rs915684170

Variant summary

Our verdict is Likely benign. Variant got -1 ACMG points: 0P and 1B. BP4

The NM_006796.3(AFG3L2):​c.365A>T​(p.Lys122Ile) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000273 in 1,614,116 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★★).

Frequency

Genomes: 𝑓 0.000013 ( 0 hom., cov: 32)
Exomes 𝑓: 0.000029 ( 0 hom. )

Consequence

AFG3L2
NM_006796.3 missense

Scores

1
15
3

Clinical Significance

Uncertain significance criteria provided, multiple submitters, no conflicts U:2

Conservation

PhyloP100: 2.47
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 Likely_benign. Variant got -1 ACMG points.

BP4
Computational evidence support a benign effect (MetaRNN=0.40919304).

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
AFG3L2NM_006796.3 linkuse as main transcriptc.365A>T p.Lys122Ile missense_variant 4/17 ENST00000269143.8 NP_006787.2 Q9Y4W6Q8TA92
AFG3L2XM_011525601.4 linkuse as main transcriptc.365A>T p.Lys122Ile missense_variant 4/16 XP_011523903.1

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
AFG3L2ENST00000269143.8 linkuse as main transcriptc.365A>T p.Lys122Ile missense_variant 4/171 NM_006796.3 ENSP00000269143.2 Q9Y4W6

Frequencies

GnomAD3 genomes
AF:
0.0000131
AC:
2
AN:
152228
Hom.:
0
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.0000241
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.00
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:
0.0000147
Gnomad OTH
AF:
0.00
GnomAD3 exomes
AF:
0.00000398
AC:
1
AN:
251482
Hom.:
0
AF XY:
0.00000736
AC XY:
1
AN XY:
135920
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.00
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:
0.00000879
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.0000287
AC:
42
AN:
1461888
Hom.:
0
Cov.:
32
AF XY:
0.0000289
AC XY:
21
AN XY:
727246
show subpopulations
Gnomad4 AFR exome
AF:
0.00
Gnomad4 AMR exome
AF:
0.00
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:
0.0000360
Gnomad4 OTH exome
AF:
0.0000331
GnomAD4 genome
AF:
0.0000131
AC:
2
AN:
152228
Hom.:
0
Cov.:
32
AF XY:
0.0000134
AC XY:
1
AN XY:
74368
show subpopulations
Gnomad4 AFR
AF:
0.0000241
Gnomad4 AMR
AF:
0.00
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.00
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.0000147
Gnomad4 OTH
AF:
0.00
Bravo
AF:
0.0000113
EpiCase
AF:
0.0000545
EpiControl
AF:
0.00

ClinVar

Significance: Uncertain significance
Submissions summary: Uncertain:2
Revision: criteria provided, multiple submitters, no conflicts
LINK: link

Submissions by phenotype

Spinocerebellar ataxia type 28 Uncertain:1
Uncertain significance, criteria provided, single submitterclinical testingIllumina Laboratory Services, IlluminaJun 01, 2021The AFG3L2 c.365A>T (p.Lys122Ile) variant is a missense variant. A literature search was performed for the gene, cDNA change, and amino acid change. No publications were found based on this search. The p.Lys122Ile variant is reported at a frequency of 0.000013 in the total population of the Genome Aggregation Database (v3.1.1) though this is based on two alleles in a region of good sequence coverage, so the variant is presumed to be rare. Based on the limited evidence, the p.Lys122Ile variant is classified as a variant of uncertain significance for spinocerebellar ataxia type 28. -
not provided Uncertain:1
Uncertain significance, criteria provided, single submitterclinical testingAthena DiagnosticsNov 10, 2020- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Uncertain
0.42
BayesDel_addAF
Uncertain
0.15
D
BayesDel_noAF
Uncertain
-0.020
CADD
Uncertain
25
DANN
Uncertain
0.99
DEOGEN2
Uncertain
0.49
T
Eigen
Uncertain
0.21
Eigen_PC
Uncertain
0.31
FATHMM_MKL
Pathogenic
0.98
D
LIST_S2
Benign
0.85
D
M_CAP
Uncertain
0.12
D
MetaRNN
Benign
0.41
T
MetaSVM
Uncertain
0.46
D
MutationAssessor
Uncertain
2.4
M
PrimateAI
Uncertain
0.48
T
PROVEAN
Uncertain
-3.3
D
REVEL
Uncertain
0.47
Sift
Uncertain
0.027
D
Sift4G
Uncertain
0.017
D
Polyphen
0.41
B
Vest4
0.52
MutPred
0.34
Loss of solvent accessibility (P = 0.0017);
MVP
0.94
MPC
0.056
ClinPred
0.92
D
GERP RS
4.4
RBP_binding_hub_radar
0.0
RBP_regulation_power_radar
1.7
Varity_R
0.21
gMVP
0.39

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: rs915684170; hg19: chr18-12367309; API