chr6-24495246-G-C

Variant summary

Our verdict is Likely pathogenic. The variant received 7 ACMG points: 7P and 0B. PM2PP2PP3_Strong

The NM_001080.3(ALDH5A1):​c.250G>C​(p.Gly84Arg) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.0000223 in 1,524,542 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 Uncertain significance (★). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. G84S) has been classified as Uncertain significance.

Frequency

Genomes: 𝑓 0.0000066 ( 0 hom., cov: 32)
Exomes 𝑓: 0.000024 ( 0 hom. )

Consequence

ALDH5A1
NM_001080.3 missense

Scores

10
7
1

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 7.46

Publications

0 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]

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ACMG classification

Classification was made for transcript

Our verdict: Likely_pathogenic. The variant received 7 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
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, 0.943

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.250G>Cp.Gly84Arg
missense
Exon 1 of 10NP_001071.1X5DQN2
ALDH5A1
NM_170740.1
c.250G>Cp.Gly84Arg
missense
Exon 1 of 11NP_733936.1X5D299
ALDH5A1
NM_001368954.1
c.250G>Cp.Gly84Arg
missense
Exon 1 of 9NP_001355883.1

Ensembl Transcripts

Sel.
GeneTranscriptTagsHGVScHGVSpEffectExon RankProteinUniProt
ALDH5A1
ENST00000357578.8
TSL:1 MANE Select
c.250G>Cp.Gly84Arg
missense
Exon 1 of 10ENSP00000350191.3P51649-1
ALDH5A1
ENST00000348925.2
TSL:1
c.250G>Cp.Gly84Arg
missense
Exon 1 of 11ENSP00000314649.3P51649-2
ALDH5A1
ENST00000859838.1
c.250G>Cp.Gly84Arg
missense
Exon 1 of 11ENSP00000529897.1

Frequencies

GnomAD3 genomes
AF:
0.00000658
AC:
1
AN:
151992
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:
0.00
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.0000147
Gnomad OTH
AF:
0.00
GnomAD4 exome
AF:
0.0000240
AC:
33
AN:
1372550
Hom.:
0
Cov.:
31
AF XY:
0.0000251
AC XY:
17
AN XY:
677012
show subpopulations
African (AFR)
AF:
0.00
AC:
0
AN:
29764
American (AMR)
AF:
0.00
AC:
0
AN:
35128
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
24784
East Asian (EAS)
AF:
0.00
AC:
0
AN:
34508
South Asian (SAS)
AF:
0.00
AC:
0
AN:
78540
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
33424
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
4162
European-Non Finnish (NFE)
AF:
0.0000307
AC:
33
AN:
1074920
Other (OTH)
AF:
0.00
AC:
0
AN:
57320
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.487
Heterozygous variant carriers
0
3
5
8
10
13
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:
0.00000658
AC:
1
AN:
151992
Hom.:
0
Cov.:
32
AF XY:
0.00
AC XY:
0
AN XY:
74250
show subpopulations
African (AFR)
AF:
0.00
AC:
0
AN:
41404
American (AMR)
AF:
0.00
AC:
0
AN:
15272
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
3470
East Asian (EAS)
AF:
0.00
AC:
0
AN:
5138
South Asian (SAS)
AF:
0.00
AC:
0
AN:
4828
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
10600
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
314
European-Non Finnish (NFE)
AF:
0.0000147
AC:
1
AN:
67964
Other (OTH)
AF:
0.00
AC:
0
AN:
2090
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
Alfa
AF:
0.00
Hom.:
0
Bravo
AF:
0.00000378

ClinVar

ClinVar submissions
Significance:Uncertain significance
Revision:criteria provided, single submitter
View on ClinVar
Pathogenic
VUS
Benign
Condition
-
1
-
Succinate-semialdehyde dehydrogenase deficiency (1)

Computational scores

Source: dbNSFP v4.9

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.25
BayesDel_addAF
Pathogenic
0.33
D
BayesDel_noAF
Pathogenic
0.23
CADD
Uncertain
25
DANN
Uncertain
1.0
DEOGEN2
Uncertain
0.73
D
Eigen
Uncertain
0.57
Eigen_PC
Uncertain
0.43
FATHMM_MKL
Uncertain
0.90
D
LIST_S2
Pathogenic
0.99
D
M_CAP
Pathogenic
0.92
D
MetaRNN
Pathogenic
0.94
D
MetaSVM
Pathogenic
0.88
D
MutationAssessor
Uncertain
2.7
M
PhyloP100
7.5
PrimateAI
Pathogenic
0.91
D
PROVEAN
Pathogenic
-6.1
D
REVEL
Pathogenic
0.85
Sift
Pathogenic
0.0
D
Sift4G
Uncertain
0.0050
D
Polyphen
1.0
D
Vest4
0.67
MutPred
0.73
Gain of MoRF binding (P = 0.0503)
MVP
0.98
MPC
1.0
ClinPred
1.0
D
GERP RS
3.9
PromoterAI
-0.055
Neutral
RBP_binding_hub_radar
0.0
RBP_regulation_power_radar
1.9
Varity_R
0.92
gMVP
0.80
Mutation Taster
=22/78
disease causing

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: rs1034294766; hg19: chr6-24495474; API