chr15-42360037-C-T

Variant summary

Our verdict is Likely pathogenic. Variant got 7 ACMG points: 7P and 0B. PM1PM2PM5PP3

The ENST00000397163.8(CAPN3):​c.232C>T​(p.Pro78Ser) variant causes a missense change. The variant allele was found at a frequency of 0.000000684 in 1,461,868 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a pathogenic outcome for this variant. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar. Another variant affecting the same amino acid position, but resulting in a different missense (i.e. P78T) has been classified as Likely benign.

Frequency

Genomes: not found (cov: 32)
Exomes 𝑓: 6.8e-7 ( 0 hom. )

Consequence

CAPN3
ENST00000397163.8 missense

Scores

2
12
5

Clinical Significance

Not reported in ClinVar

Conservation

PhyloP100: 5.12
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 7 ACMG points.

PM1
In a hotspot region, there are 3 aminoacids with missense pathogenic changes in the window of +-8 aminoacids around while only 0 benign, 7 uncertain in ENST00000397163.8
PM2
Very rare variant in population databases, with high coverage;
PM5
Other missense variant is known to change same aminoacid residue: Variant chr15-42360037-C-A is described in Lovd as [Likely_pathogenic].
PP3
MetaRNN computational evidence supports a deleterious effect, 0.746

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
CAPN3NM_000070.3 linkuse as main transcriptc.232C>T p.Pro78Ser missense_variant 1/24 ENST00000397163.8 NP_000061.1
CAPN3NM_024344.2 linkuse as main transcriptc.232C>T p.Pro78Ser missense_variant 1/23 NP_077320.1
CAPN3NM_173087.2 linkuse as main transcriptc.232C>T p.Pro78Ser missense_variant 1/21 NP_775110.1

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
CAPN3ENST00000397163.8 linkuse as main transcriptc.232C>T p.Pro78Ser missense_variant 1/241 NM_000070.3 ENSP00000380349 P2P20807-1
CAPN3ENST00000357568.8 linkuse as main transcriptc.232C>T p.Pro78Ser missense_variant 1/231 ENSP00000350181 P20807-3
CAPN3ENST00000349748.8 linkuse as main transcriptc.232C>T p.Pro78Ser missense_variant 1/211 ENSP00000183936 P20807-2
CAPN3ENST00000318023.11 linkuse as main transcriptc.232C>T p.Pro78Ser missense_variant 1/235 ENSP00000326281 A2

Frequencies

GnomAD3 genomes
Cov.:
32
GnomAD3 exomes
AF:
0.00000401
AC:
1
AN:
249514
Hom.:
0
AF XY:
0.00000741
AC XY:
1
AN XY:
135008
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.00
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad SAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.00000894
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
6.84e-7
AC:
1
AN:
1461868
Hom.:
0
Cov.:
32
AF XY:
0.00000138
AC XY:
1
AN XY:
727230
show subpopulations
Gnomad4 AFR exome
AF:
0.00
Gnomad4 AMR exome
AF:
0.00
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:
0.00
Gnomad4 OTH exome
AF:
0.0000166
GnomAD4 genome
Cov.:
32
Bravo
AF:
0.00000378
ExAC
AF:
0.00000824
AC:
1

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.12
BayesDel_addAF
Pathogenic
0.21
D
BayesDel_noAF
Uncertain
0.060
CADD
Uncertain
26
DANN
Uncertain
1.0
DEOGEN2
Benign
0.32
T;.;.;D
Eigen
Uncertain
0.44
Eigen_PC
Uncertain
0.54
FATHMM_MKL
Uncertain
0.95
D
LIST_S2
Uncertain
0.88
D;D;D;D
M_CAP
Benign
0.043
D
MetaRNN
Pathogenic
0.75
D;D;D;D
MetaSVM
Uncertain
0.38
D
MutationAssessor
Uncertain
2.5
.;M;M;M
MutationTaster
Benign
1.0
D;D;D;D;D
PrimateAI
Uncertain
0.52
T
PROVEAN
Uncertain
-3.5
D;D;D;D
REVEL
Uncertain
0.52
Sift
Benign
0.049
D;D;D;D
Sift4G
Uncertain
0.037
D;T;D;T
Polyphen
0.59, 0.45, 0.64
.;P;B;P
Vest4
0.54
MutPred
0.70
Gain of phosphorylation at P78 (P = 0.0635);Gain of phosphorylation at P78 (P = 0.0635);Gain of phosphorylation at P78 (P = 0.0635);Gain of phosphorylation at P78 (P = 0.0635);
MVP
0.95
MPC
0.39
ClinPred
0.94
D
GERP RS
6.0
Varity_R
0.55
gMVP
0.74

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: rs138867099; hg19: chr15-42652235; API