chr11-77115426-T-C

Position:

• chr11-77115426-T-C

Variant summary

Our verdict is Likely pathogenic. Variant got 8 ACMG points: 8P and 0B. PM1 PM2 PP3_Moderate PP5_Moderate

The NM_004055.5(CAPN5):​c.731T>C​(p.Leu244Pro) variant causes a missense change. 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 Pathogenic (★).

• Frequency: Genomes: not found (cov: 33)
• Consequence: CAPN5 NM_004055.5 missense
• Clinical Significance: Pathogenic criteria provided, single submitter P:2
• Conservation: PhyloP100: 5.06

Genes affected

CAPN5 (HGNC:1482): (calpain 5) Calpains are calcium-dependent cysteine proteases involved in signal transduction in a variety of cellular processes. A functional calpain protein consists of an invariant small subunit and 1 of a family of large subunits. CAPN5 is one of the large subunits. Unlike some of the calpains, CAPN5 and CAPN6 lack a calmodulin-like domain IV. Because of the significant similarity to Caenorhabditis elegans sex determination gene tra-3, CAPN5 is also called as HTRA3. [provided by RefSeq, Jul 2008]

ACMG classification

Verdict is Likely_pathogenic. Variant got 8 ACMG points.

• PM1: In a hotspot region, there are 2 aminoacids with missense pathogenic changes in the window of +-8 aminoacids around while only 1 benign, 8 uncertain in NM_004055.5
• PM2: Very rare variant in population databases, with high coverage
• PP3: MetaRNN computational evidence supports a deleterious effect, 0.875
• PP5: Variant 11-77115426-T-C is Pathogenic according to our data. Variant chr11-77115426-T-C is described in ClinVar as [Pathogenic]. Clinvar id is 39807.Status of the report is criteria_provided_single_submitter, 1 stars. Variant chr11-77115426-T-C is described in Lovd as [Pathogenic].

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	UniProt
CAPN5	NM_004055.5	c.731T>C	p.Leu244Pro	missense_variant	6/13	ENST00000648180.1
CAPN5	XM_011545225.1	c.851T>C	p.Leu284Pro	missense_variant	7/14
CAPN5	XM_017018223.3	c.839T>C	p.Leu280Pro	missense_variant	6/13

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
CAPN5	ENST00000648180.1	c.731T>C	p.Leu244Pro	missense_variant	6/13		NM_004055.5	P1

Frequencies

GnomAD3 genomes Cov.: 33

GnomAD4 exome Cov.: 32

GnomAD4 genome Cov.: 33

ClinVar

Significance: Pathogenic

Submissions summary: Pathogenic:2

Revision: criteria provided, single submitter

Submissions by phenotype

Proliferative vitreoretinopathy Pathogenic:1

Pathogenic, no assertion criteria provided

literature only

OMIM

Jan 01, 2012

- -

not provided Pathogenic:1

Pathogenic, criteria provided, single submitter

clinical testing

Labcorp Genetics (formerly Invitae), Labcorp

Nov 27, 2023

This sequence change replaces leucine, which is neutral and non-polar, with proline, which is neutral and non-polar, at codon 244 of the CAPN5 protein (p.Leu244Pro). This variant is not present in population databases (gnomAD no frequency). This missense change has been observed in individual(s) with autosomal dominant neovascular inflammatory vitreoretinopathy (PMID: 23055945). It has also been observed to segregate with disease in related individuals. ClinVar contains an entry for this variant (Variation ID: 39807). Advanced modeling of protein sequence and biophysical properties (such as structural, functional, and spatial information, amino acid conservation, physicochemical variation, residue mobility, and thermodynamic stability) performed at Invitae indicates that this missense variant is not expected to disrupt CAPN5 protein function with a negative predictive value of 80%. Experimental studies have shown that this missense change affects CAPN5 function (PMID: 23055945). For these reasons, this variant has been classified as Pathogenic. -

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Pathogenic	0.97
BayesDel_addAF	Pathogenic	0.41	D
BayesDel_noAF	Pathogenic	0.35
CADD	Pathogenic	29
DANN	Pathogenic	1.0
DEOGEN2	Uncertain	0.62	D;D;D;T;.
Eigen	Uncertain	0.67
Eigen_PC	Uncertain	0.62
FATHMM_MKL	Uncertain	0.89	D
LIST_S2	Uncertain	0.93	.;.;D;D;T
M_CAP	Pathogenic	0.39	D
MetaRNN	Pathogenic	0.88	D;D;D;D;D
MetaSVM	Uncertain	0.67	D
MutationAssessor	Uncertain	2.6	M;M;M;.;.
MutationTaster	Benign	1.0	D;D;D;D
PrimateAI	Uncertain	0.71	T
PROVEAN	Uncertain	-3.3	D;.;D;D;.
REVEL	Pathogenic	0.87
Sift	Uncertain	0.014	D;.;D;D;.
Sift4G	Uncertain	0.018	D;.;D;D;.
Polyphen		1.0	D;D;D;D;.
Vest4		0.77
MutPred		0.65		.;.;.;Loss of stability (P = 0.0129);.;
MVP		0.94
MPC		0.82
ClinPred		0.99	D
GERP RS		5.1
Varity_R		0.93
gMVP		0.92

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

Other links and lift over

dbSNP: rs397514602; hg19: chr11-76826472;