Genetic Variant AIFM3:p.Arg123Cys (chr22-20974074-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_001386814.1(AIFM3):c.367C>T(p.Arg123Cys) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000298 in 1,609,208 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 (★). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. R123H) has been classified as Uncertain significance.

Frequency

Genomes: 𝑓 0.000026 ( 0 hom., cov: 33)

Exomes 𝑓: 0.000030 ( 0 hom. )

Consequence

AIFM3
NM_001386814.1 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 3.18

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 1 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

BP4

Computational evidence support a benign effect (MetaRNN=0.26423502).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
AIFM3	NM_001386814.1 link	c.367C>T	p.Arg123Cys	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.367C>T	p.Arg123Cys	missense_variant	Exon 5 of 21	1	NM_001386814.1	ENSP00000390798.2		Q96NN9-1

Frequencies

GnomAD3 genomes

AF:

0.0000263

AC:

AN:

152188

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.00

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:

0.0000588

Gnomad OTH

AF:

0.00

GnomAD3 exomes

AF:

0.0000372

AC:

AN:

242138

Hom.:

AF XY:

0.0000152

AC XY:

AN XY:

131532

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.0000883

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.0000554

Gnomad SAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.0000457

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.0000302

AC:

AN:

1456902

Hom.:

Cov.:

AF XY:

0.0000248

AC XY:

AN XY:

724406

show subpopulations

Gnomad4 AFR exome

AF:

0.0000598

Gnomad4 AMR exome

AF:

0.0000676

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.0000758

Gnomad4 SAS exome

AF:

0.00

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.0000324

Gnomad4 OTH exome

AF:

0.00

GnomAD4 genome

AF:

0.0000263

AC:

AN:

152306

Hom.:

Cov.:

AF XY:

0.0000134

AC XY:

AN XY:

74472

show subpopulations

Gnomad4 AFR

AF:

0.00

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:

0.0000588

Gnomad4 OTH

AF:

0.00

Alfa

AF:

0.000116

Hom.:

Bravo

AF:

0.0000529

ExAC

AF:

0.0000165

AC:

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

not specified

Uncertain:1

Jun 02, 2023

Ambry Genetics

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: clinical testing

The c.367C>T (p.R123C) 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 367, causing the arginine (R) at amino acid position 123 to be replaced by a cysteine (C). 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

0.15

BayesDel_addAF

Benign

-0.20

BayesDel_noAF

Benign

-0.32

CADD

Pathogenic

DANN

Pathogenic

1.0

DEOGEN2

Benign

0.22

T;.;.;.;.;T

Eigen

Uncertain

0.33

Eigen_PC

Uncertain

0.35

FATHMM_MKL

Uncertain

0.90

LIST_S2

Pathogenic

0.99

.;D;D;D;D;D

M_CAP

Benign

0.045

MetaRNN

Benign

0.26

T;T;T;T;T;T

MetaSVM

Benign

-0.90

MutationAssessor

Benign

1.3

L;L;.;.;.;L

PROVEAN

Uncertain

-2.6

D;D;D;N;D;D

REVEL

Benign

0.21

Sift

Benign

0.034

D;D;D;D;D;D

Sift4G

Uncertain

0.049

D;D;D;D;D;D

Polyphen

0.98

D;D;.;.;D;D

Vest4

0.52

MVP

0.73

MPC

1.1

ClinPred

0.42

GERP RS

4.8

Varity_R

0.16

gMVP

0.45

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