chr6-24495126-C-G

Variant names:

Variant summary

Our verdict is Benign. The variant received -19 ACMG points: 1P and 20B. PP2BP4_StrongBP6_Very_StrongBS1BS2

The NM_001080.3(ALDH5A1):c.130C>G(p.Leu44Val) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000477 in 1,382,708 control chromosomes in the GnomAD database, including 3 homozygotes. In-silico tool predicts a benign outcome for this variant. 15/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Likely benign (★★).

Frequency

Genomes: 𝑓 0.0025 ( 1 hom., cov: 33)

Exomes 𝑓: 0.00023 ( 2 hom. )

Consequence

ALDH5A1
NM_001080.3 missense

Scores

Clinical Significance

Benign/Likely benign criteria provided, multiple submitters, no conflicts B:6

Conservation

PhyloP100: 0.340

Publications

1 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 links:

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]

GPLD1 links:

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Benign. The variant received -19 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=0.0041862726).

BP6

Variant 6-24495126-C-G is Benign according to our data. Variant chr6-24495126-C-G is described in ClinVar as Benign/Likely_benign. ClinVar VariationId is 356126.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.

BS1

Variant frequency is greater than expected in population afr. GnomAd4 allele frequency = 0.00247 (375/151868) while in subpopulation AFR AF = 0.00855 (355/41522). AF 95% confidence interval is 0.00782. There are 1 homozygotes in GnomAd4. There are 192 alleles in the male GnomAd4 subpopulation. Median coverage is 33. This position passed quality control check.

BS2

High Homozygotes in GnomAdExome4 at 2 AR gene

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
ALDH5A1	NM_001080.3 link	c.130C>G	p.Leu44Val	missense_variant	Exon 1 of 10	ENST00000357578.8	NP_001071.1	P51649-1X5DQN2

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
ALDH5A1	ENST00000357578.8 link	c.130C>G	p.Leu44Val	missense_variant	Exon 1 of 10	1	NM_001080.3	ENSP00000350191.3		P51649-1

Frequencies

GnomAD3 genomes

AF:

0.00240

AC:

364

AN:

151760

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.00831

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.000919

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:

0.0000442

Gnomad OTH

AF:

0.00144

GnomAD2 exomes

AF:

0.000470

AC:

AN:

25538

AF XY:

0.000392

show subpopulations

Gnomad AFR exome

AF:

0.0161

Gnomad AMR exome

AF:

0.000216

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.000199

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.000231

AC:

284

AN:

1230840

Hom.:

Cov.:

AF XY:

0.000206

AC XY:

124

AN XY:

601754

show subpopulations

African (AFR)

AF:

0.00899

AC:

218

AN:

24250

American (AMR)

AF:

0.000495

AC:

AN:

14130

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

18054

East Asian (EAS)

AF:

0.00

AC:

AN:

27022

South Asian (SAS)

AF:

0.0000914

AC:

AN:

54696

European-Finnish (FIN)

AF:

0.00

AC:

AN:

29998

Middle Eastern (MID)

AF:

0.00114

AC:

AN:

3496

European-Non Finnish (NFE)

AF:

0.0000159

AC:

AN:

1008648

Other (OTH)

AF:

0.000673

AC:

AN:

50546

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.500

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Exome Het

Exome Hom

Variant carriers

<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:

0.00247

AC:

375

AN:

151868

Hom.:

Cov.:

AF XY:

0.00259

AC XY:

192

AN XY:

74224

show subpopulations

African (AFR)

AF:

0.00855

AC:

355

AN:

41522

American (AMR)

AF:

0.000917

AC:

AN:

15260

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

3468

East Asian (EAS)

AF:

0.00

AC:

AN:

5126

South Asian (SAS)

AF:

0.00

AC:

AN:

4828

European-Finnish (FIN)

AF:

0.00

AC:

AN:

10504

Middle Eastern (MID)

AF:

0.00

AC:

AN:

292

European-Non Finnish (NFE)

AF:

0.0000442

AC:

AN:

67848

Other (OTH)

AF:

0.00142

AC:

AN:

2108

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.511

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Genome Het

Genome Hom

Variant carriers

<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:

0.000209

Hom.:

Bravo

AF:

0.00279

ExAC

AF:

0.000401

AC:

Asia WGS

AF:

0.00204

AC:

AN:

3442

ClinVar

Significance: Benign/Likely benign

Submissions summary: Benign:6

Revision: criteria provided, multiple submitters, no conflicts

LINK: link

Submissions by phenotype

not provided

Benign:3

Breakthrough Genomics, Breakthrough Genomics

Significance:Likely benign

Review Status:criteria provided, single submitter

Collection Method:not provided

- -

Dec 04, 2020

GeneDx

Significance:Likely benign

Review Status:criteria provided, single submitter

Collection Method:clinical testing

- -

Feb 23, 2017

Center for Pediatric Genomic Medicine, Children's Mercy Hospital and Clinics

Significance:Benign

Review Status:criteria provided, single submitter

Collection Method:clinical testing

- -

Succinate-semialdehyde dehydrogenase deficiency

Benign:2

Jan 27, 2025

Labcorp Genetics (formerly Invitae), Labcorp

Significance:Likely benign

Review Status:criteria provided, single submitter

Collection Method:clinical testing

- -

Jan 12, 2018

Illumina Laboratory Services, Illumina

Significance:Likely benign

Review Status:criteria provided, single submitter

Collection Method:clinical testing

This 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 likely benign is not then subjected to further curation. The score for this variant resulted in a classification of likely benign for this disease. -

ALDH5A1-related disorder

Benign:1

Nov 26, 2019

PreventionGenetics, part of Exact Sciences

Significance:Likely benign

Review Status:no assertion criteria provided

Collection Method:clinical testing

This variant is classified as likely benign based on ACMG/AMP sequence variant interpretation guidelines (Richards et al. 2015 PMID: 25741868, with internal and published modifications). -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.071

BayesDel_addAF

Benign

-0.47

BayesDel_noAF

Benign

-0.44

CADD

Benign

(source)

DANN

Benign

0.92

DEOGEN2

Benign

0.13

T;T;.

Eigen

Benign

-0.92

Eigen_PC

Benign

-0.88

FATHMM_MKL

Benign

0.055

LIST_S2

Benign

0.61

T;T;T

MetaRNN

Benign

0.0042

T;T;T

MetaSVM

Benign

-1.0

MutationAssessor

Benign

0.55

N;.;N

PhyloP100

0.34

PrimateAI

Pathogenic

0.79

PROVEAN

Benign

-0.55

N;N;N

REVEL

Benign

0.053

Sift

Benign

0.18

T;T;T

Sift4G

Benign

0.13

T;T;T

Polyphen

0.0070

B;.;.

Vest4

0.12

MVP

0.56

MPC

0.29

ClinPred

0.012

GERP RS

2.9

PromoterAI

-0.17

Neutral

(source)

RBP_binding_hub_radar

0.0

RBP_regulation_power_radar

1.6

Varity_R

0.046

gMVP

0.16

Mutation Taster

=95/5

polymorphism

(source)

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

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Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

Publications

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

Age Distribution

Age Distribution

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

Other links and lift over