rs113433939

Variant summary

Our verdict is Benign. The variant received -20 ACMG points: 0P and 20B. BP4_StrongBP6_Very_StrongBS1BS2

The NM_020745.4(AARS2):​c.1196A>G​(p.Asn399Ser) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00185 in 1,614,078 control chromosomes in the GnomAD database, including 33 homozygotes. In-silico tool predicts a benign outcome for this variant. 16/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Likely benign (★★). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. N399H) has been classified as Likely benign.

Frequency

Genomes: 𝑓 0.0099 ( 21 hom., cov: 32)
Exomes 𝑓: 0.0010 ( 12 hom. )

Consequence

AARS2
NM_020745.4 missense

Scores

18

Clinical Significance

Benign/Likely benign criteria provided, multiple submitters, no conflicts B:5

Conservation

PhyloP100: -2.00

Publications

5 publications found
Variant links:
Genes affected
AARS2 (HGNC:21022): (alanyl-tRNA synthetase 2, mitochondrial) The protein encoded by this gene belongs to the class-II aminoacyl-tRNA synthetase family. Aminoacyl-tRNA synthetases play critical roles in mRNA translation by charging tRNAs with their cognate amino acids. The encoded protein is a mitochondrial enzyme that specifically aminoacylates alanyl-tRNA. Mutations in this gene are a cause of combined oxidative phosphorylation deficiency 8. [provided by RefSeq, Dec 2011]
TMEM151B (HGNC:21315): (transmembrane protein 151B) Predicted to be integral component of membrane. [provided by Alliance of Genome Resources, Apr 2022]

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 (MetaRNN=0.010842055).
BP6
Variant 6-44306384-T-C is Benign according to our data. Variant chr6-44306384-T-C is described in ClinVar as Benign/Likely_benign. ClinVar VariationId is 136228.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 = 0.00993 (1512/152208) while in subpopulation AFR AF = 0.0345 (1434/41530). AF 95% confidence interval is 0.033. There are 21 homozygotes in GnomAd4. There are 706 alleles in the male GnomAd4 subpopulation. Median coverage is 32. This position passed quality control check.
BS2
High Homozygotes in GnomAd4 at 21 AR,AD gene

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
AARS2NM_020745.4 linkc.1196A>G p.Asn399Ser missense_variant Exon 9 of 22 ENST00000244571.5 NP_065796.2 Q5JTZ9
AARS2XM_005249245.4 linkc.905A>G p.Asn302Ser missense_variant Exon 7 of 20 XP_005249302.1
AARS2XR_007059282.1 linkn.1220A>G non_coding_transcript_exon_variant Exon 9 of 14

Ensembl

Gene Transcript HGVSc HGVSp Effect Exon rank TSL MANE Protein Appris UniProt
AARS2ENST00000244571.5 linkc.1196A>G p.Asn399Ser missense_variant Exon 9 of 22 1 NM_020745.4 ENSP00000244571.4 Q5JTZ9
ENSG00000272442ENST00000505802.1 linkn.313-559T>C intron_variant Intron 1 of 9 2 ENSP00000424257.1 H0Y9J4
TMEM151BENST00000438774.2 linkc.577-559T>C intron_variant Intron 2 of 2 3 ENSP00000409337.2 Q8IW70-2

