chr18-12358903-C-T

Position:

chr18-12358903-C-T

Variant summary

Our verdict is Likely benign. Variant got -5 ACMG points: 0P and 5B. BP4_StrongBP6

The NM_006796.3(AFG3L2):c.793G>A(p.Ala265Thr) variant causes a missense change. The variant allele was found at a frequency of 0.000148 in 1,614,094 control chromosomes in the GnomAD database, including 1 homozygotes. In-silico tool predicts a benign outcome for this variant. 13/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Conflicting classifications of pathogenicity (no stars).

Frequency

Genomes: 𝑓 0.00064 ( 0 hom., cov: 33)

Exomes 𝑓: 0.000096 ( 1 hom. )

Consequence

AFG3L2
NM_006796.3 missense

Scores

Clinical Significance

Conflicting classifications of pathogenicity criteria provided, conflicting classifications U:1B:4

Conservation

PhyloP100: 3.86

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]

AFG3L2 links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Likely_benign. Variant got -5 ACMG points.

BP4

Computational evidence support a benign effect (MetaRNN=0.017845541).

BP6

Variant 18-12358903-C-T is Benign according to our data. Variant chr18-12358903-C-T is described in ClinVar as [Conflicting_classifications_of_pathogenicity]. Clinvar id is 326107.We mark this variant Likely_benign, oryginal submissions are: {Likely_benign=1, Benign=2, Uncertain_significance=1}.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
AFG3L2	NM_006796.3 linkuse as main transcript	c.793G>A	p.Ala265Thr	missense_variant	8/17	ENST00000269143.8	NP_006787.2
AFG3L2	XM_011525601.4 linkuse as main transcript	c.793G>A	p.Ala265Thr	missense_variant	8/16		XP_011523903.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris	UniProt
AFG3L2	ENST00000269143.8 linkuse as main transcript	c.793G>A	p.Ala265Thr	missense_variant	8/17	1	NM_006796.3	ENSP00000269143	P1

Frequencies

GnomAD3 genomes

AF:

0.000644

AC:

AN:

152150

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.00205

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.000589

Gnomad ASJ

AF:

0.00

Gnomad EAS

AF:

0.00

Gnomad SAS

AF:

0.000207

Gnomad FIN

AF:

0.00

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.0000441

Gnomad OTH

AF:

0.00

GnomAD3 exomes

AF:

0.000175

AC:

AN:

250880

Hom.:

AF XY:

0.000103

AC XY:

AN XY:

135640

show subpopulations

Gnomad AFR exome

AF:

0.00216

Gnomad AMR exome

AF:

0.0000868

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00

Gnomad SAS exome

AF:

0.0000653

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.0000353

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.0000965

AC:

141

AN:

1461826

Hom.:

Cov.:

AF XY:

0.0000853

AC XY:

AN XY:

727204

show subpopulations

Gnomad4 AFR exome

AF:

0.00197

Gnomad4 AMR exome

AF:

0.000134

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.00

Gnomad4 SAS exome

AF:

0.0000464

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.0000432

Gnomad4 OTH exome

AF:

0.000248

GnomAD4 genome

AF:

0.000644

AC:

AN:

152268

Hom.:

Cov.:

AF XY:

0.000484

AC XY:

AN XY:

74454

show subpopulations

Gnomad4 AFR

AF:

0.00205

Gnomad4 AMR

AF:

0.000588

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.00

Gnomad4 SAS

AF:

0.000208

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.0000441

Gnomad4 OTH

AF:

0.00

Alfa

AF:

0.000146

Hom.:

Bravo

AF:

0.000854

ESP6500AA

AF:

0.00159

AC:

ESP6500EA

AF:

0.00

AC:

ExAC

AF:

0.000198

AC:

Asia WGS

AF:

0.000289

AC:

AN:

3478

ClinVar

Significance: Conflicting classifications of pathogenicity

Submissions summary: Uncertain:1Benign:4

Revision: criteria provided, conflicting classifications

LINK: link

Submissions by phenotype

not provided

Uncertain:1Benign:2

Benign, criteria provided, single submitter	clinical testing	Athena Diagnostics	Dec 21, 2017	- -
Likely benign, criteria provided, single submitter	clinical testing	Labcorp Genetics (formerly Invitae), Labcorp	Dec 28, 2023	- -
Uncertain significance, criteria provided, single submitter	clinical testing	GeneDx	Apr 27, 2023	Has not been previously published as pathogenic or benign to our knowledge; In silico analysis supports that this missense variant does not alter protein structure/function -

AFG3L2-related disorder

Benign:1

Likely benign, no assertion criteria provided

clinical testing

PreventionGenetics, part of Exact Sciences

May 10, 2022

This variant is classified as likely benign based on ACMG/AMP sequence variant interpretation guidelines (Richards et al. 2015 PMID: 25741868, with internal and published modifications). -

Spinocerebellar ataxia type 28

Benign:1

Benign, criteria provided, single submitter

clinical testing

Illumina Laboratory Services, Illumina

Jan 12, 2018

- -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.10

BayesDel_addAF

Benign

-0.30

BayesDel_noAF

Benign

-0.22

CADD

Benign

DANN

Uncertain

1.0

DEOGEN2

Benign

0.31

Eigen

Benign

-0.19

Eigen_PC

Benign

-0.084

FATHMM_MKL

Pathogenic

0.97

LIST_S2

Uncertain

0.86

M_CAP

Benign

0.074

MetaRNN

Benign

0.018

MetaSVM

Uncertain

0.26

MutationAssessor

Benign

1.6

MutationTaster

Benign

1.0

PrimateAI

Uncertain

0.54

PROVEAN

Benign

-1.7

REVEL

Benign

0.28

Sift

Uncertain

0.0090

Sift4G

Uncertain

0.0060

Polyphen

0.0030

Vest4

0.24

MVP

0.97

MPC

0.85

ClinPred

0.027

GERP RS

4.6

RBP_binding_hub_radar

0.0

RBP_regulation_power_radar

1.1

Varity_R

0.15

gMVP

0.64

Splicing

Name

Calibrated prediction

Score

Prediction

SpliceAI score (max)

0.050

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.

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

LitVar

Other links and lift over