chr6-24503369-C-T

Variant summary

Our verdict is Benign. Variant got -18 ACMG points: 2P and 20B. PM1BP4_StrongBP6_Very_StrongBA1

The NM_001080.3(ALDH5A1):​c.545C>T​(p.Pro182Leu) variant causes a missense change. The variant allele was found at a frequency of 0.0302 in 1,613,974 control chromosomes in the GnomAD database, including 1,292 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Benign (★★). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. P182V) has been classified as Uncertain significance.

Frequency

Genomes: 𝑓 0.029 ( 100 hom., cov: 32)
Exomes 𝑓: 0.030 ( 1192 hom. )

Consequence

ALDH5A1
NM_001080.3 missense

Scores

2
7
9

Clinical Significance

Benign criteria provided, multiple submitters, no conflicts B:6

Conservation

PhyloP100: 5.92
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]

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ACMG classification

Classification made for transcript

Verdict is Benign. Variant got -18 ACMG points.

PM1
In a hotspot region, there are 3 aminoacids with missense pathogenic changes in the window of +-8 aminoacids around while only 1 benign, 8 uncertain in NM_001080.3
BP4
Computational evidence support a benign effect (MetaRNN=0.0026880205).
BP6
Variant 6-24503369-C-T is Benign according to our data. Variant chr6-24503369-C-T is described in ClinVar as [Benign]. Clinvar id is 128344.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars. Variant chr6-24503369-C-T is described in Lovd as [Benign]. Variant chr6-24503369-C-T is described in Lovd as [Likely_benign].
BA1
GnomAd4 highest subpopulation (SAS) allele frequency at 95% confidence interval = 0.0915 is higher than 0.05.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
ALDH5A1NM_001080.3 linkuse as main transcriptc.545C>T p.Pro182Leu missense_variant 3/10 ENST00000357578.8
ALDH5A1NM_170740.1 linkuse as main transcriptc.545C>T p.Pro182Leu missense_variant 3/11
ALDH5A1NM_001368954.1 linkuse as main transcriptc.545C>T p.Pro182Leu missense_variant 3/9

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
ALDH5A1ENST00000357578.8 linkuse as main transcriptc.545C>T p.Pro182Leu missense_variant 3/101 NM_001080.3 P1P51649-1

Frequencies

GnomAD3 genomes
AF:
0.0285
AC:
4336
AN:
152214
Hom.:
99
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.0230
Gnomad AMI
AF:
0.0866
Gnomad AMR
AF:
0.0222
Gnomad ASJ
AF:
0.0271
Gnomad EAS
AF:
0.0829
Gnomad SAS
AF:
0.0998
Gnomad FIN
AF:
0.0162
Gnomad MID
AF:
0.0570
Gnomad NFE
AF:
0.0251
Gnomad OTH
AF:
0.0287
GnomAD3 exomes
AF:
0.0380
AC:
9539
AN:
251096
Hom.:
298
AF XY:
0.0410
AC XY:
5570
AN XY:
135728
show subpopulations
Gnomad AFR exome
AF:
0.0206
Gnomad AMR exome
AF:
0.0217
Gnomad ASJ exome
AF:
0.0302
Gnomad EAS exome
AF:
0.0803
Gnomad SAS exome
AF:
0.102
Gnomad FIN exome
AF:
0.0198
Gnomad NFE exome
AF:
0.0256
Gnomad OTH exome
AF:
0.0347
GnomAD4 exome
AF:
0.0304
AC:
44435
AN:
1461642
Hom.:
1192
Cov.:
33
AF XY:
0.0324
AC XY:
23590
AN XY:
727118
show subpopulations
Gnomad4 AFR exome
AF:
0.0251
Gnomad4 AMR exome
AF:
0.0216
Gnomad4 ASJ exome
AF:
0.0281
Gnomad4 EAS exome
AF:
0.0962
Gnomad4 SAS exome
AF:
0.0993
Gnomad4 FIN exome
AF:
0.0216
Gnomad4 NFE exome
AF:
0.0233
Gnomad4 OTH exome
AF:
0.0355
GnomAD4 genome
AF:
0.0285
AC:
4345
AN:
152332
Hom.:
100
Cov.:
32
AF XY:
0.0290
AC XY:
2160
AN XY:
74496
show subpopulations
Gnomad4 AFR
AF:
0.0230
Gnomad4 AMR
AF:
0.0222
Gnomad4 ASJ
AF:
0.0271
Gnomad4 EAS
AF:
0.0831
Gnomad4 SAS
AF:
0.0988
Gnomad4 FIN
AF:
0.0162
Gnomad4 NFE
AF:
0.0251
Gnomad4 OTH
AF:
0.0345
Alfa
AF:
0.0293
Hom.:
165
Bravo
AF:
0.0275
TwinsUK
AF:
0.0208
AC:
77
ALSPAC
AF:
0.0246
AC:
95
ESP6500AA
AF:
0.0241
AC:
106
ESP6500EA
AF:
0.0273
AC:
235
ExAC
AF:
0.0401
AC:
4866
Asia WGS
AF:
0.109
AC:
379
AN:
3478
EpiCase
AF:
0.0281
EpiControl
AF:
0.0276

