Variant chr19-36149599-A-G details in Genebe, Genetics Data Aggregator

Variant summary

Our verdict is Uncertain significance. Variant got 0 ACMG points: 2P and 2B. PM2BP4_Moderate

The NM_001749.4(CAPNS1):c.743A>G(p.Lys248Arg) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000372 in 1,343,762 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 15/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: not found (cov: 32)

Exomes 𝑓: 0.0000037 ( 0 hom. )

Consequence

CAPNS1
NM_001749.4 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 1.26

Variant links:

Genes affected

CAPNS1 (HGNC:1481): (calpain small subunit 1) This gene is a member of the calpain small subunit family. Calpains are calcium-dependent cysteine proteinases that are widely distributed in mammalian cells. Calpains operate as heterodimers, comprising a specific large catalytic subunit (calpain 1 subunit in Calpain I, and calpain 2 subunit in Calpain II), and a common small regulatory subunit encoded by this gene. This encoded protein is essential for the stability and function of both calpain heterodimers, whose proteolytic activities influence various cellular functions including apoptosis, proliferation, migration, adhesion, and autophagy. Calpains have been implicated in neurodegenerative processes, such as myotonic dystrophy. A pseudogene of this gene has been defined on chromosome 1. Alternative splicing results in multiple transcript variants. [provided by RefSeq, Oct 2014]

CAPNS1 links:

CAPNS1 (HGNC:):

CAPNS1 links:

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ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 0 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

BP4

Computational evidence support a benign effect (MetaRNN=0.13608009).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
CAPNS1	NM_001749.4 linkuse as main transcript	c.743A>G	p.Lys248Arg	missense_variant	10/11	ENST00000246533.8	NP_001740.1	P04632

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris	UniProt
CAPNS1	ENST00000246533.8 linkuse as main transcript	c.743A>G	p.Lys248Arg	missense_variant	10/11	1	NM_001749.4	ENSP00000246533.2		P04632

Frequencies

GnomAD3 genomes

Cov.:

GnomAD3 exomes

AF:

0.00000599

AC:

AN:

166912

Hom.:

AF XY:

0.0000111

AC XY:

AN XY:

90490

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.00

Gnomad ASJ exome

AF:

0.000217

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:

0.00000372

AC:

AN:

1343762

Hom.:

Cov.:

AF XY:

0.00000303

AC XY:

AN XY:

660102

show subpopulations

Gnomad4 AFR exome

AF:

0.00

Gnomad4 AMR exome

AF:

0.0000383

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.00

Gnomad4 SAS exome

AF:

0.0000145

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

9.49e-7

Gnomad4 OTH exome

AF:

0.0000181

GnomAD4 genome

Cov.:

Bravo

AF:

0.0000227

ExAC

AF:

0.00000825

AC:

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

not specified

Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

Ambry Genetics

Feb 17, 2022

The c.743A>G (p.K248R) alteration is located in exon 10 (coding exon 9) of the CAPNS1 gene. This alteration results from a A to G substitution at nucleotide position 743, causing the lysine (K) at amino acid position 248 to be replaced by an arginine (R). Based on insufficient or conflicting evidence, the clinical significance of this alteration remains unclear. -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.071

BayesDel_addAF

Benign

-0.054

BayesDel_noAF

Benign

-0.32

CADD

Benign

DANN

Uncertain

0.99

DEOGEN2

Benign

0.36

T;T;T;T;.;T;T;T;T

Eigen

Benign

-0.58

Eigen_PC

Benign

-0.43

FATHMM_MKL

Uncertain

0.96

LIST_S2

Benign

0.47

.;.;T;T;T;.;T;.;T

M_CAP

Benign

0.037

MetaRNN

Benign

0.14

T;T;T;T;T;T;T;T;T

MetaSVM

Benign

-1.1

MutationAssessor

Benign

1.0

L;.;.;.;.;.;L;.;.

PrimateAI

Benign

0.35

PROVEAN

Benign

-1.7

N;.;.;.;.;.;.;.;.

REVEL

Benign

0.11

Sift

Benign

0.21

T;.;.;.;.;.;.;.;.

Sift4G

Benign

0.54

T;T;T;T;T;T;T;T;T

Polyphen

0.0040

B;.;.;.;.;.;B;.;.

Vest4

0.15

MutPred

0.36

Loss of ubiquitination at K248 (P = 0.0192);.;.;.;Loss of ubiquitination at K248 (P = 0.0192);.;Loss of ubiquitination at K248 (P = 0.0192);.;.;

MVP

0.82

MPC

0.40

ClinPred

0.13

GERP RS

0.90

RBP_binding_hub_radar

0.0

RBP_regulation_power_radar

1.7

Varity_R

0.27

gMVP

0.56

Splicing

Name

Calibrated prediction

Score

Prediction

SpliceAI score (max)

0.030

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