Variant 1-223620246-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_001143962.2(CAPN8):c.920T>C(p.Ile307Thr) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.0000129 in 1,551,510 control chromosomes in the GnomAD database, with no homozygous occurrence. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.000026 ( 0 hom., cov: 32)

Exomes 𝑓: 0.000011 ( 0 hom. )

Consequence

CAPN8
NM_001143962.2 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 7.28

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 2 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
CAPN8	NM_001143962.2 linkuse as main transcript	c.920T>C	p.Ile307Thr	missense_variant	8/21	ENST00000366872.10	NP_001137434.1	A6NHC0

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	UniProt
CAPN8	ENST00000366872.10 linkuse as main transcript	c.920T>C	p.Ile307Thr	missense_variant	8/21	1	NM_001143962.2	ENSP00000355837.6	A6NHC0
CAPN8	ENST00000366873.6 linkuse as main transcript	c.920T>C	p.Ile307Thr	missense_variant	8/10	5		ENSP00000355838.2	B1B154
CAPN8	ENST00000467384.6 linkuse as main transcript	n.*717T>C		non_coding_transcript_exon_variant	8/8	5		ENSP00000434013.1	H0YDN4
CAPN8	ENST00000467384.6 linkuse as main transcript	n.*717T>C		3_prime_UTR_variant	8/8	5		ENSP00000434013.1	H0YDN4

Frequencies

GnomAD3 genomes

AF:

0.0000263

AC:

AN:

152124

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:

0.000578

Gnomad SAS

AF:

0.000208

Gnomad FIN

AF:

0.00

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.00

Gnomad OTH

AF:

0.00

GnomAD3 exomes

AF:

0.0000575

AC:

AN:

156544

Hom.:

AF XY:

0.0000723

AC XY:

AN XY:

82960

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.00

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.000550

Gnomad SAS exome

AF:

0.000132

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.00

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.0000114

AC:

AN:

1399386

Hom.:

Cov.:

AF XY:

0.0000145

AC XY:

AN XY:

690206

show subpopulations

Gnomad4 AFR exome

AF:

0.00

Gnomad4 AMR exome

AF:

0.0000280

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.000168

Gnomad4 SAS exome

AF:

0.0000631

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

9.27e-7

Gnomad4 OTH exome

AF:

0.0000517

GnomAD4 genome

AF:

0.0000263

AC:

AN:

152124

Hom.:

Cov.:

AF XY:

0.0000404

AC XY:

AN XY:

74304

show subpopulations

Gnomad4 AFR

AF:

0.00

Gnomad4 AMR

AF:

0.00

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.000578

Gnomad4 SAS

AF:

0.000208

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.00

Gnomad4 OTH

AF:

0.00

Bravo

AF:

0.0000151

ExAC

AF:

0.0000403

AC:

Asia WGS

AF:

0.000289

AC:

AN:

3478

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

Apr 24, 2024

The c.920T>C (p.I307T) 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 920, causing the isoleucine (I) at amino acid position 307 to be replaced by a threonine (T). 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

0.13

BayesDel_addAF

Benign

-0.12

BayesDel_noAF

Uncertain

-0.070

CADD

Benign

DANN

Uncertain

0.99

DEOGEN2

Uncertain

0.46

T;T;T

Eigen

Uncertain

0.27

Eigen_PC

Benign

0.13

FATHMM_MKL

Pathogenic

0.99

LIST_S2

Benign

0.55

T;T;T

M_CAP

Uncertain

0.20

MetaRNN

Uncertain

0.68

D;D;D

MetaSVM

Uncertain

0.54

MutationAssessor

Uncertain

2.2

M;.;.

PrimateAI

Benign

0.45

PROVEAN

Uncertain

-3.8

.;D;D

REVEL

Uncertain

0.59

Sift

Pathogenic

0.0

.;D;D

Sift4G

Uncertain

0.0020

D;D;D

Polyphen

0.91

P;.;.

Vest4

0.39

MutPred

0.72

Loss of stability (P = 0.0188);Loss of stability (P = 0.0188);Loss of stability (P = 0.0188);

MVP

0.59

ClinPred

0.41

GERP RS

4.0

Varity_R

0.24

gMVP

0.55

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