rs8097342

Variant summary

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

The NM_006796.3(AFG3L2):​c.752+6C>T variant causes a splice region, intron change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.756 in 1,611,922 control chromosomes in the GnomAD database, including 465,812 homozygotes. In-silico tool predicts a benign outcome for this variant. 3/3 splice prediction tools predict no significant impact on normal splicing. Variant has been reported in ClinVar as Benign (★★).

Frequency

Genomes: 𝑓 0.68 ( 36461 hom., cov: 31)
Exomes 𝑓: 0.76 ( 429351 hom. )

Consequence

AFG3L2
NM_006796.3 splice_region, intron

Scores

2
Splicing: ADA: 0.00002846
2

Clinical Significance

Benign criteria provided, multiple submitters, no conflicts B:14

Conservation

PhyloP100: 0.246
Variant links:
Genes affected
AFG3L2 (HGNC:315): (AFG3 like matrix AAA peptidase subunit 2) This gene encodes a protein localized in mitochondria and closely related to paraplegin. The paraplegin gene is responsible for an autosomal recessive form of hereditary spastic paraplegia. This gene is a candidate gene for other hereditary spastic paraplegias or neurodegenerative disorders. [provided by RefSeq, Jul 2008]

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Benign. Variant got -20 ACMG points.

BP4
Computational evidence support a benign effect (BayesDel_noAF=-0.91).
BP6
Variant 18-12359921-G-A is Benign according to our data. Variant chr18-12359921-G-A is described in ClinVar as [Benign]. Clinvar id is 136312.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars. Variant chr18-12359921-G-A is described in Lovd as [Benign].
BA1
GnomAd4 highest subpopulation (NFE) allele frequency at 95% confidence interval = 0.774 is higher than 0.05.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
AFG3L2NM_006796.3 linkc.752+6C>T splice_region_variant, intron_variant Intron 7 of 16 ENST00000269143.8 NP_006787.2 Q9Y4W6Q8TA92
AFG3L2XM_011525601.4 linkc.752+6C>T splice_region_variant, intron_variant Intron 7 of 15 XP_011523903.1

Ensembl

Gene Transcript HGVSc HGVSp Effect Exon rank TSL MANE Protein Appris UniProt
AFG3L2ENST00000269143.8 linkc.752+6C>T splice_region_variant, intron_variant Intron 7 of 16 1 NM_006796.3 ENSP00000269143.2 Q9Y4W6

Frequencies

GnomAD3 genomes
AF:
0.681
AC:
103331
AN:
151832
Hom.:
36443
Cov.:
31
show subpopulations
Gnomad AFR
AF:
0.495
Gnomad AMI
AF:
0.713
Gnomad AMR
AF:
0.624
Gnomad ASJ
AF:
0.745
Gnomad EAS
AF:
0.614
Gnomad SAS
AF:
0.768
Gnomad FIN
AF:
0.817
Gnomad MID
AF:
0.722
Gnomad NFE
AF:
0.780
Gnomad OTH
AF:
0.681
GnomAD3 exomes
AF:
0.714
AC:
179613
AN:
251392
Hom.:
65553
AF XY:
0.726
AC XY:
98628
AN XY:
135872
show subpopulations
Gnomad AFR exome
AF:
0.482
Gnomad AMR exome
AF:
0.556
Gnomad ASJ exome
AF:
0.743
Gnomad EAS exome
AF:
0.606
Gnomad SAS exome
AF:
0.771
Gnomad FIN exome
AF:
0.810
Gnomad NFE exome
AF:
0.777
Gnomad OTH exome
AF:
0.725
GnomAD4 exome
AF:
0.764
AC:
1114860
AN:
1459972
Hom.:
429351
Cov.:
49
AF XY:
0.765
AC XY:
555322
AN XY:
726352
show subpopulations
Gnomad4 AFR exome
AF:
0.492
Gnomad4 AMR exome
AF:
0.565
Gnomad4 ASJ exome
AF:
0.749
Gnomad4 EAS exome
AF:
0.592
Gnomad4 SAS exome
AF:
0.772
Gnomad4 FIN exome
AF:
0.808
Gnomad4 NFE exome
AF:
0.785
Gnomad4 OTH exome
AF:
0.746
GnomAD4 genome
AF:
0.680
AC:
103374
AN:
151950
Hom.:
36461
Cov.:
31
AF XY:
0.682
AC XY:
50655
AN XY:
74272
show subpopulations
Gnomad4 AFR
AF:
0.495
Gnomad4 AMR
AF:
0.623
Gnomad4 ASJ
AF:
0.745
Gnomad4 EAS
AF:
0.615
Gnomad4 SAS
AF:
0.768
Gnomad4 FIN
AF:
0.817
Gnomad4 NFE
AF:
0.780
Gnomad4 OTH
AF:
0.683
Alfa
AF:
0.732
Hom.:
18251
Bravo
AF:
0.654
Asia WGS
AF:
0.655
AC:
2274
AN:
3478
EpiCase
AF:
0.766
EpiControl
AF:
0.763

ClinVar

Significance: Benign
Submissions summary: Benign:14
Revision: criteria provided, multiple submitters, no conflicts
LINK: link

Submissions by phenotype

not specified Benign:6
-
Genome Diagnostics Laboratory, University Medical Center Utrecht
Significance: Benign
Review Status: no assertion criteria provided
Collection Method: clinical testing

- -

Sep 09, 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. -

-
Joint Genome Diagnostic Labs from Nijmegen and Maastricht, Radboudumc and MUMC+
Significance: Benign
Review Status: no assertion criteria provided
Collection Method: clinical testing

- -

May 21, 2015
Eurofins Ntd Llc (ga)
Significance: Benign
Review Status: criteria provided, single submitter
Collection Method: clinical testing

- -

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

- -

-
Clinical Genetics DNA and cytogenetics Diagnostics Lab, Erasmus MC, Erasmus Medical Center
Significance: Benign
Review Status: no assertion criteria provided
Collection Method: clinical testing

- -

not provided Benign:4
Feb 11, 2016
Mayo Clinic Laboratories, Mayo Clinic
Significance: Benign
Review Status: no assertion criteria provided
Collection Method: clinical testing

- -

Feb 03, 2025
Labcorp Genetics (formerly Invitae), Labcorp
Significance: Benign
Review Status: criteria provided, single submitter
Collection Method: clinical testing

- -

Jul 12, 2017
Athena Diagnostics
Significance: Benign
Review Status: criteria provided, single submitter
Collection Method: clinical testing

- -

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

- -

Spinocerebellar ataxia type 28 Benign:2
Jul 14, 2021
Genome-Nilou Lab
Significance: Benign
Review Status: criteria provided, single submitter
Collection Method: clinical testing

- -

Jan 13, 2018
Illumina Laboratory Services, Illumina
Significance: Benign
Review Status: criteria provided, single submitter
Collection Method: clinical testing

- -

Spastic ataxia 5 Benign:1
Jul 14, 2021
Genome-Nilou Lab
Significance: Benign
Review Status: criteria provided, single submitter
Collection Method: clinical testing

- -

Optic atrophy 12 Benign:1
Jul 14, 2021
Genome-Nilou Lab
Significance: Benign
Review Status: criteria provided, single submitter
Collection Method: clinical testing

- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
BayesDel_noAF
Benign
-0.91
CADD
Benign
7.8
DANN
Benign
0.79

Splicing

Name
Calibrated prediction
Score
Prediction
dbscSNV1_ADA
Benign
0.000028
dbscSNV1_RF
Benign
0.0
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: rs8097342; hg19: chr18-12359920; COSMIC: COSV52313339; API