12-98662517-T-A

Variant summary

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

The NM_181861.2(APAF1):c.772T>A(p.Cys258Ser) variant causes a missense change. The variant allele was found at a frequency of 0.0000626 in 1,613,688 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: 𝑓 0.000066 ( 0 hom., cov: 32)

Exomes 𝑓: 0.000062 ( 0 hom. )

Consequence

APAF1
NM_181861.2 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 3.76

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:

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=0.3008504).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	UniProt
APAF1	NM_181861.2 linkuse as main transcript	c.772T>A	p.Cys258Ser	missense_variant	6/27	ENST00000551964.6

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
APAF1	ENST00000551964.6 linkuse as main transcript	c.772T>A	p.Cys258Ser	missense_variant	6/27	1	NM_181861.2	P1	O14727-1

Frequencies

GnomAD3 genomes

AF:

0.0000657

AC:

AN:

152142

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:

0.000147

Gnomad OTH

AF:

0.00

GnomAD3 exomes

AF:

0.0000597

AC:

AN:

251364

Hom.:

AF XY:

0.0000442

AC XY:

AN XY:

135852

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.0000289

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00

Gnomad SAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.000123

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.0000623

AC:

AN:

1461428

Hom.:

Cov.:

AF XY:

0.0000578

AC XY:

AN XY:

727044

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:

0.0000232

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.0000774

Gnomad4 OTH exome

AF:

0.0000497

GnomAD4 genome

AF:

0.0000657

AC:

AN:

152260

Hom.:

Cov.:

AF XY:

0.0000403

AC XY:

AN XY:

74440

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:

0.000147

Gnomad4 OTH

AF:

0.00

Alfa

AF:

0.0000901

Hom.:

ExAC

AF:

0.0000494

AC:

EpiCase

AF:

0.000109

EpiControl

AF:

0.000296

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

Mar 29, 2022

The c.772T>A (p.C258S) alteration is located in exon 6 (coding exon 5) of the APAF1 gene. This alteration results from a T to A substitution at nucleotide position 772, causing the cysteine (C) at amino acid position 258 to be replaced by a serine (S). 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

0.26

BayesDel_addAF

Benign

0.0023

BayesDel_noAF

Uncertain

0.0

Cadd

Uncertain

Dann

Uncertain

0.99

DEOGEN2

Uncertain

0.78

D;.;.;.;.;.;.;.

Eigen

Benign

0.11

Eigen_PC

Benign

0.18

FATHMM_MKL

Uncertain

0.94

LIST_S2

Uncertain

0.91

D;D;D;D;.;D;.;D

M_CAP

Benign

0.023

MetaRNN

Benign

0.30

T;T;T;T;T;T;T;T

MetaSVM

Benign

-0.54

MutationAssessor

Benign

1.2

L;L;L;.;L;.;L;.

MutationTaster

Benign

0.99

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

PrimateAI

Uncertain

0.75

PROVEAN

Pathogenic

-5.7

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

REVEL

Uncertain

0.54

Sift

Uncertain

0.020

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

Sift4G

Benign

0.19

T;T;T;T;T;T;T;T

Polyphen

0.81

P;P;P;D;P;P;P;.

Vest4

0.38

MutPred

0.67

Gain of catalytic residue at D255 (P = 0.0112);Gain of catalytic residue at D255 (P = 0.0112);Gain of catalytic residue at D255 (P = 0.0112);.;Gain of catalytic residue at D255 (P = 0.0112);.;Gain of catalytic residue at D255 (P = 0.0112);Gain of catalytic residue at D255 (P = 0.0112);

MVP

0.82

MPC

0.86

ClinPred

0.55

GERP RS

3.1

Varity_R

0.62

gMVP

0.75

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