Variant 12-98665576-A-G details in Genebe, Genetics Data Aggregator

Variant summary

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

The NM_181861.2(APAF1):c.979A>G(p.Ile327Val) variant causes a missense change. The variant allele was found at a frequency of 0.00000274 in 1,461,518 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 (★).

Frequency

Genomes: not found (cov: 31)

Exomes 𝑓: 0.0000027 ( 0 hom. )

Consequence

APAF1
NM_181861.2 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 5.02

Variant links:

Genes affected

APAF1 (HGNC:576): (apoptotic peptidase activating factor 1) This gene encodes a cytoplasmic protein that initiates apoptosis. This protein contains several copies of the WD-40 domain, a caspase recruitment domain (CARD), and an ATPase domain (NB-ARC). Upon binding cytochrome c and dATP, this protein forms an oligomeric apoptosome. The apoptosome binds and cleaves caspase 9 preproprotein, releasing its mature, activated form. Activated caspase 9 stimulates the subsequent caspase cascade that commits the cell to apoptosis. Alternative splicing results in several transcript variants encoding different isoforms. [provided by RefSeq, Jul 2008]

APAF1 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/exons	MANE	UniProt
APAF1	NM_181861.2 linkuse as main transcript	c.979A>G	p.Ile327Val	missense_variant	8/27	ENST00000551964.6

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
APAF1	ENST00000551964.6 linkuse as main transcript	c.979A>G	p.Ile327Val	missense_variant	8/27	1	NM_181861.2	P1	O14727-1

Frequencies

GnomAD3 genomes

Cov.:

GnomAD3 exomes

AF:

0.0000120

AC:

AN:

250988

Hom.:

AF XY:

0.00000737

AC XY:

AN XY:

135766

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.00

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.000163

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:

0.00000274

AC:

AN:

1461518

Hom.:

Cov.:

AF XY:

0.00000138

AC XY:

AN XY:

727076

show subpopulations

Gnomad4 AFR exome

AF:

0.00

Gnomad4 AMR exome

AF:

0.00

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.000101

Gnomad4 SAS exome

AF:

0.00

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.00

Gnomad4 OTH exome

AF:

0.00

GnomAD4 genome

Cov.:

ExAC

AF:

0.00000824

AC:

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

Sep 20, 2023

The c.979A>G (p.I327V) alteration is located in exon 8 (coding exon 7) of the APAF1 gene. This alteration results from a A to G substitution at nucleotide position 979, causing the isoleucine (I) at amino acid position 327 to be replaced by a valine (V). 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

0.086

BayesDel_addAF

Benign

-0.21

BayesDel_noAF

Benign

-0.28

Cadd

Benign

Dann

Uncertain

1.0

DEOGEN2

Benign

0.29

T;.;.;.;.;.

Eigen

Benign

-0.098

Eigen_PC

Benign

0.028

FATHMM_MKL

Pathogenic

0.98

LIST_S2

Benign

0.85

D;T;T;D;.;T

M_CAP

Benign

0.018

MetaRNN

Benign

0.31

T;T;T;T;T;T

MetaSVM

Benign

-0.70

MutationAssessor

Benign

1.5

L;L;.;.;L;.

MutationTaster

Benign

1.0

D;D;D;D;D;D;D;D;D

PrimateAI

Uncertain

0.60

PROVEAN

Benign

-0.62

N;N;N;N;N;N

REVEL

Benign

0.23

Sift

Benign

0.035

D;D;D;D;D;D

Sift4G

Benign

0.076

T;T;T;T;T;T

Polyphen

0.0070

B;B;B;P;B;.

Vest4

0.33

MutPred

0.68

Gain of catalytic residue at I327 (P = 5e-04);Gain of catalytic residue at I327 (P = 5e-04);.;.;Gain of catalytic residue at I327 (P = 5e-04);Gain of catalytic residue at I327 (P = 5e-04);

MVP

0.77

MPC

0.24

ClinPred

0.23

GERP RS

3.8

RBP_binding_hub_radar

0.0

RBP_regulation_power_radar

1.7

Varity_R

0.18

gMVP

0.42

Splicing

Name

Calibrated prediction

Score

Prediction

SpliceAI score (max)

0.23

Details are displayed if max score is > 0.2

DS_AG_spliceai

0.23

Position offset: -8

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