rs147439442

Positions:

chr6-24503366-C-T

Variant summary

Our verdict is Benign. Variant got -7 ACMG points: 2P and 9B. PM2BP4_StrongBP6BS1

The NM_001080.3(ALDH5A1):c.542C>T(p.Thr181Ile) variant causes a missense change. The variant allele was found at a frequency of 0.0000545 in 1,614,084 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 13/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Conflicting classifications of pathogenicity (no stars).

Frequency

Genomes: 𝑓 0.00025 ( 0 hom., cov: 32)

Exomes 𝑓: 0.000034 ( 0 hom. )

Consequence

ALDH5A1
NM_001080.3 missense

Scores

Clinical Significance

Conflicting classifications of pathogenicity criteria provided, conflicting classifications U:1B:1

Conservation

PhyloP100: 3.94

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:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Benign. Variant got -7 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

BP4

Computational evidence support a benign effect (MetaRNN=0.02234158).

BP6

Variant 6-24503366-C-T is Benign according to our data. Variant chr6-24503366-C-T is described in ClinVar as [Conflicting_classifications_of_pathogenicity]. Clinvar id is 529481.We mark this variant Likely_benign, oryginal submissions are: {Uncertain_significance=1, Likely_benign=1}.

BS1

Variant frequency is greater than expected in population afr. gnomad4 allele frequency = 0.000249 (38/152342) while in subpopulation AFR AF= 0.000818 (34/41586). AF 95% confidence interval is 0.000601. There are 0 homozygotes in gnomad4. There are 18 alleles in male gnomad4 subpopulation. Median coverage is 32. This position pass quality control queck.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
ALDH5A1	NM_001080.3 link	c.542C>T	p.Thr181Ile	missense_variant	3/10	ENST00000357578.8	NP_001071.1	P51649-1X5DQN2
ALDH5A1	NM_170740.1 link	c.542C>T	p.Thr181Ile	missense_variant	3/11		NP_733936.1	P51649-2X5D299
ALDH5A1	NM_001368954.1 link	c.542C>T	p.Thr181Ile	missense_variant	3/9		NP_001355883.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris	UniProt
ALDH5A1	ENST00000357578.8 link	c.542C>T	p.Thr181Ile	missense_variant	3/10	1	NM_001080.3	ENSP00000350191.3		P51649-1

Frequencies

GnomAD3 genomes

AF:

0.000243

AC:

AN:

152226

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.000796

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.000262

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:

0.00

Gnomad OTH

AF:

0.00

GnomAD3 exomes

AF:

0.0000916

AC:

AN:

251214

Hom.:

AF XY:

0.0000884

AC XY:

AN XY:

135786

show subpopulations

Gnomad AFR exome

AF:

0.00117

Gnomad AMR exome

AF:

0.0000578

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00

Gnomad SAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.00

Gnomad OTH exome

AF:

0.000326

GnomAD4 exome

AF:

0.0000342

AC:

AN:

1461742

Hom.:

Cov.:

AF XY:

0.0000303

AC XY:

AN XY:

727166

show subpopulations

Gnomad4 AFR exome

AF:

0.00122

Gnomad4 AMR exome

AF:

0.0000671

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.00

Gnomad4 SAS exome

AF:

0.00

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.00

Gnomad4 OTH exome

AF:

0.0000993

GnomAD4 genome

AF:

0.000249

AC:

AN:

152342

Hom.:

Cov.:

AF XY:

0.000242

AC XY:

AN XY:

74482

show subpopulations

Gnomad4 AFR

AF:

0.000818

Gnomad4 AMR

AF:

0.000261

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.00

Gnomad4 SAS

AF:

0.00

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.00

Gnomad4 OTH

AF:

0.00

Alfa

AF:

0.0000677

Hom.:

Bravo

AF:

0.000257

ESP6500AA

AF:

0.000681

AC:

ESP6500EA

AF:

0.00

AC:

ExAC

AF:

0.0000659

AC:

ClinVar

Significance: Conflicting classifications of pathogenicity

Submissions summary: Uncertain:1Benign:1

Revision: criteria provided, conflicting classifications

LINK: link

Submissions by phenotype

not provided

Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

GeneDx

Sep 11, 2024

In silico analysis supports that this missense variant has a deleterious effect on protein structure/function; Has not been previously published as pathogenic or benign to our knowledge -

Succinate-semialdehyde dehydrogenase deficiency

Benign:1

Likely benign, criteria provided, single submitter

clinical testing

Labcorp Genetics (formerly Invitae), Labcorp

Jan 21, 2024

- -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.15

BayesDel_addAF

Benign

-0.34

BayesDel_noAF

Benign

-0.31

CADD

Benign

DANN

Uncertain

0.99

DEOGEN2

Uncertain

0.51

D;T;.

Eigen

Benign

-0.28

Eigen_PC

Benign

-0.37

FATHMM_MKL

Benign

0.34

LIST_S2

Pathogenic

0.98

D;D;D

M_CAP

Benign

0.044

MetaRNN

Benign

0.022

T;T;T

MetaSVM

Benign

-1.0

MutationAssessor

Benign

0.38

N;.;N

PrimateAI

Benign

0.34

PROVEAN

Uncertain

-3.2

D;D;D

REVEL

Benign

0.19

Sift

Benign

0.031

D;D;T

Sift4G

Uncertain

0.014

D;D;D

Polyphen

0.92

P;.;.

Vest4

0.28

MVP

0.80

MPC

0.44

ClinPred

0.065

GERP RS

3.5

RBP_binding_hub_radar

0.0

RBP_regulation_power_radar

1.1

Varity_R

0.33

gMVP

0.65

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.

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

LitVar

Other links and lift over