rs863224957

Positions:

chr15-42401751-C-T

Variant summary

Our verdict is Pathogenic. Variant got 16 ACMG points: 16P and 0B. PM1PM5PP3_StrongPP5_Very_Strong

The NM_000070.3(CAPN3):c.1465C>T(p.Arg489Trp) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000359 in 1,613,928 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a pathogenic outcome for this variant. Variant has been reported in ClinVar as Pathogenic (★★). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. R489Q) has been classified as Pathogenic.

Frequency

Genomes: 𝑓 0.0000066 ( 0 hom., cov: 32)

Exomes 𝑓: 0.000039 ( 0 hom. )

Consequence

CAPN3
NM_000070.3 missense

Scores

Clinical Significance

Pathogenic criteria provided, multiple submitters, no conflicts P:8

Conservation

PhyloP100: 1.41

Variant links:

Genes affected

CAPN3 (HGNC:1480): (calpain 3) Calpain, a heterodimer consisting of a large and a small subunit, is a major intracellular protease, although its function has not been well established. This gene encodes a muscle-specific member of the calpain large subunit family that specifically binds to titin. Mutations in this gene are associated with limb-girdle muscular dystrophies type 2A. Alternate promoters and alternative splicing result in multiple transcript variants encoding different isoforms and some variants are ubiquitously expressed. [provided by RefSeq, Jul 2008]

CAPN3 links:

ENSG00000258461 (HGNC:):

ENSG00000258461 links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Pathogenic. Variant got 16 ACMG points.

PM1

In a region_of_interest Domain III (size 168) in uniprot entity CAN3_HUMAN there are 132 pathogenic changes around while only 0 benign (100%) in NM_000070.3

PM5

Other missense variant is known to change same aminoacid residue: Variant chr15-42401752-G-A is described in Lovd as [Pathogenic].

PP3

MetaRNN computational evidence supports a deleterious effect, 0.978

PP5

Variant 15-42401751-C-T is Pathogenic according to our data. Variant chr15-42401751-C-T is described in ClinVar as [Pathogenic]. Clinvar id is 217150.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars. Variant chr15-42401751-C-T is described in Lovd as [Pathogenic]. Variant chr15-42401751-C-T is described in Lovd as [Pathogenic].

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
CAPN3	NM_000070.3 linkuse as main transcript	c.1465C>T	p.Arg489Trp	missense_variant	11/24	ENST00000397163.8	NP_000061.1	P20807-1
CAPN3	NM_024344.2 linkuse as main transcript	c.1465C>T	p.Arg489Trp	missense_variant	11/23		NP_077320.1	P20807-3
CAPN3	NM_173087.2 linkuse as main transcript	c.1321C>T	p.Arg441Trp	missense_variant	10/21		NP_775110.1	P20807-2

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	UniProt
CAPN3	ENST00000397163.8 linkuse as main transcript	c.1465C>T	p.Arg489Trp	missense_variant	11/24	1	NM_000070.3	ENSP00000380349.3	P20807-1
ENSG00000258461	ENST00000495723.1 linkuse as main transcript	n.*1261C>T		non_coding_transcript_exon_variant	15/26	2		ENSP00000492063.1	A0A1W2PQD3
ENSG00000258461	ENST00000495723.1 linkuse as main transcript	n.*1261C>T		3_prime_UTR_variant	15/26	2		ENSP00000492063.1	A0A1W2PQD3

Frequencies

GnomAD3 genomes

AF:

0.00000657

AC:

AN:

152092

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:

0.0000147

Gnomad OTH

AF:

0.00

GnomAD3 exomes

AF:

0.0000159

AC:

AN:

251280

Hom.:

AF XY:

0.0000295

AC XY:

AN XY:

135808

show subpopulations

Gnomad AFR exome

AF:

0.0000615

Gnomad AMR exome

AF:

0.00

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00

Gnomad SAS exome

AF:

0.0000327

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.00000880

Gnomad OTH exome

AF:

0.000163

GnomAD4 exome

AF:

0.0000390

AC:

AN:

1461836

Hom.:

Cov.:

AF XY:

0.0000371

AC XY:

AN XY:

727220

show subpopulations

Gnomad4 AFR exome

AF:

0.0000299

Gnomad4 AMR exome

AF:

0.00

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.0000504

Gnomad4 SAS exome

AF:

0.0000116

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.0000450

Gnomad4 OTH exome

AF:

0.0000497

GnomAD4 genome

AF:

0.00000657

AC:

AN:

152092

Hom.:

Cov.:

