rs200261147

chr2-201266645-G-Achr2-201266645-G-C

Variant summary

Our verdict is Likely benign. Variant got -3 ACMG points: 2P and 5B. PM2BP4_StrongBS1_Supporting

The NM_001372051.1(CASP8):c.159G>A(p.Met53Ile) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000384 in 1,614,062 control chromosomes in the GnomAD database, including 1 homozygotes. In-silico tool predicts a benign outcome for this variant. 14/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★★). Another nucleotide change resulting in same amino acid change has been previously reported as Uncertain significancein ClinVar.

Frequency

Genomes: 𝑓 0.000053 ( 1 hom., cov: 32)

Exomes 𝑓: 0.000037 ( 0 hom. )

Consequence

CASP8
NM_001372051.1 missense

Scores

Clinical Significance

Uncertain significance criteria provided, multiple submitters, no conflicts U:3

Conservation

PhyloP100: 2.82

Variant links:

Genes affected

CASP8 (HGNC:1509): (caspase 8) This gene encodes a member of the cysteine-aspartic acid protease (caspase) family. Sequential activation of caspases plays a central role in the execution-phase of cell apoptosis. Caspases exist as inactive proenzymes composed of a prodomain, a large protease subunit, and a small protease subunit. Activation of caspases requires proteolytic processing at conserved internal aspartic residues to generate a heterodimeric enzyme consisting of the large and small subunits. This protein is involved in the programmed cell death induced by Fas and various apoptotic stimuli. The N-terminal FADD-like death effector domain of this protein suggests that it may interact with Fas-interacting protein FADD. This protein was detected in the insoluble fraction of the affected brain region from Huntington disease patients but not in those from normal controls, which implicated the role in neurodegenerative diseases. Many alternatively spliced transcript variants encoding different isoforms have been described, although not all variants have had their full-length sequences determined. [provided by RefSeq, Jul 2008]

CASP8 links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Likely_benign. Variant got -3 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

BP4

Computational evidence support a benign effect (MetaRNN=0.06725982).

BS1

Variant frequency is greater than expected in population amr. gnomad4_exome allele frequency = 0.0000369 (54/1461884) while in subpopulation AMR AF= 0.00116 (52/44724). AF 95% confidence interval is 0.00091. There are 0 homozygotes in gnomad4_exome. There are 17 alleles in male gnomad4_exome subpopulation. Median coverage is 32. This position pass quality control queck. Existence of Clinvar submissions makes me limit the strength of this signal to Supporting

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	UniProt
CASP8	NM_001372051.1 linkuse as main transcript	c.159G>A	p.Met53Ile	missense_variant	2/9	ENST00000673742.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
CASP8	ENST00000673742.1 linkuse as main transcript	c.159G>A	p.Met53Ile	missense_variant	2/9		NM_001372051.1	P1	Q14790-1

Frequencies

GnomAD3 genomes

AF:

0.0000526

AC:

AN:

152178

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.00

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.000523

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:

0.00

Gnomad OTH

AF:

0.00

GnomAD3 exomes

AF:

0.000147

AC:

AN:

251366

Hom.:

AF XY:

0.0000810

AC XY:

AN XY:

135844

show subpopulations

Gnomad AFR exome

AF:

0.0000615

Gnomad AMR exome

AF:

0.00104

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:

0.00

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.0000369

AC:

AN:

1461884

Hom.:

Cov.:

AF XY:

0.0000234

AC XY:

AN XY:

727242

show subpopulations

Gnomad4 AFR exome

AF:

0.00

Gnomad4 AMR exome

AF:

0.00116

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.00

Gnomad4 SAS exome

AF:

0.0000116

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

8.99e-7

Gnomad4 OTH exome

AF:

0.00

GnomAD4 genome

AF:

0.0000526

AC:

AN:

152178

Hom.:

Cov.:

AF XY:

0.0000538

AC XY:

AN XY:

74352

show subpopulations

Gnomad4 AFR

AF:

0.00

Gnomad4 AMR

AF:

0.000523

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.00

Gnomad4 SAS

AF:

0.00

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.00

Gnomad4 OTH

AF:

0.00

Bravo

AF:

0.000102

ExAC

AF:

0.0000906

AC:

