rs367554353

Variant summary

Our verdict is Uncertain significance. The variant received 1 ACMG points: 3P and 2B. PM2PP2BP4_Moderate

The NM_001080.3(ALDH5A1):​c.885C>A​(p.His295Gln) 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 1,461,822 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. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar. Synonymous variant affecting the same amino acid position (i.e. H295H) has been classified as Likely benign.

Frequency

Genomes: not found (cov: 32)
Exomes 𝑓: 6.8e-7 ( 0 hom. )

Consequence

ALDH5A1
NM_001080.3 missense

Scores

3
15

Clinical Significance

Not reported in ClinVar

Conservation

PhyloP100: -2.93

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

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ACMG classification

Classification was made for transcript

Our verdict: Uncertain_significance. The variant received 1 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.
BP4
Computational evidence support a benign effect (MetaRNN=0.17567927).

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

Selected
GeneTranscriptTagsHGVScHGVSpEffectExon RankProteinUniProt
ALDH5A1
NM_001080.3
MANE Select
c.885C>Ap.His295Gln
missense
Exon 6 of 10NP_001071.1
ALDH5A1
NM_170740.1
c.924C>Ap.His308Gln
missense
Exon 7 of 11NP_733936.1
ALDH5A1
NM_001368954.1
c.741C>Ap.His247Gln
missense
Exon 5 of 9NP_001355883.1

Ensembl Transcripts

Selected
GeneTranscriptTagsHGVScHGVSpEffectExon RankProteinUniProt
ALDH5A1
ENST00000357578.8
TSL:1 MANE Select
c.885C>Ap.His295Gln
missense
Exon 6 of 10ENSP00000350191.3
ALDH5A1
ENST00000348925.2
TSL:1
c.924C>Ap.His308Gln
missense
Exon 7 of 11ENSP00000314649.3
ALDH5A1
ENST00000491546.5
TSL:5
c.801C>Ap.His267Gln
missense
Exon 5 of 9ENSP00000417687.1

Frequencies

GnomAD3 genomes
Cov.:
32
GnomAD4 exome
AF:
6.84e-7
AC:
1
AN:
1461822
Hom.:
0
Cov.:
33
AF XY:
0.00
AC XY:
0
AN XY:
727216
show subpopulations
African (AFR)
AF:
0.00
AC:
0
AN:
33478
American (AMR)
AF:
0.00
AC:
0
AN:
44722
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
26136
East Asian (EAS)
AF:
0.00
AC:
0
AN:
39700
South Asian (SAS)
AF:
0.00
AC:
0
AN:
86252
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
53420
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
5732
European-Non Finnish (NFE)
AF:
0.00
AC:
0
AN:
1111992
Other (OTH)
AF:
0.0000166
AC:
1
AN:
60390
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.475
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.:
32

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.9

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.16
BayesDel_addAF
Benign
-0.14
T
BayesDel_noAF
Benign
-0.45
CADD
Benign
0.0030
DANN
Benign
0.40
DEOGEN2
Benign
0.12
T
Eigen
Benign
-2.3
Eigen_PC
Benign
-2.3
FATHMM_MKL
Benign
0.046
N
LIST_S2
Uncertain
0.91
D
M_CAP
Uncertain
0.13
D
MetaRNN
Benign
0.18
T
MetaSVM
Benign
-0.80
T
MutationAssessor
Benign
-1.8
N
PhyloP100
-2.9
PrimateAI
Uncertain
0.48
T
PROVEAN
Benign
2.5
N
REVEL
Benign
0.27
Sift
Benign
1.0
T
Sift4G
Benign
1.0
T
Polyphen
0.42
B
Vest4
0.52
MutPred
0.55
Loss of loop (P = 0.0986)
MVP
0.42
MPC
0.28
ClinPred
0.097
T
GERP RS
-11
Varity_R
0.17
gMVP
0.50
Mutation Taster
=61/39
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: rs367554353; hg19: chr6-24520643; API