Genetic Variant AIFM2:p.Pro323Leu (chr10-70114922-G-A) – ACMG Classification: Uncertain_significance (2 pts)

Variant summary

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

The NM_032797.6(AIFM2):c.968C>T(p.Pro323Leu) variant causes a missense, splice region change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.0000626 in 1,613,830 control chromosomes in the GnomAD database, with no homozygous occurrence. 2/3 splice prediction tools predicting alterations to normal splicing. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.000072 ( 0 hom., cov: 33)

Exomes 𝑓: 0.000062 ( 0 hom. )

Consequence

AIFM2
NM_032797.6 missense, splice_region

Scores

Splicing: ADA: 0.9993

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 8.78

Variant links:

Genes affected

AIFM2 (HGNC:21411): (apoptosis inducing factor mitochondria associated 2) This gene encodes a flavoprotein oxidoreductase that binds single stranded DNA and is thought to contribute to apoptosis in the presence of bacterial and viral DNA. The expression of this gene is also found to be induced by tumor suppressor protein p53 in colon cancer cells. [provided by RefSeq, Nov 2010]

AIFM2 links:

Genome browser will be placed here

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
AIFM2	NM_032797.6 link	c.968C>T	p.Pro323Leu	missense_variant, splice_region_variant	Exon 8 of 9	ENST00000307864.3	NP_116186.1	Q9BRQ8-1
AIFM2	NM_001198696.2 link	c.968C>T	p.Pro323Leu	missense_variant, splice_region_variant	Exon 8 of 9		NP_001185625.1	Q9BRQ8-1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	UniProt
AIFM2	ENST00000307864.3 link	c.968C>T	p.Pro323Leu	missense_variant, splice_region_variant	Exon 8 of 9	1	NM_032797.6	ENSP00000312370.1	Q9BRQ8-1
AIFM2	ENST00000373248.5 link	c.968C>T	p.Pro323Leu	missense_variant, splice_region_variant	Exon 7 of 9	1		ENSP00000362345.1	Q9BRQ8-1
AIFM2	ENST00000613322.4 link	c.968C>T	p.Pro323Leu	missense_variant, splice_region_variant	Exon 8 of 9	5		ENSP00000478931.1	Q9BRQ8-1
AIFM2	ENST00000482166.1 link	n.805C>T		non_coding_transcript_exon_variant	Exon 4 of 4	3

Frequencies

GnomAD3 genomes

AF:

0.0000723

AC:

AN:

152226

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.0000241

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:

0.000147

Gnomad OTH

AF:

0.00

GnomAD3 exomes

AF:

0.0000558

AC:

AN:

250712

Hom.:

AF XY:

0.0000811

AC XY:

AN XY:

135552

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.00

Gnomad ASJ exome

AF:

0.0000993

Gnomad EAS exome

AF:

0.000436

Gnomad SAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.0000353

Gnomad OTH exome

AF:

0.000164

GnomAD4 exome

AF:

0.0000616

AC:

AN:

1461604

Hom.:

Cov.:

AF XY:

0.0000619

AC XY:

AN XY:

727070

show subpopulations

Gnomad4 AFR exome

AF:

0.00

Gnomad4 AMR exome

AF:

0.0000224

Gnomad4 ASJ exome

AF:

0.000115

Gnomad4 EAS exome

AF:

0.000227

Gnomad4 SAS exome

AF:

0.0000116

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.0000657

Gnomad4 OTH exome

AF:

0.0000497

GnomAD4 genome

AF:

0.0000723

AC:

AN:

152226

Hom.:

Cov.:

AF XY:

0.0000269

AC XY:

AN XY:

74370

show subpopulations

Gnomad4 AFR

AF:

0.0000241

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:

0.000147

Gnomad4 OTH

AF:

0.00

Alfa

AF:

0.000107

Hom.:

Bravo

AF:

0.0000680

ESP6500AA

AF:

0.00

AC:

ESP6500EA

AF:

0.000233

AC:

ExAC

AF:

0.0000412

AC:

EpiCase

AF:

0.00

EpiControl

AF:

0.0000593

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

not specified

Uncertain:1

Dec 16, 2023

Ambry Genetics

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: clinical testing

The c.968C>T (p.P323L) alteration is located in exon 8 (coding exon 7) of the AIFM2 gene. This alteration results from a C to T substitution at nucleotide position 968, causing the proline (P) at amino acid position 323 to be replaced by a leucine (L). 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

0.32

BayesDel_addAF

Benign

-0.23

BayesDel_noAF

Benign

-0.25

CADD

Pathogenic

DANN

Uncertain

1.0

DEOGEN2

Uncertain

0.57

D;D;D

Eigen

Uncertain

0.26

Eigen_PC

Uncertain

0.34

FATHMM_MKL

Pathogenic

0.99

LIST_S2

Uncertain

0.89

.;D;.

M_CAP

Benign

0.059

MetaRNN

Uncertain

0.54

D;D;D

MetaSVM

Benign

-1.0

MutationAssessor

Pathogenic

3.0

M;M;M

PrimateAI

Uncertain

0.56

PROVEAN

Pathogenic

-4.8

D;.;D

REVEL

Uncertain

0.30

Sift

Benign

0.12

T;.;T

Sift4G

Benign

0.083

T;T;T

Polyphen

0.69

P;P;P

Vest4

0.57

MVP

0.68

MPC

0.15

ClinPred

0.53

GERP RS

5.8

RBP_binding_hub_radar

0.0

RBP_regulation_power_radar

1.7

Varity_R

0.21

gMVP

0.84

Splicing

Name

Calibrated prediction

Score

Prediction

dbscSNV1_ADA

Pathogenic

1.0

dbscSNV1_RF

Pathogenic

0.75

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