rs10882640

Variant summary

Our verdict is Benign. The variant received -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]

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Benign. The variant received -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 rank MANE Protein UniProt
ALDH18A1NM_002860.4 linkc.2206+15G>A intron_variant Intron 17 of 17 ENST00000371224.7 NP_002851.2 P54886-1

Ensembl

Gene Transcript HGVSc HGVSp Effect Exon rank TSL MANE Protein Appris UniProt
ALDH18A1ENST00000371224.7 linkc.2206+15G>A intron_variant Intron 17 of 17 1 NM_002860.4 ENSP00000360268.2 P54886-1
ALDH18A1ENST00000371221.3 linkc.2200+15G>A intron_variant Intron 17 of 17 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
GnomAD2 exomes
AF:
0.419
AC:
105115
AN:
250954
AF XY:
0.416
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 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
African (AFR)
AF:
0.187
AC:
6269
AN:
33450
American (AMR)
AF:
0.534
AC:
23840
AN:
44678
Ashkenazi Jewish (ASJ)
AF:
0.419
AC:
10929
AN:
26114
East Asian (EAS)
AF:
0.0872
AC:
3457
AN:
39646
South Asian (SAS)
AF:
0.310
AC:
26746
AN:
86212
European-Finnish (FIN)
AF:
0.477
AC:
25442
AN:
53324
Middle Eastern (MID)
AF:
0.409
AC:
2351
AN:
5750
European-Non Finnish (NFE)
AF:
0.493
AC:
547545
AN:
1110616
Other (OTH)
AF:
0.435
AC:
26217
AN:
60328
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.492
Heterozygous variant carriers
0
16902
33805
50707
67610
84512
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Exome Het
Exome Hom
Variant carriers
0
15734
31468
47202
62936
78670
<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:
0.387
AC:
58780
AN:
152074
Hom.:
12959
Cov.:
31
AF XY:
0.385
AC XY:
28588
AN XY:
74332
show subpopulations
African (AFR)
AF:
0.200
AC:
8320
AN:
41498
American (AMR)
AF:
0.498
AC:
7597
AN:
15266
Ashkenazi Jewish (ASJ)
AF:
0.427
AC:
1481
AN:
3472
East Asian (EAS)
AF:
0.0842
AC:
436
AN:
5176
South Asian (SAS)
AF:
0.290
AC:
1396
AN:
4814
European-Finnish (FIN)
AF:
0.472
AC:
4993
AN:
10578
Middle Eastern (MID)
AF:
0.442
AC:
130
AN:
294
European-Non Finnish (NFE)
AF:
0.489
AC:
33205
AN:
67952
Other (OTH)
AF:
0.388
AC:
819
AN:
2112
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.503
Heterozygous variant carriers
0
1726
3453
5179
6906
8632
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Genome Het
Genome Hom
Variant carriers
0
546
1092
1638
2184
2730
<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:
0.456
Hom.:
16721
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
Jan 13, 2018
Illumina Laboratory Services, Illumina
Significance: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 benign is not then subjected to further curation. The score for this variant resulted in a classification of benign for this disease. -

-
Diagnostic Laboratory, Department of Genetics, University Medical Center Groningen
Significance:Benign
Review Status:no assertion criteria provided
Collection Method:clinical testing

- -

Jul 06, 2016
Genome Diagnostics Laboratory, Amsterdam University Medical Center
Significance:Benign
Review Status:no assertion criteria provided
Collection Method:clinical testing

- -

Jul 14, 2021
Genome-Nilou Lab
Significance:Benign
Review Status:criteria provided, single submitter
Collection Method:clinical testing

- -

not specified Benign:2
-
PreventionGenetics, part of Exact Sciences
Significance:Benign
Review Status:criteria provided, single submitter
Collection Method:clinical testing

- -

Sep 29, 2016
GeneDx
Significance:Benign
Review Status:criteria provided, single submitter
Collection Method:clinical testing

This 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. -

Cutis laxa, autosomal dominant 3 Benign:1
Jul 14, 2021
Genome-Nilou Lab
Significance:Benign
Review Status:criteria provided, single submitter
Collection Method:clinical testing

- -

Autosomal recessive complex spastic paraplegia type 9B Benign:1
Jul 14, 2021
Genome-Nilou Lab
Significance:Benign
Review Status:criteria provided, single submitter
Collection Method:clinical testing

- -

Hereditary spastic paraplegia 9A Benign:1
Jul 14, 2021
Genome-Nilou Lab
Significance:Benign
Review Status:criteria provided, single submitter
Collection Method:clinical testing

- -

de Barsy syndrome;C1832669:Autosomal dominant spastic paraplegia type 9;C4225268:Cutis laxa, autosomal dominant 3 Benign:1
Feb 03, 2025
Labcorp Genetics (formerly Invitae), Labcorp
Significance:Benign
Review Status:criteria provided, single submitter
Collection Method:clinical testing

- -

not provided Benign:1
-
Breakthrough Genomics, Breakthrough Genomics
Significance:Benign
Review Status:criteria provided, single submitter
Collection Method:not provided

- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
BayesDel_noAF
Benign
-0.81
CADD
Benign
8.5
DANN
Benign
0.53
PhyloP100
-0.23
RBP_binding_hub_radar
0.0
RBP_regulation_power_radar
1.1
Mutation Taster
=100/0
polymorphism (auto)

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

Other links and lift over

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