rs1555417323

Variant summary

Our verdict is Likely pathogenic. Variant got 6 ACMG points: 6P and 0B. PM2PP3_Strong

The NM_000070.3(CAPN3):​c.224A>G​(p.Tyr75Cys) variant causes a missense change involving the alteration of a non-conserved nucleotide. 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 Uncertain significance (★★).

Frequency

Genomes: not found (cov: 32)

Consequence

CAPN3
NM_000070.3 missense

Scores

9
8
2

Clinical Significance

Uncertain significance criteria provided, multiple submitters, no conflicts U:2

Conservation

PhyloP100: 3.03
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]

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ACMG classification

Classification made for transcript

Verdict is Likely_pathogenic. Variant got 6 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
PP3
MetaRNN computational evidence supports a deleterious effect, 0.961

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
CAPN3NM_000070.3 linkuse as main transcriptc.224A>G p.Tyr75Cys missense_variant 1/24 ENST00000397163.8 NP_000061.1 P20807-1
CAPN3NM_024344.2 linkuse as main transcriptc.224A>G p.Tyr75Cys missense_variant 1/23 NP_077320.1 P20807-3
CAPN3NM_173087.2 linkuse as main transcriptc.224A>G p.Tyr75Cys missense_variant 1/21 NP_775110.1 P20807-2

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
CAPN3ENST00000397163.8 linkuse as main transcriptc.224A>G p.Tyr75Cys missense_variant 1/241 NM_000070.3 ENSP00000380349.3 P20807-1
ENSG00000258461ENST00000495723.1 linkuse as main transcriptn.*105+5576A>G intron_variant 2 ENSP00000492063.1 A0A1W2PQD3

Frequencies

GnomAD3 genomes
Cov.:
32
GnomAD4 exome
Cov.:
32
GnomAD4 genome
Cov.:
32

ClinVar

Significance: Uncertain significance
Submissions summary: Uncertain:2
Revision: criteria provided, multiple submitters, no conflicts
LINK: link

Submissions by phenotype

Autosomal recessive limb-girdle muscular dystrophy type 2A Uncertain:1
Uncertain significance, criteria provided, single submitterclinical testingCounsylOct 02, 2017- -
not provided Uncertain:1
Uncertain significance, criteria provided, single submitterclinical testingEurofins Ntd Llc (ga)Feb 28, 2017- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Uncertain
0.53
BayesDel_addAF
Pathogenic
0.37
D
BayesDel_noAF
Pathogenic
0.30
CADD
Uncertain
24
DANN
Uncertain
1.0
DEOGEN2
Benign
0.41
T;.;.;D
Eigen
Uncertain
0.33
Eigen_PC
Uncertain
0.26
FATHMM_MKL
Uncertain
0.84
D
LIST_S2
Uncertain
0.93
D;D;D;D
M_CAP
Pathogenic
0.34
D
MetaRNN
Pathogenic
0.96
D;D;D;D
MetaSVM
Pathogenic
1.0
D
MutationAssessor
Uncertain
2.8
.;M;M;M
PrimateAI
Uncertain
0.62
T
PROVEAN
Pathogenic
-5.1
D;D;D;D
REVEL
Pathogenic
0.93
Sift
Pathogenic
0.0
D;D;D;D
Sift4G
Pathogenic
0.0
D;D;D;D
Polyphen
0.93, 0.98
.;P;P;D
Vest4
0.70
MutPred
0.83
Loss of phosphorylation at Y75 (P = 0.0379);Loss of phosphorylation at Y75 (P = 0.0379);Loss of phosphorylation at Y75 (P = 0.0379);Loss of phosphorylation at Y75 (P = 0.0379);
MVP
0.98
MPC
0.64
ClinPred
0.99
D
GERP RS
2.2
Varity_R
0.82
gMVP
0.89

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.

Other links and lift over

dbSNP: rs1555417323; hg19: chr15-42652227; API