15-42359808-G-T
Variant summary
Our verdict is Pathogenic. Variant got 14 ACMG points: 14P and 0B. PVS1PS1_ModeratePM2PP5_Moderate
The NM_000070.3(CAPN3):c.3G>T(p.Met1?) variant causes a start lost change. The variant was absent in control chromosomes in GnomAD project. In-silico tool predicts a pathogenic outcome for this variant. Variant has been reported in ClinVar as Pathogenic (★).
Frequency
Genomes: not found (cov: 32)
Consequence
CAPN3
NM_000070.3 start_lost
NM_000070.3 start_lost
Scores
7
6
3
Clinical Significance
Conservation
PhyloP100: 4.34
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]
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ACMG classification
Classification made for transcript
Verdict is Pathogenic. Variant got 14 ACMG points.
PVS1
?
Start lost variant, no new inframe start found.
PS1
?
Another start lost variant in NM_000070.3 (CAPN3) was described as [Likely_pathogenic] in ClinVar as 556702
PM2
?
Very rare variant in population databases, with high coverage;
PP5
?
Variant 15-42359808-G-T is Pathogenic according to our data. Variant chr15-42359808-G-T is described in ClinVar as [Pathogenic]. Clinvar id is 2032843.Status of the report is criteria_provided_single_submitter, 1 stars.
Transcripts
RefSeq
Gene | Transcript | HGVSc | HGVSp | Effect | #exon/exons | MANE | UniProt |
---|---|---|---|---|---|---|---|
CAPN3 | NM_000070.3 | c.3G>T | p.Met1? | start_lost | 1/24 | ENST00000397163.8 | |
CAPN3 | NM_024344.2 | c.3G>T | p.Met1? | start_lost | 1/23 | ||
CAPN3 | NM_173087.2 | c.3G>T | p.Met1? | start_lost | 1/21 |
Ensembl
Gene | Transcript | HGVSc | HGVSp | Effect | #exon/exons | TSL | MANE | Appris | UniProt |
---|---|---|---|---|---|---|---|---|---|
CAPN3 | ENST00000397163.8 | c.3G>T | p.Met1? | start_lost | 1/24 | 1 | NM_000070.3 | P2 | |
CAPN3 | ENST00000357568.8 | c.3G>T | p.Met1? | start_lost | 1/23 | 1 | |||
CAPN3 | ENST00000349748.8 | c.3G>T | p.Met1? | start_lost | 1/21 | 1 | |||
CAPN3 | ENST00000318023.11 | c.3G>T | p.Met1? | start_lost | 1/23 | 5 | A2 |
Frequencies
GnomAD3 genomes ? Cov.: 32
GnomAD3 genomes
?
Cov.:
32
GnomAD4 exome Cov.: 32
GnomAD4 exome
Cov.:
32
GnomAD4 genome ? Cov.: 32
GnomAD4 genome
?
Cov.:
32
ClinVar
Significance: Pathogenic
Submissions summary: Pathogenic:1
Revision: criteria provided, single submitter
LINK: link
Submissions by phenotype
Autosomal recessive limb-girdle muscular dystrophy type 2A Pathogenic:1
Pathogenic, criteria provided, single submitter | clinical testing | Invitae | Oct 03, 2022 | This variant is not present in population databases (gnomAD no frequency). For these reasons, this variant has been classified as Pathogenic. This variant disrupts a region of the CAPN3 protein in which other variant(s) (p.Arg49Cys) have been determined to be pathogenic (PMID: 18055493, 18334579, 19285864, 19556129, 28403181). This suggests that this is a clinically significant region of the protein, and that variants that disrupt it are likely to be disease-causing. Disruption of the initiator codon has been observed in individual(s) with autosomal recessive limb-girdle muscular dystrophy (PMID: 25135358). This sequence change affects the initiator methionine of the CAPN3 mRNA. The next in-frame methionine is located at codon 228. - |
Computational scores
Source:
Name
Calibrated prediction
Score
Prediction
BayesDel_addAF
Pathogenic
D
BayesDel_noAF
Pathogenic
Cadd
Uncertain
Dann
Uncertain
DEOGEN2
Benign
T;.;.;T
Eigen
Uncertain
Eigen_PC
Uncertain
FATHMM_MKL
Uncertain
D
LIST_S2
Uncertain
D;D;D;D
M_CAP
Pathogenic
D
MetaRNN
Pathogenic
D;D;D;D
MetaSVM
Uncertain
D
MutationTaster
Benign
D;D;D;D;D
PROVEAN
Benign
N;N;N;N
REVEL
Pathogenic
Sift
Pathogenic
D;D;D;D
Sift4G
Pathogenic
D;D;D;D
Polyphen
0.97, 0.99, 0.96
.;D;D;D
Vest4
MutPred
Loss of MoRF binding (P = 0.0839);Loss of MoRF binding (P = 0.0839);Loss of MoRF binding (P = 0.0839);Loss of MoRF binding (P = 0.0839);
MVP
ClinPred
D
GERP RS
Varity_R
gMVP
Splicing
Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
Details are displayed if max score is > 0.2
Find out detailed SpliceAI scores and Pangolin per-transcript scores at
Publications
No publications associated with this variant yet.