Variant chr19-44891608-G-T details in Genebe, Genetics Data Aggregator

Variant summary

Our verdict is Benign. Variant got -8 ACMG points: 0P and 8B. BP4_StrongBS2

The ENST00000426677.7(TOMM40):c.193G>T(p.Ala65Ser) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000752 in 1,475,754 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 14/19 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. A65P) has been classified as Uncertain significance.

Frequency

Genomes: 𝑓 0.00041 ( 0 hom., cov: 33)

Exomes 𝑓: 0.000037 ( 0 hom. )

Consequence

TOMM40
ENST00000426677.7 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 0.226

Variant links:

Genes affected

TOMM40 (HGNC:18001): (translocase of outer mitochondrial membrane 40) The protein encoded by this gene is localized in the outer membrane of the mitochondria. It is the channel-forming subunit of the translocase of the mitochondrial outer membrane (TOM) complex that is essential for import of protein precursors into mitochondria. Alternatively spliced transcript variants have been found for this gene. [provided by RefSeq, Aug 2015]

TOMM40 links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Benign. Variant got -8 ACMG points.

BP4

Computational evidence support a benign effect (MetaRNN=0.019634455).

BS2

High AC in GnomAd4 at 62 AD gene.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
TOMM40	NM_001128917.2 linkuse as main transcript	c.193G>T	p.Ala65Ser	missense_variant	1/9	ENST00000426677.7	NP_001122389.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris	UniProt
TOMM40	ENST00000426677.7 linkuse as main transcript	c.193G>T	p.Ala65Ser	missense_variant	1/9	1	NM_001128917.2	ENSP00000410339	P1	O96008-1

Frequencies

GnomAD3 genomes

AF:

0.000407

AC:

AN:

152202

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.00145

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.0000654

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:

0.00

Gnomad OTH

AF:

0.000478

GnomAD3 exomes

AF:

0.0000122

AC:

AN:

82130

Hom.:

AF XY:

0.00

AC XY:

AN XY:

47290

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.0000609

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:

0.00

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.0000370

AC:

AN:

1323434

Hom.:

Cov.:

AF XY:

0.0000276

AC XY:

AN XY:

652534

show subpopulations

Gnomad4 AFR exome

AF:

0.00149

Gnomad4 AMR exome

AF:

0.0000354

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.00

Gnomad4 SAS exome

AF:

0.0000135

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

9.53e-7

Gnomad4 OTH exome

AF:

0.000110

GnomAD4 genome

AF:

0.000407

AC:

AN:

152320

Hom.:

Cov.:

AF XY:

0.000443

AC XY:

AN XY:

74478

show subpopulations

Gnomad4 AFR

AF:

0.00144

Gnomad4 AMR

AF:

0.0000654

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.00

Gnomad4 SAS

AF:

0.00

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.00

Gnomad4 OTH

AF:

0.000473

Bravo

AF:

0.000431

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

not specified

Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

Ambry Genetics

Aug 21, 2023

The c.193G>T (p.A65S) alteration is located in exon 2 (coding exon 1) of the TOMM40 gene. This alteration results from a G to T substitution at nucleotide position 193, causing the alanine (A) at amino acid position 65 to be replaced by a serine (S). Based on insufficient or conflicting evidence, the clinical significance of this alteration remains unclear. -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.071

BayesDel_addAF

Benign

-0.50

BayesDel_noAF

Benign

-0.50

CADD

Benign

7.3

DANN

Benign

0.89

DEOGEN2

Benign

0.070

T;T;.;T;T

Eigen

Benign

-1.3

Eigen_PC

Benign

-1.3

FATHMM_MKL

Benign

0.058

LIST_S2

Benign

0.39

T;.;T;.;T

M_CAP

Benign

0.0090

MetaRNN

Benign

0.020

T;T;T;T;T

MetaSVM

Benign

-1.0

MutationAssessor

Benign

0.34

N;N;N;N;.

MutationTaster

Benign

1.0

N;N;N;N

PrimateAI

Uncertain

0.71

PROVEAN

Benign

-0.25

N;N;.;N;.

REVEL

Benign

0.018

Sift

Benign

0.33

T;T;.;T;.

Sift4G

Benign

0.57

T;T;T;T;T

Polyphen

0.0040

B;B;B;B;.

Vest4

0.11

MutPred

0.17

Gain of glycosylation at A65 (P = 0.0043);Gain of glycosylation at A65 (P = 0.0043);Gain of glycosylation at A65 (P = 0.0043);Gain of glycosylation at A65 (P = 0.0043);Gain of glycosylation at A65 (P = 0.0043);

MVP

0.22

MPC

0.051

ClinPred

0.027

GERP RS

1.7

Varity_R

0.028

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.

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