AF XY:

0.0000135

AC XY:

AN XY:

74284

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:

0.0000147

Gnomad4 OTH

AF:

0.00

Alfa

AF:

0.0000508

Hom.:

Bravo

AF:

0.00000756

EpiCase

AF:

0.000109

EpiControl

AF:

0.00

ClinVar

Significance: Pathogenic

Submissions summary: Pathogenic:8

Revision: criteria provided, multiple submitters, no conflicts

LINK: link

Submissions by phenotype

Autosomal recessive limb-girdle muscular dystrophy type 2A

Pathogenic:3

Pathogenic, no assertion criteria provided	clinical testing	Counsyl	Feb 09, 2017	- -
Pathogenic, criteria provided, single submitter	clinical testing	Labcorp Genetics (formerly Invitae), Labcorp	Jan 24, 2024	This sequence change replaces arginine, which is basic and polar, with tryptophan, which is neutral and slightly polar, at codon 489 of the CAPN3 protein (p.Arg489Trp). This variant is present in population databases (no rsID available, gnomAD 0.003%). This missense change has been observed in individual(s) with autosomal recessive limb-girdle muscular dystrophy (PMID: 9762961, 16141003, 18055493, 25135358, 27708273; Invitae). In at least one individual the data is consistent with being in trans (on the opposite chromosome) from a pathogenic variant. It has also been observed to segregate with disease in related individuals. ClinVar contains an entry for this variant (Variation ID: 217150). 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 CAPN3 protein function with a negative predictive value of 80%. For these reasons, this variant has been classified as Pathogenic. -
Pathogenic, criteria provided, single submitter	clinical testing	Intergen, Intergen Genetics and Rare Diseases Diagnosis Center	Aug 31, 2023	- -

not provided

Pathogenic:3

Pathogenic, criteria provided, single submitter	clinical testing	Eurofins Ntd Llc (ga)	Nov 23, 2016	- -
Pathogenic, criteria provided, single submitter	clinical testing	GeneDx	Mar 26, 2024	Published functional studies demonstrate that this variant leads to absent calpain3 expression (PMID: 15733273); In silico analysis supports that this missense variant has a deleterious effect on protein structure/function; This variant is associated with the following publications: (PMID: 24803842, 18055493, 27055500, 25079074, 9762961, 27066573, 25135358, 22505582, 16141003, 10330340, 19556129, 17236769, 15757244, 15221789, 18563459, 27708273, 31589614, 15733273, 37526466) -
Pathogenic, criteria provided, single submitter	clinical testing	Athena Diagnostics	Sep 19, 2016	- -

Muscular dystrophy, limb-girdle, autosomal dominant 4

Pathogenic:1

Pathogenic, criteria provided, single submitter

clinical testing

Baylor Genetics

Mar 12, 2024

- -

Autosomal recessive limb-girdle muscular dystrophy type 2A;C4748295:Muscular dystrophy, limb-girdle, autosomal dominant 4

Pathogenic:1

Pathogenic, criteria provided, single submitter

clinical testing

Fulgent Genetics, Fulgent Genetics

Nov 19, 2021

- -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Pathogenic

0.89

BayesDel_addAF

Pathogenic

0.31

BayesDel_noAF

Pathogenic

0.31

CADD

Pathogenic

DANN

Uncertain

1.0

DEOGEN2

Uncertain

0.66

D;.;.;D

Eigen

Benign

0.085

Eigen_PC

Benign

-0.045

FATHMM_MKL

Uncertain

0.77

LIST_S2

Uncertain

0.91

D;D;D;D

M_CAP

Pathogenic

0.47

MetaRNN

Pathogenic

0.98

D;D;D;D

MetaSVM

Uncertain

0.55

MutationAssessor

Uncertain

2.6

.;M;.;M

PrimateAI

Pathogenic

0.87

PROVEAN

Pathogenic

-7.5

.;D;D;D

REVEL

Pathogenic

0.75

Sift

Benign

0.12

.;T;T;T

Sift4G

Benign

0.077

T;T;T;T

Polyphen

1.0

.;D;D;D

Vest4

0.98

MutPred

0.89

.;Loss of disorder (P = 0.02);.;Loss of disorder (P = 0.02);

MVP

0.92

MPC

0.64

ClinPred

0.98

GERP RS

-0.18

RBP_binding_hub_radar

0.0

RBP_regulation_power_radar

1.7

Varity_R

0.73

gMVP

0.82

Splicing

Name

Calibrated prediction

Score

Prediction

SpliceAI score (max)

0.010

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