15-42401763-C-G

Variant names:

Variant summary

Our verdict is Likely pathogenic. Variant got 9 ACMG points: 9P and 0B. PM1PM5PP3_StrongPP5

The NM_000070.3(CAPN3):c.1477C>G(p.Arg493Gly) variant causes a missense change. The variant allele was found at a frequency of 0.00000867 in 1,613,892 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 Conflicting classifications of pathogenicity (no stars). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. R493W) has been classified as Pathogenic.

Frequency

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

Exomes 𝑓: 0.0000089 ( 0 hom. )

Consequence

CAPN3
NM_000070.3 missense

Scores

Clinical Significance

Conflicting classifications of pathogenicity criteria provided, conflicting classifications P:2U:2

Conservation

PhyloP100: 4.94

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 Likely_pathogenic. Variant got 9 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 chr15-42401763-C-T is described in Lovd as [Pathogenic].

PP3

MetaRNN computational evidence supports a deleterious effect, 0.982

PP5

Variant 15-42401763-C-G is Pathogenic according to our data. Variant chr15-42401763-C-G is described in ClinVar as [Conflicting_classifications_of_pathogenicity]. Clinvar id is 286477.We mark this variant Likely_pathogenic, oryginal submissions are: {Likely_pathogenic=2, Uncertain_significance=3}. Variant chr15-42401763-C-G is described in Lovd as [Pathogenic].

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
CAPN3	NM_000070.3 link	c.1477C>G	p.Arg493Gly	missense_variant	Exon 11 of 24	ENST00000397163.8	NP_000061.1	P20807-1
CAPN3	NM_024344.2 link	c.1477C>G	p.Arg493Gly	missense_variant	Exon 11 of 23		NP_077320.1	P20807-3
CAPN3	NM_173087.2 link	c.1333C>G	p.Arg445Gly	missense_variant	Exon 10 of 21		NP_775110.1	P20807-2

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	UniProt
CAPN3	ENST00000397163.8 link	c.1477C>G	p.Arg493Gly	missense_variant	Exon 11 of 24	1	NM_000070.3	ENSP00000380349.3	P20807-1
ENSG00000258461	ENST00000495723.1 link	n.*1273C>G		non_coding_transcript_exon_variant	Exon 15 of 26	2		ENSP00000492063.1	A0A1W2PQD3
ENSG00000258461	ENST00000495723.1 link	n.*1273C>G		3_prime_UTR_variant	Exon 15 of 26	2		ENSP00000492063.1	A0A1W2PQD3

Frequencies

GnomAD3 genomes

AF:

0.00000657

AC:

AN:

152094

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:

0.00000797

AC:

AN:

251070

Hom.:

AF XY:

0.00000737

AC XY:

AN XY:

135708

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.0000579

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:

0.00000889

AC:

AN:

1461798

Hom.:

Cov.:

AF XY:

0.00000825

AC XY:

AN XY:

727194

show subpopulations

Gnomad4 AFR exome

AF:

0.00

Gnomad4 AMR exome

AF:

0.0000447

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:

0.00000899

Gnomad4 OTH exome

AF:

0.0000166

GnomAD4 genome

AF:

0.00000657

AC:

AN:

152094

Hom.:

Cov.:

AF XY:

0.00

AC XY:

AN XY:

74296

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

Bravo

AF:

0.00000756

EpiCase

AF:

0.0000545

EpiControl

AF:

0.00

ClinVar

Significance: Conflicting classifications of pathogenicity

Submissions summary: Pathogenic:2Uncertain:2

Revision: criteria provided, conflicting classifications

LINK: link

Submissions by phenotype

Muscular dystrophy, limb-girdle, autosomal dominant 4

Pathogenic:1

Feb 02, 2024

Baylor Genetics

Significance: Likely pathogenic

Review Status: criteria provided, single submitter

Collection Method: clinical testing

- -

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

Pathogenic:1

Jun 24, 2024

Fulgent Genetics, Fulgent Genetics

Significance: Likely pathogenic

Review Status: criteria provided, single submitter

Collection Method: clinical testing

- -

Autosomal recessive limb-girdle muscular dystrophy type 2A

Uncertain:1

Sep 19, 2017

Counsyl

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: clinical testing

- -

not provided

Uncertain:1

Feb 29, 2016

Eurofins Ntd Llc (ga)

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: clinical testing

- -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Pathogenic

0.93

BayesDel_addAF

Pathogenic

0.31

BayesDel_noAF

Pathogenic

0.38

CADD

Pathogenic

DANN

Uncertain

1.0

DEOGEN2

Uncertain

0.58

D;.;.;D

Eigen

Pathogenic

0.68

Eigen_PC

Uncertain

0.60

FATHMM_MKL

Uncertain

0.97

LIST_S2

Uncertain

0.90

D;D;D;D

M_CAP

Pathogenic

0.40

MetaRNN

Pathogenic

0.98

D;D;D;D

MetaSVM

Uncertain

0.78

MutationAssessor

Pathogenic

3.1

.;M;.;M

PrimateAI

Uncertain

0.78

PROVEAN

Pathogenic

-6.2

.;D;D;D

REVEL

Pathogenic

0.90

Sift

Uncertain

0.0010

.;D;D;D

Sift4G

Pathogenic

0.0010

D;D;D;D

Polyphen

1.0

.;D;D;D

Vest4

0.96

MutPred

0.92

.;Loss of MoRF binding (P = 0.0239);.;Loss of MoRF binding (P = 0.0239);

MVP

0.96

MPC

0.69

ClinPred

0.99

GERP RS

4.0

Varity_R

0.83

gMVP

0.73

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