ClinVar

Significance: Benign
Submissions summary: Benign:6
Revision: criteria provided, multiple submitters, no conflicts
LINK: link

Submissions by phenotype

not specified Benign:2
Benign, criteria provided, single submitterclinical testingEurofins Ntd Llc (ga)Jun 10, 2016- -
Likely benign, no assertion criteria providedclinical testingGenetic Services Laboratory, University of Chicago-Likely benign based on allele frequency in 1000 Genomes Project or ESP global frequency and its presence in a patient with a rare or unrelated disease phenotype. NOT Sanger confirmed. -
Succinate-semialdehyde dehydrogenase deficiency Benign:2
Benign, criteria provided, single submitterclinical testingIllumina Laboratory Services, IlluminaMar 06, 2018This variant was observed in the ICSL laboratory as part of a predisposition screen in an ostensibly healthy population. It had not been previously curated by ICSL or reported in the Human Gene Mutation Database (HGMD: prior to June 1st, 2018), and was therefore a candidate for classification through an automated scoring system. Utilizing variant allele frequency, disease prevalence and penetrance estimates, and inheritance mode, an automated score was calculated to assess if this variant is too frequent to cause the disease. Based on the score and internal cut-off values, a variant classified as benign is not then subjected to further curation. The score for this variant resulted in a classification of benign for this disease. -
Benign, criteria provided, single submitterclinical testingLabcorp Genetics (formerly Invitae), LabcorpFeb 01, 2024- -
ALDH5A1-related disorder Benign:1
Benign, no assertion criteria providedclinical testingPreventionGenetics, part of Exact SciencesJan 07, 2020This variant is classified as benign based on ACMG/AMP sequence variant interpretation guidelines (Richards et al. 2015 PMID: 25741868, with internal and published modifications). -
not provided Benign:1
Benign, criteria provided, single submitterclinical testingGeneDxJul 17, 2018This variant is associated with the following publications: (PMID: 12208142, 27056292, 19164088) -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.10
BayesDel_addAF
Benign
-0.41
T
BayesDel_noAF
Benign
-0.29
CADD
Benign
22
DANN
Uncertain
1.0
DEOGEN2
Uncertain
0.58
D;T;.
Eigen
Uncertain
0.28
Eigen_PC
Benign
0.16
FATHMM_MKL
Uncertain
0.88
D
LIST_S2
Pathogenic
0.99
D;D;D
MetaRNN
Benign
0.0027
T;T;T
MetaSVM
Uncertain
0.27
D
MutationAssessor
Benign
1.4
L;.;L
MutationTaster
Benign
0.70
D;N;N;N
PrimateAI
Benign
0.28
T
PROVEAN
Pathogenic
-5.2
D;D;D
REVEL
Uncertain
0.30
Sift
Benign
0.11
T;T;T
Sift4G
Uncertain
0.041
D;D;D
Polyphen
1.0
D;.;.
Vest4
0.22
MPC
0.68
ClinPred
0.024
T
GERP RS
5.2
RBP_binding_hub_radar
0.0
RBP_regulation_power_radar
1.1
Varity_R
0.34
gMVP
0.72

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: rs3765310; hg19: chr6-24503597; COSMIC: COSV62373886; API