Genetic Variant NM_001386814.1:c.373C>T (chr22-20974080-C-T) – ACMG Classification: Uncertain_significance (2 pts)

Variant summary

Our verdict is Uncertain significance. Variant got 2 ACMG points: 2P and 0B. PM2

The NM_001386814.1(AIFM3):c.373C>T(p.Arg125Trp) variant causes a missense change. The variant allele was found at a frequency of 0.00000412 in 1,458,064 control chromosomes in the GnomAD database, with no homozygous occurrence. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: not found (cov: 33)

Exomes 𝑓: 0.0000041 ( 0 hom. )

Consequence

AIFM3
NM_001386814.1 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 3.60

Variant links:

Genes affected

AIFM3 (HGNC:26398): (apoptosis inducing factor mitochondria associated 3) Predicted to enable several functions, including 2 iron, 2 sulfur cluster binding activity; flavin adenine dinucleotide binding activity; and metal ion binding activity. Involved in execution phase of apoptosis. Located in cytosol; endoplasmic reticulum; and mitochondrial inner membrane. [provided by Alliance of Genome Resources, Apr 2022]

AIFM3 links:

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ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 2 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
AIFM3	NM_001386814.1 link	c.373C>T	p.Arg125Trp	missense_variant	Exon 5 of 21	ENST00000440238.4	NP_001373743.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
AIFM3	ENST00000440238.4 link	c.373C>T	p.Arg125Trp	missense_variant	Exon 5 of 21	1	NM_001386814.1	ENSP00000390798.2		Q96NN9-1

Frequencies

GnomAD3 genomes

Cov.:

GnomAD3 exomes

AF:

0.00000820

AC:

AN:

244010

Hom.:

AF XY:

0.00000754

AC XY:

AN XY:

132540

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:

0.0000333

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.00000907

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.00000412

AC:

AN:

1458064

Hom.:

Cov.:

AF XY:

0.00000552

AC XY:

AN XY:

725102

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:

0.0000233

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.00000360

Gnomad4 OTH exome

AF:

0.00

GnomAD4 genome

Cov.:

Bravo

AF:

0.0000189

ExAC

AF:

0.0000247

AC:

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

not specified

Uncertain:1

Dec 26, 2023

Ambry Genetics

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: clinical testing

The c.373C>T (p.R125W) alteration is located in exon 5 (coding exon 4) of the AIFM3 gene. This alteration results from a C to T substitution at nucleotide position 373, causing the arginine (R) at amino acid position 125 to be replaced by a tryptophan (W). 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

0.31

BayesDel_addAF

Benign

-0.055

BayesDel_noAF

Benign

-0.22

CADD

Pathogenic

DANN

Pathogenic

1.0

DEOGEN2

Benign

0.28

T;.;.;.;.;T

Eigen

Uncertain

0.55

Eigen_PC

Uncertain

0.46

FATHMM_MKL

Uncertain

0.95

LIST_S2

Pathogenic

0.99

.;D;D;D;D;D

M_CAP

Uncertain

0.16

MetaRNN

Uncertain

0.74

D;D;D;D;D;D

MetaSVM

Uncertain

-0.28

MutationAssessor

Pathogenic

3.2

M;M;.;.;.;M

PROVEAN

Pathogenic

-5.4

D;D;D;D;D;D

REVEL

Uncertain

0.34

Sift

Pathogenic

0.0

D;D;D;D;D;D

Sift4G

Pathogenic

0.0010

D;D;D;D;D;D

Polyphen

1.0

D;D;.;.;D;D

Vest4

0.63

MutPred

0.65

Loss of methylation at R123 (P = 0.032);Loss of methylation at R123 (P = 0.032);Loss of methylation at R123 (P = 0.032);Loss of methylation at R123 (P = 0.032);.;Loss of methylation at R123 (P = 0.032);

MVP

0.77

MPC

1.1

ClinPred

1.0

GERP RS

3.8

Varity_R

0.69

gMVP

0.67

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