Variant 1-223619299-A-G details in Genebe, Genetics Data Aggregator

Variant summary

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

The NM_001143962.2(CAPN8):c.1129T>C(p.Tyr377His) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000058 in 1,551,558 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 14/20 in silico tools predict a benign outcome for this variant. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar.

Frequency

Genomes: 𝑓 0.000039 ( 0 hom., cov: 33)

Exomes 𝑓: 0.0000021 ( 0 hom. )

Consequence

CAPN8
NM_001143962.2 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 1.43

Variant links:

Genes affected

CAPN8 (HGNC:1485): (calpain 8) Predicted to enable calcium-dependent cysteine-type endopeptidase activity and identical protein binding activity. Predicted to be involved in proteolysis. Predicted to act upstream of or within calcium-dependent self proteolysis. Predicted to be located in Golgi apparatus. Predicted to be active in cytoplasm. [provided by Alliance of Genome Resources, Apr 2022]

CAPN8 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=0.32651517).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
CAPN8	NM_001143962.2 linkuse as main transcript	c.1129T>C	p.Tyr377His	missense_variant	9/21	ENST00000366872.10	NP_001137434.1	A6NHC0

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris	UniProt
CAPN8	ENST00000366872.10 linkuse as main transcript	c.1129T>C	p.Tyr377His	missense_variant	9/21	1	NM_001143962.2	ENSP00000355837.6		A6NHC0
CAPN8	ENST00000366873.6 linkuse as main transcript	c.1129T>C	p.Tyr377His	missense_variant	9/10	5		ENSP00000355838.2		B1B154

Frequencies

GnomAD3 genomes

AF:

0.0000394

AC:

AN:

152182

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.000145

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:

0.00

Gnomad OTH

AF:

0.00

GnomAD4 exome

AF:

0.00000214

AC:

AN:

1399376

Hom.:

Cov.:

AF XY:

0.00

AC XY:

AN XY:

690198

show subpopulations

Gnomad4 AFR exome

AF:

0.0000949

Gnomad4 AMR exome

AF:

0.00

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.00

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

AF:

0.0000394

AC:

AN:

152182

Hom.:

Cov.:

AF XY:

0.0000269

AC XY:

AN XY:

74352

show subpopulations

Gnomad4 AFR

AF:

0.000145

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:

0.00

Gnomad4 OTH

AF:

0.00

Alfa

AF:

0.0000658

Hom.:

Bravo

AF:

0.0000453

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

Oct 22, 2024

The c.1129T>C (p.Y377H) alteration is located in exon 1 (coding exon 1) of the CAPN8 gene. This alteration results from a T to C substitution at nucleotide position 1129, causing the tyrosine (Y) at amino acid position 377 to be replaced by a histidine (H). 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

0.14

BayesDel_addAF

Benign

-0.049

BayesDel_noAF

Benign

-0.31

CADD

Benign

DANN

Uncertain

0.99

DEOGEN2

Uncertain

0.49

T;T;T

Eigen

Benign

0.14

Eigen_PC

Benign

0.077

FATHMM_MKL

Uncertain

0.87

LIST_S2

Benign

0.83

T;T;T

M_CAP

Benign

0.067

MetaRNN

Benign

0.33

T;T;T

MetaSVM

Uncertain

-0.091

MutationAssessor

Benign

1.7

L;.;.

PrimateAI

Benign

0.35

PROVEAN

Benign

-2.2

.;N;N

REVEL

Uncertain

0.44

Sift

Benign

0.23

.;T;T

Sift4G

Benign

0.32

T;T;T

Polyphen

1.0

D;.;.

Vest4

0.21

MVP

0.48

MPC

0.0018

ClinPred

0.81

GERP RS

0.76

Varity_R

0.059

gMVP

0.53

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