rs10882640

Variant summary

Our verdict is Benign. Variant got -20 ACMG points: 0P and 20B. BP4_StrongBP6_Very_StrongBA1

The NM_002860.4(ALDH18A1):​c.2206+15G>A variant causes a intron change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.454 in 1,612,192 control chromosomes in the GnomAD database, including 174,439 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Benign (★★).

Frequency

Genomes: 𝑓 0.39 ( 12959 hom., cov: 31)
Exomes 𝑓: 0.46 ( 161480 hom. )

Consequence

ALDH18A1
NM_002860.4 intron

Scores

2

Clinical Significance

Benign criteria provided, multiple submitters, no conflicts B:11

Conservation

PhyloP100: -0.231
Variant links:
Genes affected
ALDH18A1 (HGNC:9722): (aldehyde dehydrogenase 18 family member A1) This gene is a member of the aldehyde dehydrogenase family and encodes a bifunctional ATP- and NADPH-dependent mitochondrial enzyme with both gamma-glutamyl kinase and gamma-glutamyl phosphate reductase activities. The encoded protein catalyzes the reduction of glutamate to delta1-pyrroline-5-carboxylate, a critical step in the de novo biosynthesis of proline, ornithine and arginine. Mutations in this gene lead to hyperammonemia, hypoornithinemia, hypocitrullinemia, hypoargininemia and hypoprolinemia and may be associated with neurodegeneration, cataracts and connective tissue diseases. Alternatively spliced transcript variants, encoding different isoforms, have been described for this gene. [provided by RefSeq, Jul 2008]

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ACMG classification

Classification made for transcript

Verdict is Benign. Variant got -20 ACMG points.

BP4
Computational evidence support a benign effect (BayesDel_noAF=-0.81).
BP6
Variant 10-95610182-C-T is Benign according to our data. Variant chr10-95610182-C-T is described in ClinVar as [Benign]. Clinvar id is 258825.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars. Variant chr10-95610182-C-T is described in Lovd as [Benign].
BA1
GnomAd4 highest subpopulation (AMR) allele frequency at 95% confidence interval = 0.488 is higher than 0.05.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
ALDH18A1NM_002860.4 linkuse as main transcriptc.2206+15G>A intron_variant ENST00000371224.7 NP_002851.2 P54886-1

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
ALDH18A1ENST00000371224.7 linkuse as main transcriptc.2206+15G>A intron_variant 1 NM_002860.4 ENSP00000360268.2 P54886-1
ALDH18A1ENST00000371221.3 linkuse as main transcriptc.2200+15G>A intron_variant 1 ENSP00000360265.3 P54886-2

Frequencies

GnomAD3 genomes
AF:
0.387
AC:
58801
AN:
151956
Hom.:
12971
Cov.:
31
show subpopulations
Gnomad AFR
AF:
0.201
Gnomad AMI
AF:
0.442
Gnomad AMR
AF:
0.498
Gnomad ASJ
AF:
0.427
Gnomad EAS
AF:
0.0844
Gnomad SAS
AF:
0.291
Gnomad FIN
AF:
0.472
Gnomad MID
AF:
0.453
Gnomad NFE
AF:
0.489
Gnomad OTH
AF:
0.392
GnomAD3 exomes
AF:
0.419
AC:
105115
AN:
250954
Hom.:
24311
AF XY:
0.416
AC XY:
56487
AN XY:
135648
show subpopulations
Gnomad AFR exome
AF:
0.194
Gnomad AMR exome
AF:
0.536
Gnomad ASJ exome
AF:
0.428
Gnomad EAS exome
AF:
0.0855
Gnomad SAS exome
AF:
0.308
Gnomad FIN exome
AF:
0.472
Gnomad NFE exome
AF:
0.487
Gnomad OTH exome
AF:
0.444
GnomAD4 exome
AF:
0.461
AC:
672796
AN:
1460118
Hom.:
161480
Cov.:
33
AF XY:
0.456
AC XY:
331467
AN XY:
726422
show subpopulations
Gnomad4 AFR exome
AF:
0.187
Gnomad4 AMR exome
AF:
0.534
Gnomad4 ASJ exome
AF:
0.419
Gnomad4 EAS exome
AF:
0.0872
Gnomad4 SAS exome
AF:
0.310
Gnomad4 FIN exome
AF:
0.477
Gnomad4 NFE exome
AF:
0.493
Gnomad4 OTH exome
AF:
0.435
GnomAD4 genome
AF:
0.387
AC:
58780
AN:
152074
Hom.:
12959
Cov.:
31
AF XY:
0.385
AC XY:
28588
AN XY:
74332
show subpopulations
Gnomad4 AFR
AF:
0.200
Gnomad4 AMR
AF:
0.498
Gnomad4 ASJ
AF:
0.427
Gnomad4 EAS
AF:
0.0842
Gnomad4 SAS
AF:
0.290
Gnomad4 FIN
AF:
0.472
Gnomad4 NFE
AF:
0.489
Gnomad4 OTH
AF:
0.388
Alfa
AF:
0.467
Hom.:
13533
Bravo
AF:
0.385
Asia WGS
AF:
0.173
AC:
607
AN:
3478

ClinVar

Significance: Benign
Submissions summary: Benign:11
Revision: criteria provided, multiple submitters, no conflicts
LINK: link

Submissions by phenotype

ALDH18A1-related de Barsy syndrome Benign:4
Benign, no assertion criteria providedclinical testingGenome Diagnostics Laboratory, Amsterdam University Medical CenterJul 06, 2016- -
Benign, no assertion criteria providedclinical testingDiagnostic Laboratory, Department of Genetics, University Medical Center Groningen-- -
Benign, criteria provided, single submitterclinical testingIllumina Laboratory Services, IlluminaJan 13, 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 testingGenome-Nilou LabJul 14, 2021- -
not specified Benign:2
Benign, criteria provided, single submitterclinical testingGeneDxSep 29, 2016This variant is considered likely benign or benign based on one or more of the following criteria: it is a conservative change, it occurs at a poorly conserved position in the protein, it is predicted to be benign by multiple in silico algorithms, and/or has population frequency not consistent with disease. -
Benign, criteria provided, single submitterclinical testingPreventionGenetics, part of Exact Sciences-- -
Cutis laxa, autosomal dominant 3 Benign:1
Benign, criteria provided, single submitterclinical testingGenome-Nilou LabJul 14, 2021- -
Autosomal recessive complex spastic paraplegia type 9B Benign:1
Benign, criteria provided, single submitterclinical testingGenome-Nilou LabJul 14, 2021- -
Hereditary spastic paraplegia 9A Benign:1
Benign, criteria provided, single submitterclinical testingGenome-Nilou LabJul 14, 2021- -
de Barsy syndrome;C1832669:Autosomal dominant spastic paraplegia type 9;C4225268:Cutis laxa, autosomal dominant 3 Benign:1
Benign, criteria provided, single submitterclinical testingLabcorp Genetics (formerly Invitae), LabcorpFeb 01, 2024- -
not provided Benign:1
Benign, criteria provided, single submitternot providedBreakthrough Genomics, Breakthrough Genomics-- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
BayesDel_noAF
Benign
-0.81
CADD
Benign
8.5
DANN
Benign
0.53
RBP_binding_hub_radar
0.0
RBP_regulation_power_radar
1.1

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: rs10882640; hg19: chr10-97369939; COSMIC: COSV64662210; COSMIC: COSV64662210; API