AF:
0.000993
AC:
29
AN:
29218
South Asian (SAS)
AF:
0.000356
AC:
15
AN:
42096
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
26886
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
3290
European-Non Finnish (NFE)
AF:
0.00000102
AC:
1
AN:
984560
Other (OTH)
AF:
0.000145
AC:
7
AN:
48204
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.497
Heterozygous variant carriers
0
4
8
11
15
19
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:
0.000158
AC:
24
AN:
152072
Hom.:
0
Cov.:
32
AF XY:
0.000215
AC XY:
16
AN XY:
74346
show subpopulations
African (AFR)
AF:
0.00
AC:
0
AN:
41538
American (AMR)
AF:
0.00
AC:
0
AN:
15282
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
3466
East Asian (EAS)
AF:
0.00428
AC:
22
AN:
5142
South Asian (SAS)
AF:
0.000414
AC:
2
AN:
4832
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
10570
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
292
European-Non Finnish (NFE)
AF:
0.00
AC:
0
AN:
67928
Other (OTH)
AF:
0.00
AC:
0
AN:
2110
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.462
Heterozygous variant carriers
0
2
3
5
6
8
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:
0.000238
ExAC
AF:
0.000246
AC:
26
Asia WGS
AF:
0.000869
AC:
3
AN:
3466

ClinVar

Significance: Likely benign
Submissions summary: Benign:2
Revision: criteria provided, multiple submitters, no conflicts
LINK: link

Submissions by phenotype

Succinate-semialdehyde dehydrogenase deficiency Benign:2
Aug 03, 2024
Labcorp Genetics (formerly Invitae), Labcorp
Significance:Likely benign
Review Status:criteria provided, single submitter
Collection Method:clinical testing

- -

Oct 31, 2017
Illumina Laboratory Services, Illumina
Significance:Likely benign
Review Status:criteria provided, single submitter
Collection Method:clinical testing

This variant was observed as part of a predisposition screen in an ostensibly healthy population. A literature search was performed for the gene, cDNA change, and amino acid change (where applicable). No publications were found based on this search. Allele frequency data from public databases allowed determination this variant is unlikely to cause disease. Therefore, this variant is classified as likely benign. -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.094
BayesDel_addAF
Benign
-0.36
T
BayesDel_noAF
Benign
-0.29
CADD
Benign
16
DANN
Benign
0.94
DEOGEN2
Benign
0.16
T;T;.
Eigen
Benign
-1.1
Eigen_PC
Benign
-1.1
FATHMM_MKL
Benign
0.027
N
LIST_S2
Benign
0.51
T;T;T
M_CAP
Pathogenic
0.43
D
MetaRNN
Benign
0.0065
T;T;T
MetaSVM
Benign
-0.92
T
MutationAssessor
Benign
0.55
N;.;N
PhyloP100
0.43
PrimateAI
Uncertain
0.70
T
PROVEAN
Benign
-0.50
N;N;N
REVEL
Benign
0.17
Sift
Uncertain
0.0030
D;D;D
Sift4G
Uncertain
0.020
D;D;D
Polyphen
0.032
B;.;.
Vest4
0.20
MutPred
0.23
Loss of catalytic residue at G21 (P = 0.021);Loss of catalytic residue at G21 (P = 0.021);Loss of catalytic residue at G21 (P = 0.021);
MVP
0.72
MPC
0.39
ClinPred
0.083
T
GERP RS
0.73
PromoterAI
-0.046
Neutral
Varity_R
0.14
gMVP
0.37
Mutation Taster
=95/5
polymorphism

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: rs371923295; hg19: chr6-24495286; API