Variant X-111251664-G-A details in Genebe, Genetics Data Aggregator

Variant summary

Our verdict is Likely benign. Variant got -4 ACMG points: 0P and 4B. BS2

The NM_014289.4(CAPN6):c.778C>T(p.Arg260Cys) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000119 in 1,096,405 control chromosomes in the GnomAD database, with no homozygous occurrence. There are 3 hemizygotes in GnomAD. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar.

Frequency

Genomes: not found (cov: 23)

Exomes 𝑓: 0.000012 ( 0 hom. 3 hem. )

Consequence

CAPN6
NM_014289.4 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 2.73

Variant links:

Genes affected

CAPN6 (HGNC:1483): (calpain 6) Calpains are ubiquitous, well-conserved family of calcium-dependent, cysteine proteases. The calpain proteins are heterodimers consisting of an invariant small subunit and variable large subunits. The large subunit possesses a cysteine protease domain, and both subunits possess calcium-binding domains. Calpains have been implicated in neurodegenerative processes, as their activation can be triggered by calcium influx and oxidative stress. The protein encoded by this gene is highly expressed in the placenta. Its C-terminal region lacks any homology to the calmodulin-like domain of other calpains. The protein lacks critical active site residues and thus is suggested to be proteolytically inactive. The protein may play a role in tumor formation by inhibiting apoptosis and promoting angiogenesis. [provided by RefSeq, Nov 2009]

CAPN6 links:

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ACMG classification

Classification made for transcript

Verdict is Likely_benign. Variant got -4 ACMG points.

BS2

High Hemizygotes in GnomAdExome4 at 3 gene

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
CAPN6	NM_014289.4 linkuse as main transcript	c.778C>T	p.Arg260Cys	missense_variant	6/13	ENST00000324068.2	NP_055104.2	Q9Y6Q1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris	UniProt
CAPN6	ENST00000324068.2 linkuse as main transcript	c.778C>T	p.Arg260Cys	missense_variant	6/13	1	NM_014289.4	ENSP00000317214.1		Q9Y6Q1

Frequencies

GnomAD3 genomes

Cov.:

GnomAD3 exomes

AF:

0.00000545

AC:

AN:

183370

Hom.:

AF XY:

0.0000147

AC XY:

AN XY:

67824

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:

0.0000122

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.0000119

AC:

AN:

1096405

Hom.:

Cov.:

AF XY:

0.00000829

AC XY:

AN XY:

361793

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:

0.0000143

Gnomad4 OTH exome

AF:

0.0000217

GnomAD4 genome

Cov.:

Bravo

AF:

0.00000756

ExAC

AF:

0.0000165

AC:

EpiCase

AF:

0.00

EpiControl

AF:

0.000119

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

Nov 12, 2024

The c.778C>T (p.R260C) alteration is located in exon 6 (coding exon 5) of the CAPN6 gene. This alteration results from a C to T substitution at nucleotide position 778, causing the arginine (R) at amino acid position 260 to be replaced by a cysteine (C). 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

0.32

BayesDel_addAF

Pathogenic

0.48

BayesDel_noAF

Pathogenic

0.46

CADD

Pathogenic

DANN

Pathogenic

1.0

DEOGEN2

Benign

0.35

FATHMM_MKL

Uncertain

0.96

LIST_S2

Benign

0.85

M_CAP

Pathogenic

0.75

MetaRNN

Uncertain

0.73

MetaSVM

Uncertain

0.58

MutationAssessor

Uncertain

2.5

PrimateAI

Uncertain

0.66

PROVEAN

Pathogenic

-5.1

REVEL

Pathogenic

0.69

Sift

Pathogenic

0.0

Sift4G

Uncertain

0.0030

Polyphen

0.99

Vest4

0.35

MutPred

0.59

Loss of MoRF binding (P = 0.001);

MVP

0.99

MPC

1.5

ClinPred

0.93

GERP RS

6.2

Varity_R

0.72

gMVP

0.75

Splicing

Name

Calibrated prediction

Score

Prediction

SpliceAI score (max)

0.010

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