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:3

Revision: criteria provided, multiple submitters, no conflicts

LINK: link

Submissions by phenotype

Autoimmune lymphoproliferative syndrome type 2B

Uncertain:2

Uncertain significance, criteria provided, single submitter	clinical testing	Center for Genomics, Ann and Robert H. Lurie Children's Hospital of Chicago	Nov 09, 2018	CASP8 NM_001228.4 exon 3 p.Met53Ile (c.159G>A): This variant has not been reported in the literature and is present in 0.1% (36/34588) of Latino alleles in the Genome Aggregation Database (http://gnomad.broadinstitute.org/variant/2-202131368-G-A), including 1 homozygote. This variant is present in ClinVar (Variation ID:533728). Evolutionary conservation and computational predictive tools suggest that this variant may not impact the protein. In summary, data on this variant is insufficient for disease classification. Therefore, the clinical significance of this variant is uncertain. -
Uncertain significance, criteria provided, single submitter	clinical testing	Invitae	Oct 03, 2022	This sequence change replaces methionine, which is neutral and non-polar, with isoleucine, which is neutral and non-polar, at codon 53 of the CASP8 protein (p.Met53Ile). This variant is present in population databases (rs200261147, gnomAD 0.1%). This variant has not been reported in the literature in individuals affected with CASP8-related conditions. ClinVar contains an entry for this variant (Variation ID: 625904). Advanced modeling of protein sequence and biophysical properties (such as structural, functional, and spatial information, amino acid conservation, physicochemical variation, residue mobility, and thermodynamic stability) performed at Invitae indicates that this missense variant is not expected to disrupt CASP8 protein function. In summary, the available evidence is currently insufficient to determine the role of this variant in disease. Therefore, it has been classified as a Variant of Uncertain Significance. -

Lung cancer;C0346153:Familial cancer of breast;C1846545:Autoimmune lymphoproliferative syndrome type 2B;C2239176:Hepatocellular carcinoma

Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

Center for Genomics, Ann and Robert H. Lurie Children's Hospital of Chicago

Mar 30, 2021

CASP8 NM_001228.4 exon 3 p.Met53Ile (c.159G>A): This variant has not been reported in the literature and is present in 0.1% (36/34588) of Latino alleles in the Genome Aggregation Database (http://gnomad.broadinstitute.org/variant/2-202131368-G-A), including 1 homozygote. This variant is present in ClinVar (Variation ID:533728). Evolutionary conservation and computational predictive tools suggest that this variant may not impact the protein. In summary, data on this variant is insufficient for disease classification. Therefore, the clinical significance of this variant is uncertain. -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.32

BayesDel_addAF

Benign

-0.27

BayesDel_noAF

Benign

-0.21

Cadd

Benign

Dann

Uncertain

1.0

Eigen

Benign

0.035

Eigen_PC

Benign

0.15

FATHMM_MKL

Uncertain

0.91

LIST_S2

Benign

0.76

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

M_CAP

Benign

0.055

MetaRNN

Benign

0.067

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

MetaSVM

Benign

-0.36

MutationAssessor

Benign

1.7

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

MutationTaster

Benign

0.80

D;D;D;D;D;D;D;N

PrimateAI

Benign

0.34

PROVEAN

Benign

-1.5

N;N;N;N;N;N;N;N;N;N;N

REVEL

Uncertain

0.33

Sift

Benign

1.0

T;D;D;D;T;D;D;D;D;D;T

Sift4G

Uncertain

0.054

T;D;D;D;D;D;T;D;D;D;D

Polyphen

0.49

P;B;B;.;P;.;P;.;B;B;.

Vest4

0.24

MutPred

0.48

Loss of solvent accessibility (P = 0.0442);Loss of solvent accessibility (P = 0.0442);Loss of solvent accessibility (P = 0.0442);Loss of solvent accessibility (P = 0.0442);Loss of solvent accessibility (P = 0.0442);Loss of solvent accessibility (P = 0.0442);.;Loss of solvent accessibility (P = 0.0442);Loss of solvent accessibility (P = 0.0442);Loss of solvent accessibility (P = 0.0442);Loss of solvent accessibility (P = 0.0442);

MVP

0.91

MPC

0.52

ClinPred

0.10

GERP RS

4.6

Varity_R

0.56

gMVP

0.14

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