rs375628463

Variant summary

Our verdict is Pathogenic. The variant received 13 ACMG points: 13P and 0B. PP2PP3_StrongPP5_Very_Strong

The NM_001080.3(ALDH5A1):​c.803G>A​(p.Gly268Glu) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.000186 in 1,613,390 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 Pathogenic (★★).

Frequency

Genomes: 𝑓 0.000086 ( 0 hom., cov: 31)
Exomes 𝑓: 0.00020 ( 0 hom. )

Consequence

ALDH5A1
NM_001080.3 missense

Scores

13
5

Clinical Significance

Pathogenic criteria provided, multiple submitters, no conflicts P:10

Conservation

PhyloP100: 8.81

Publications

15 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]
ALDH5A1 Gene-Disease associations (from GenCC):
  • succinic semialdehyde dehydrogenase deficiency
    Inheritance: AR Classification: DEFINITIVE, STRONG, SUPPORTIVE Submitted by: Orphanet, ClinGen, G2P, Labcorp Genetics (formerly Invitae)

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Pathogenic. The variant received 13 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.
PP3
MetaRNN computational evidence supports a deleterious effect, 0.982
PP5
Variant 6-24515243-G-A is Pathogenic according to our data. Variant chr6-24515243-G-A is described in ClinVar as Pathogenic. ClinVar VariationId is 235512.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_001080.3. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Sel.
GeneTranscriptTagsHGVScHGVSpEffectExon RankProteinUniProt
ALDH5A1
NM_001080.3
MANE Select
c.803G>Ap.Gly268Glu
missense
Exon 5 of 10NP_001071.1
ALDH5A1
NM_170740.1
c.842G>Ap.Gly281Glu
missense
Exon 6 of 11NP_733936.1
ALDH5A1
NM_001368954.1
c.727-5158G>A
intron
N/ANP_001355883.1

Ensembl Transcripts

Sel.
GeneTranscriptTagsHGVScHGVSpEffectExon RankProteinUniProt
ALDH5A1
ENST00000357578.8
TSL:1 MANE Select
c.803G>Ap.Gly268Glu
missense
Exon 5 of 10ENSP00000350191.3
ALDH5A1
ENST00000348925.2
TSL:1
c.842G>Ap.Gly281Glu
missense
Exon 6 of 11ENSP00000314649.3
ALDH5A1
ENST00000859838.1
c.785G>Ap.Gly262Glu
missense
Exon 6 of 11ENSP00000529897.1

Frequencies

GnomAD3 genomes
AF:
0.0000858
AC:
13
AN:
151558
Hom.:
0
Cov.:
31
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:
0.00
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.000191
Gnomad OTH
AF:
0.00
GnomAD2 exomes
AF:
0.0000875
AC:
22
AN:
251478
AF XY:
0.000110
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.000145
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.000141
Gnomad OTH exome
AF:
0.000163
GnomAD4 exome
AF:
0.000196
AC:
287
AN:
1461832
Hom.:
0
Cov.:
34
AF XY:
0.000187
AC XY:
136
AN XY:
727214
show subpopulations
African (AFR)
AF:
0.00
AC:
0
AN:
33480
American (AMR)
AF:
0.000134
AC:
6
AN:
44724
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
26134
East Asian (EAS)
AF:
0.0000252
AC:
1
AN:
39690
South Asian (SAS)
AF:
0.00
AC:
0
AN:
86254
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
53406
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
5768
European-Non Finnish (NFE)
AF:
0.000249
AC:
277
AN:
1111988
Other (OTH)
AF:
0.0000497
AC:
3
AN:
60388
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.461
Heterozygous variant carriers
0
17
34
50
67
84
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Exome Het
Variant carriers
0
20
40
60
80
100
<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:
0.0000858
AC:
13
AN:
151558
Hom.:
0
Cov.:
31
AF XY:
0.0000270
AC XY:
2
AN XY:
73956
show subpopulations
African (AFR)
AF:
0.00
AC:
0
AN:
41260
American (AMR)
AF:
0.00
AC:
0
AN:
15226
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
3462
East Asian (EAS)
AF:
0.00
AC:
0
AN:
5178
South Asian (SAS)
AF:
0.00
AC:
0
AN:
4808
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
10378
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
316
European-Non Finnish (NFE)
AF:
0.000191
AC:
13
AN:
67932
Other (OTH)
AF:
0.00
AC:
0
AN:
2086
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.498
Heterozygous variant carriers
0
1
2
3
4
5
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:
0.000143
Hom.:
0
Bravo
AF:
0.0000982
TwinsUK
AF:
0.000270
AC:
1
ALSPAC
AF:
0.000778
AC:
3
ESP6500AA
AF:
0.00
AC:
0
ESP6500EA
AF:
0.000233
AC:
2
ExAC
AF:
0.0000824
AC:
10
EpiCase
AF:
0.000164
EpiControl
AF:
0.0000593

ClinVar

ClinVar submissions as Germline
Significance:Pathogenic
Revision:criteria provided, multiple submitters, no conflicts
View on ClinVar
Pathogenic
VUS
Benign
Condition
6
-
-
Succinate-semialdehyde dehydrogenase deficiency (6)
2
-
-
not provided (2)
1
-
-
ALDH5A1-related disorder (1)
1
-
-
Inborn genetic diseases (1)

Computational scores

Source: dbNSFP v4.9

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Pathogenic
0.95
BayesDel_addAF
Pathogenic
0.26
D
BayesDel_noAF
Pathogenic
0.40
CADD
Uncertain
24
DANN
Uncertain
1.0
DEOGEN2
Pathogenic
0.84
D
Eigen
Pathogenic
0.84
Eigen_PC
Pathogenic
0.70
FATHMM_MKL
Pathogenic
0.98
D
LIST_S2
Uncertain
0.94
D
M_CAP
Uncertain
0.13
D
MetaRNN
Pathogenic
0.98
D
MetaSVM
Uncertain
0.74
D
MutationAssessor
Pathogenic
3.5
M
PhyloP100
8.8
PrimateAI
Uncertain
0.59
T
PROVEAN
Pathogenic
-7.4
D
REVEL
Pathogenic
0.86
Sift
Pathogenic
0.0
D
Sift4G
Pathogenic
0.0
D
Polyphen
1.0
D
Vest4
0.97
MVP
0.98
MPC
1.1
ClinPred
0.98
D
GERP RS
5.3
Varity_R
0.99
gMVP
0.95
Mutation Taster
=1/99
disease causing (ClinVar)

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: rs375628463; hg19: chr6-24515471; API