dbSNP rs371923295: ALDH5A1:p.Gly21Asp (chr6-24495058-G-A) – ACMG Classification: Benign (-15 pts)

Variant summary

Our verdict is Benign. The variant received -15 ACMG points: 1P and 16B. PP2BP4_StrongBP6_Very_StrongBS1

The NM_001080.3(ALDH5A1):c.62G>A(p.Gly21Asp) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000563 in 1,349,426 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. Variant has been reported in ClinVar as Likely benign (★★). Synonymous variant affecting the same amino acid position (i.e. G21G) has been classified as Likely benign.

Frequency

Genomes: 𝑓 0.00016 ( 0 hom., cov: 32)

Exomes 𝑓: 0.000043 ( 0 hom. )

Consequence

ALDH5A1
NM_001080.3 missense

Scores

Clinical Significance

Likely benign criteria provided, multiple submitters, no conflicts B:2

Conservation

PhyloP100: 0.429

Publications

2 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 -15 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=0.0065173507).

BP6

Variant 6-24495058-G-A is Benign according to our data. Variant chr6-24495058-G-A is described in ClinVar as Likely_benign. ClinVar VariationId is 459991.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.

BS1

Variant frequency is greater than expected in population eas. GnomAd4 allele frequency = 0.000158 (24/152072) while in subpopulation EAS AF = 0.00428 (22/5142). AF 95% confidence interval is 0.0029. There are 0 homozygotes in GnomAd4. There are 16 alleles in the male GnomAd4 subpopulation. Median coverage is 32. This position passed quality control check.

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

Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
ALDH5A1	NM_001080.3	MANE Select	c.62G>A	p.Gly21Asp	missense	Exon 1 of 10	NP_001071.1	X5DQN2
ALDH5A1	NM_170740.1		c.62G>A	p.Gly21Asp	missense	Exon 1 of 11	NP_733936.1	X5D299
ALDH5A1	NM_001368954.1		c.62G>A	p.Gly21Asp	missense	Exon 1 of 9	NP_001355883.1

Ensembl Transcripts

Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
ALDH5A1	ENST00000357578.8	TSL:1 MANE Select	c.62G>A	p.Gly21Asp	missense	Exon 1 of 10	ENSP00000350191.3	P51649-1
ALDH5A1	ENST00000348925.2	TSL:1	c.62G>A	p.Gly21Asp	missense	Exon 1 of 11	ENSP00000314649.3	P51649-2
ALDH5A1	ENST00000859838.1		c.62G>A	p.Gly21Asp	missense	Exon 1 of 11	ENSP00000529897.1

Frequencies

GnomAD3 genomes

AF:

0.000158

AC:

AN:

151964

Hom.:

Cov.:

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:

0.00427

Gnomad SAS

AF:

0.000414

Gnomad FIN

AF:

0.00

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.00

Gnomad OTH

AF:

0.00

GnomAD2 exomes

AF:

0.000220

AC:

AN:

68048

AF XY:

0.000252

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.00

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00371

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.00

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.0000434

AC:

AN:

1197354

Hom.:

Cov.:

AF XY:

0.0000566

AC XY:

AN XY:

582738

show subpopulations

African (AFR)

AF:

0.00

AC:

AN:

25442

American (AMR)

AF:

0.00

AC:

AN:

19662

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

17996

East Asian (EAS)

AF:

0.000993

AC:

AN:

29218

South Asian (SAS)

AF:

0.000356

AC:

AN:

42096

European-Finnish (FIN)

AF:

0.00

AC:

AN:

26886

Middle Eastern (MID)

AF:

0.00

AC:

AN:

3290

European-Non Finnish (NFE)

AF:

0.00000102

AC:

AN:

984560

Other (OTH)

AF:

0.000145

AC:

AN:

48204

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.497

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Exome Het

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:

0.000158

AC:

AN:

152072

Hom.:

Cov.:

AF XY:

0.000215

AC XY:

AN XY:

74346

show subpopulations

African (AFR)

AF:

0.00

AC:

AN:

41538

American (AMR)

AF:

0.00

AC:

AN:

15282

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

3466

East Asian (EAS)

AF:

0.00428

AC:

AN:

5142

South Asian (SAS)

AF:

0.000414

AC:

AN:

4832

European-Finnish (FIN)

AF:

0.00

AC:

AN:

10570

Middle Eastern (MID)

AF:

0.00

AC:

AN:

292

European-Non Finnish (NFE)

AF:

0.00

AC:

AN:

67928

Other (OTH)

AF:

0.00

AC:

AN:

2110

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.462

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Genome Het

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:

0.00

Hom.:

Bravo

AF:

0.000238

ExAC

AF:

0.000246

AC:

Asia WGS

AF:

0.000869

AC:

AN:

3466

ClinVar

ClinVar submissions

Significance:Likely benign

Revision:criteria provided, multiple submitters, no conflicts

View on ClinVar

Pathogenic

VUS

Benign

Condition

Succinate-semialdehyde dehydrogenase deficiency (2)

Computational scores

Source: dbNSFP v4.9

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.094

BayesDel_addAF

Benign

-0.36

BayesDel_noAF

Benign

-0.29

CADD

Benign

(source)

DANN

Benign

0.94

DEOGEN2

Benign

0.16

Eigen

Benign

-1.1

Eigen_PC

Benign

-1.1

FATHMM_MKL

Benign

0.027

LIST_S2

Benign

0.51

M_CAP

Pathogenic

0.43

MetaRNN

Benign

0.0065

MetaSVM

Benign

-0.92

MutationAssessor

Benign

0.55

PhyloP100

0.43

PrimateAI

Uncertain

0.70

PROVEAN

Benign

-0.50

REVEL

Benign

0.17

Sift

Uncertain

0.0030

Sift4G

Uncertain

0.020

Polyphen

0.032

Vest4

0.20

MutPred

0.23

Loss of catalytic residue at G21 (P = 0.021)

MVP

0.72

MPC

0.39

ClinPred

0.083

GERP RS

0.73

PromoterAI

-0.046

Neutral

(source)

Varity_R

0.14

gMVP

0.37

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

Variant Effect in Transcripts

RefSeq Transcripts

Ensembl Transcripts

Frequencies

Age Distribution

Age Distribution

ClinVar

Computational scores

Splicing

Publications

Other links and lift over