Genetic Variant NM_006351.4:c.1162G>A (chr19-7927734-C-T) – ACMG Classification: Uncertain_significance (1 pts)

Variant summary

Our verdict is Uncertain significance. Variant got 1 ACMG points: 2P and 1B. PM2BP4

The NM_006351.4(TIMM44):c.1162G>A(p.Val388Met) variant causes a missense change. The variant allele was found at a frequency of 0.000357 in 1,612,748 control chromosomes in the GnomAD database, including 1 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.00033 ( 0 hom., cov: 32)

Exomes 𝑓: 0.00036 ( 1 hom. )

Consequence

TIMM44
NM_006351.4 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 5.52

Variant links:

Genes affected

TIMM44 (HGNC:17316): (translocase of inner mitochondrial membrane 44) This gene encodes a peripheral membrane protein associated with the mitochondrial inner membrane translocase, which functions in the import of proteins across the mitochondrial inner membrane and into the mitochondrial matrix. The encoded protein mediates binding of mitochondrial heat shock protein 70 to the translocase of inner mitochondrial membrane 23 (TIM23) complex. Expression of this gene is upregulated in kidney in a mouse model of diabetes. A mutation in this gene is associated with familial oncocytic thyroid carcinoma. [provided by RefSeq, Jul 2016]

TIMM44 links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 1 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

BP4

Computational evidence support a benign effect (MetaRNN=0.31897736).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
TIMM44	NM_006351.4 link	c.1162G>A	p.Val388Met	missense_variant	Exon 12 of 13	ENST00000270538.8	NP_006342.2	O43615

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
TIMM44	ENST00000270538.8 link	c.1162G>A	p.Val388Met	missense_variant	Exon 12 of 13	1	NM_006351.4	ENSP00000270538.2		O43615

Frequencies

GnomAD3 genomes

AF:

0.000328

AC:

AN:

152220

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.0000241

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:

0.000706

Gnomad OTH

AF:

0.00

GnomAD3 exomes

AF:

0.000401

AC:

100

AN:

249542

Hom.:

AF XY:

0.000481

AC XY:

AN XY:

135064

show subpopulations

Gnomad AFR exome

AF:

0.000123

Gnomad AMR exome

AF:

0.00

Gnomad ASJ exome

AF:

0.0000998

Gnomad EAS exome

AF:

0.00

Gnomad SAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.000815

Gnomad OTH exome

AF:

0.000818

GnomAD4 exome

AF:

0.000359

AC:

525

AN:

1460410

Hom.:

Cov.:

AF XY:

0.000366

AC XY:

266

AN XY:

726566

show subpopulations

Gnomad4 AFR exome

AF:

0.0000597

Gnomad4 AMR exome

AF:

0.0000447

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.00

Gnomad4 SAS exome

AF:

0.00

Gnomad4 FIN exome

AF:

0.000115

Gnomad4 NFE exome

AF:

0.000448

Gnomad4 OTH exome

AF:

0.000282

GnomAD4 genome

AF:

0.000328

AC:

AN:

152338

Hom.:

Cov.:

AF XY:

0.000282

AC XY:

AN XY:

74496

show subpopulations

Gnomad4 AFR

AF:

0.0000241

Gnomad4 AMR

AF:

0.0000653

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.00

Gnomad4 SAS

AF:

0.00

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.000706

Gnomad4 OTH

AF:

0.00

Alfa

AF:

0.000420

Hom.:

Bravo

AF:

0.000298

ESP6500AA

AF:

0.00

AC:

ESP6500EA

AF:

0.000581

AC:

ExAC

AF:

0.000618

AC:

EpiCase

AF:

0.000109

EpiControl

AF:

0.000178

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

not specified

Uncertain:1

Mar 12, 2024

Ambry Genetics

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: clinical testing

The c.1162G>A (p.V388M) alteration is located in exon 12 (coding exon 12) of the TIMM44 gene. This alteration results from a G to A substitution at nucleotide position 1162, causing the valine (V) at amino acid position 388 to be replaced by a methionine (M). 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

Pathogenic

0.89

BayesDel_addAF

Benign

-0.0086

BayesDel_noAF

Uncertain

0.13

CADD

Pathogenic

DANN

Uncertain

1.0

DEOGEN2

Benign

0.29

T;T

Eigen

Uncertain

0.58

Eigen_PC

Uncertain

0.46

FATHMM_MKL

Uncertain

0.93

LIST_S2

Uncertain

0.97

D;D

M_CAP

Uncertain

0.18

MetaRNN

Benign

0.32

T;T

MetaSVM

Uncertain

0.32

MutationAssessor

Pathogenic

3.2

.;M

PrimateAI

Uncertain

0.65

PROVEAN

Uncertain

-2.8

.;D

REVEL

Pathogenic

0.66

Sift

Uncertain

0.0010

.;D

Sift4G

Uncertain

0.0030

D;D

Polyphen

1.0

.;D

Vest4

0.71

MVP

0.73

MPC

1.0

ClinPred

0.34

GERP RS

3.9

RBP_binding_hub_radar

0.0

RBP_regulation_power_radar

1.1

Varity_R

0.75

gMVP

0.67

Splicing

Name

Calibrated prediction

Score

Prediction

SpliceAI score (max)

0.070

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