ENST00000673743.1:c.-6C>T

Variant summary

Our verdict is Uncertain significance. The variant received 5 ACMG points: 5P and 0B. PP3_StrongPP5

The ENST00000673743.1(CAPN3):​c.-6C>T variant causes a 5 prime UTR premature start codon gain change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000496 in 1,612,032 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).

Frequency

Genomes: 𝑓 0.000013 ( 0 hom., cov: 31)
Exomes 𝑓: 0.0000041 ( 0 hom. )

Consequence

CAPN3
ENST00000673743.1 5_prime_UTR_premature_start_codon_gain

Scores

14
3
1

Clinical Significance

Conflicting classifications of pathogenicity criteria provided, conflicting classifications P:7U:1

Conservation

PhyloP100: 3.17

Publications

4 publications found
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 Gene-Disease associations (from GenCC):
  • autosomal recessive limb-girdle muscular dystrophy
    Inheritance: AR Classification: DEFINITIVE Submitted by: ClinGen
  • autosomal recessive limb-girdle muscular dystrophy type 2A
    Inheritance: AR Classification: DEFINITIVE, STRONG, SUPPORTIVE Submitted by: Orphanet, Myriad Women’s Health, Labcorp Genetics (formerly Invitae)
  • muscular dystrophy, limb-girdle, autosomal dominant 4
    Inheritance: AD Classification: STRONG, MODERATE Submitted by: Ambry Genetics, Labcorp Genetics (formerly Invitae)
  • muscular dystrophy, limb-girdle, autosomal dominant
    Inheritance: AD Classification: LIMITED Submitted by: ClinGen

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Uncertain_significance. The variant received 5 ACMG points.

PP3
MetaRNN computational evidence supports a deleterious effect, 0.984
PP5
Variant 15-42409972-C-T is Pathogenic according to our data. Variant chr15-42409972-C-T is described in ClinVar as Conflicting_classifications_of_pathogenicity. ClinVar VariationId is 285572.

Variant Effect in Transcripts

ACMG analysis was done for transcript: ENST00000673743.1. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Selected
GeneTranscriptTagsHGVScHGVSpEffectExon RankProteinUniProt
CAPN3
NM_000070.3
MANE Select
c.2092C>Tp.Arg698Cys
missense
Exon 19 of 24NP_000061.1
CAPN3
NM_024344.2
c.2074C>Tp.Arg692Cys
missense
Exon 18 of 23NP_077320.1
CAPN3
NM_173087.2
c.1816C>Tp.Arg606Cys
missense
Exon 16 of 21NP_775110.1

Ensembl Transcripts

Selected
GeneTranscriptTagsHGVScHGVSpEffectExon RankProteinUniProt
CAPN3
ENST00000673743.1
c.-6C>T
5_prime_UTR_premature_start_codon_gain
Exon 6 of 11ENSP00000500989.1
CAPN3
ENST00000397163.8
TSL:1 MANE Select
c.2092C>Tp.Arg698Cys
missense
Exon 19 of 24ENSP00000380349.3
CAPN3
ENST00000357568.8
TSL:1
c.2074C>Tp.Arg692Cys
missense
Exon 18 of 23ENSP00000350181.3

Frequencies

GnomAD3 genomes
AF:
0.0000131
AC:
2
AN:
152110
Hom.:
0
Cov.:
31
show subpopulations
Gnomad AFR
AF:
0.0000241
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
GnomAD2 exomes
AF:
0.0000159
AC:
4
AN:
251334
AF XY:
0.0000221
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.0000289
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.0000264
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.00000411
AC:
6
AN:
1459922
Hom.:
0
Cov.:
34
AF XY:
0.00000688
AC XY:
5
AN XY:
726256
show subpopulations
African (AFR)
AF:
0.00
AC:
0
AN:
33412
American (AMR)
AF:
0.0000224
AC:
1
AN:
44716
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
26134
East Asian (EAS)
AF:
0.00
AC:
0
AN:
39700
South Asian (SAS)
AF:
0.00
AC:
0
AN:
86180
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
53420
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
4294
European-Non Finnish (NFE)
AF:
0.00000450
AC:
5
AN:
1111840
Other (OTH)
AF:
0.00
AC:
0
AN:
60226
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.450
Heterozygous variant carriers
0
1
2
3
4
5
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Exome Het
Variant carriers
0
2
4
6
8
10
<30
30-35
35-40
40-45
45-50
50-55
55-60
60-65
65-70
70-75
75-80
>80
Age
GnomAD4 genome
AF:
0.0000131
AC:
2
AN:
152110
Hom.:
0
Cov.:
31
AF XY:
0.0000135
AC XY:
1
AN XY:
74304
show subpopulations
African (AFR)
AF:
0.0000241
AC:
1
AN:
41414
American (AMR)
AF:
0.00
AC:
0
AN:
15278
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
3472
East Asian (EAS)
AF:
0.00
AC:
0
AN:
5168
South Asian (SAS)
AF:
0.00
AC:
0
AN:
4832
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
10604
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
316
European-Non Finnish (NFE)
AF:
0.0000147
AC:
1
AN:
68022
Other (OTH)
AF:
0.00
AC:
0
AN:
2092
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.500
Heterozygous variant carriers
0
0
1
1
2
2
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Genome Het
Variant carriers
0
2
4
6
8
10
<30
30-35
35-40
40-45
45-50
50-55
55-60
60-65
65-70
70-75
75-80
>80
Age
Alfa
AF:
0.00
Hom.:
0
Bravo
AF:
0.0000113
ExAC
AF:
0.0000165
AC:
2

ClinVar

ClinVar submissions as Germline

Significance:Conflicting classifications of pathogenicity
Revision:criteria provided, conflicting classifications
View on ClinVar
Pathogenic
VUS
Benign
Condition
5
-
-
Autosomal recessive limb-girdle muscular dystrophy type 2A (5)
1
1
-
not provided (2)
1
-
-
Muscular dystrophy, limb-girdle, autosomal dominant 4 (1)

Computational scores

Source: dbNSFP v4.9

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Pathogenic
0.70
BayesDel_addAF
Pathogenic
0.34
D
BayesDel_noAF
Pathogenic
0.33
CADD
Pathogenic
30
DANN
Pathogenic
1.0
DEOGEN2
Benign
0.26
T
Eigen
Pathogenic
0.74
Eigen_PC
Uncertain
0.59
FATHMM_MKL
Uncertain
0.88
D
LIST_S2
Pathogenic
0.99
D
M_CAP
Pathogenic
0.41
D
MetaRNN
Pathogenic
0.98
D
MetaSVM
Pathogenic
0.87
D
MutationAssessor
Pathogenic
3.7
H
PhyloP100
3.2
PrimateAI
Uncertain
0.72
T
PROVEAN
Pathogenic
-6.5
D
REVEL
Pathogenic
0.94
Sift
Pathogenic
0.0
D
Sift4G
Pathogenic
0.0
D
Polyphen
1.0
D
Vest4
0.99
MutPred
0.93
Gain of catalytic residue at A702 (P = 0.1683)
MVP
0.95
MPC
0.74
ClinPred
0.96
D
GERP RS
3.9
Varity_R
0.79
gMVP
0.78
Mutation Taster
=0/100
disease causing (ClinVar)

Splicing

Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
0.020
Details are displayed if max score is > 0.2

Find out detailed SpliceAI scores and Pangolin per-transcript scores at spliceailookup.broadinstitute.org

Publications

Other links and lift over

dbSNP: rs764370512; hg19: chr15-42702170; API