Frequencies

GnomAD3 genomes
AF:
0.00994
AC:
1512
AN:
152088
Hom.:
21
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.0346
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.00321
Gnomad ASJ
AF:
0.00
Gnomad EAS
AF:
0.00
Gnomad SAS
AF:
0.000207
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00633
Gnomad NFE
AF:
0.000162
Gnomad OTH
AF:
0.00717
GnomAD2 exomes
AF:
0.00251
AC:
632
AN:
251466
AF XY:
0.00174
show subpopulations
Gnomad AFR exome
AF:
0.0351
Gnomad AMR exome
AF:
0.00136
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.0000352
Gnomad OTH exome
AF:
0.00114
GnomAD4 exome
AF:
0.00100
AC:
1468
AN:
1461870
Hom.:
12
Cov.:
33
AF XY:
0.000836
AC XY:
608
AN XY:
727236
show subpopulations
African (AFR)
AF:
0.0361
AC:
1208
AN:
33480
American (AMR)
AF:
0.00143
AC:
64
AN:
44722
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
26136
East Asian (EAS)
AF:
0.00
AC:
0
AN:
39700
South Asian (SAS)
AF:
0.0000812
AC:
7
AN:
86258
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
53416
Middle Eastern (MID)
AF:
0.00173
AC:
10
AN:
5768
European-Non Finnish (NFE)
AF:
0.0000450
AC:
50
AN:
1111994
Other (OTH)
AF:
0.00214
AC:
129
AN:
60396
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.474
Heterozygous variant carriers
0
102
203
305
406
508
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Exome Het
Exome Hom
Variant carriers
0
38
76
114
152
190
<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:
0.00993
AC:
1512
AN:
152208
Hom.:
21
Cov.:
32
AF XY:
0.00949
AC XY:
706
AN XY:
74428
show subpopulations
African (AFR)
AF:
0.0345
AC:
1434
AN:
41530
American (AMR)
AF:
0.00320
AC:
49
AN:
15306
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
3472
East Asian (EAS)
AF:
0.00
AC:
0
AN:
5130
South Asian (SAS)
AF:
0.000207
AC:
1
AN:
4828
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
10622
Middle Eastern (MID)
AF:
0.00680
AC:
2
AN:
294
European-Non Finnish (NFE)
AF:
0.000162
AC:
11
AN:
68000
Other (OTH)
AF:
0.00710
AC:
15
AN:
2114
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.505
Heterozygous variant carriers
0
75
151
226
302
377
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Genome Het
Genome Hom
Variant carriers
0
20
40
60
80
100
<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:
0.00426
Hom.:
31
Bravo
AF:
0.0111
ESP6500AA
AF:
0.0334
AC:
147
ESP6500EA
AF:
0.00
AC:
0
ExAC
AF:
0.00314
AC:
381
Asia WGS
AF:
0.00173
AC:
6
AN:
3478
EpiCase
AF:
0.0000545
EpiControl
AF:
0.0000593

ClinVar

Significance: Benign/Likely benign
Submissions summary: Benign:5
Revision: criteria provided, multiple submitters, no conflicts
LINK: link

Submissions by phenotype

not provided Benign:3
Jan 27, 2017
Center for Pediatric Genomic Medicine, Children's Mercy Hospital and Clinics
Significance:Likely benign
Review Status:criteria provided, single submitter
Collection Method:clinical testing

- -

Jan 19, 2025
Labcorp Genetics (formerly Invitae), Labcorp
Significance:Benign
Review Status:criteria provided, single submitter
Collection Method:clinical testing

- -

-
Breakthrough Genomics, Breakthrough Genomics
Significance:Likely benign
Review Status:criteria provided, single submitter
Collection Method:not provided

- -

not specified Benign:1
May 23, 2013
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. -

Combined oxidative phosphorylation defect type 8 Benign:1
Jan 12, 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. -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.056
BayesDel_addAF
Benign
-0.65
T
BayesDel_noAF
Benign
-0.69
CADD
Benign
0.060
DANN
Benign
0.60
DEOGEN2
Benign
0.088
T
Eigen
Benign
-1.5
Eigen_PC
Benign
-1.6
FATHMM_MKL
Benign
0.30
N
LIST_S2
Benign
0.36
T
MetaRNN
Benign
0.011
T
MetaSVM
Benign
-1.0
T
MutationAssessor
Benign
0.73
N
PhyloP100
-2.0
PrimateAI
Benign
0.24
T
PROVEAN
Benign
-1.2
N
REVEL
Benign
0.083
Sift
Benign
0.21
T
Sift4G
Benign
0.19
T
Polyphen
0.0010
B
Vest4
0.068
MVP
0.27
MPC
0.18
ClinPred
0.0062
T
GERP RS
-7.4
RBP_binding_hub_radar
0.0
RBP_regulation_power_radar
1.4
Varity_R
0.027
gMVP
0.20
Mutation Taster
=96/4
polymorphism

Splicing

Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
0.010
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: rs113433939; hg19: chr6-44274121; API