Genetic Variant CAPN15:p.Ala77Val (chr16-547068-C-T) – ACMG Classification: Uncertain_significance (0 pts)

Variant summary

Our verdict is Uncertain significance. The variant received 0 ACMG points: 2P and 2B. PM2BP4_Moderate

The NM_005632.3(CAPN15):c.230C>T(p.Ala77Val) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000005 in 1,599,618 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 15/22 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★). Synonymous variant affecting the same amino acid position (i.e. A77A) has been classified as Likely benign.

Frequency

Genomes: 𝑓 0.0000066 ( 0 hom., cov: 34)

Exomes 𝑓: 0.0000048 ( 0 hom. )

Consequence

CAPN15
NM_005632.3 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 1.86

Publications

1 publications found

Variant links:

Genes affected

CAPN15 (HGNC:11182): (calpain 15) This gene encodes a protein containing zinc-finger-like repeats and a calpain-like protease domain. The encoded protein may function as a transcription factor, RNA-binding protein, or in protein-protein interactions during visual system development. [provided by RefSeq, Jul 2008]

CAPN15 Gene-Disease associations (from GenCC):

oculogastrointestinal-neurodevelopmental syndrome
Inheritance: AR Classification: STRONG Submitted by: Labcorp Genetics (formerly Invitae)

CAPN15 links:

ENSG00000261691 (HGNC:):

ENSG00000261691 links:

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Uncertain_significance. The variant received 0 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

BP4

Computational evidence support a benign effect (MetaRNN=0.08448693).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
CAPN15	NM_005632.3 link	c.230C>T	p.Ala77Val	missense_variant	Exon 4 of 14	ENST00000219611.7	NP_005623.1	O75808-1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
CAPN15	ENST00000219611.7 link	c.230C>T	p.Ala77Val	missense_variant	Exon 4 of 14	1	NM_005632.3	ENSP00000219611.2		O75808-1

Frequencies

GnomAD3 genomes

AF:

0.00000657

AC:

AN:

152266

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.00

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:

0.00000449

AC:

AN:

222796

AF XY:

0.00000814

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 FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.0000100

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.00000484

AC:

AN:

1447352

Hom.:

Cov.:

AF XY:

0.00000556

AC XY:

AN XY:

719544

show subpopulations

African (AFR)

AF:

0.00

AC:

AN:

33312

American (AMR)

AF:

0.00

AC:

AN:

43864

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

25622

East Asian (EAS)

AF:

0.00

AC:

AN:

39224

South Asian (SAS)

AF:

0.00

AC:

AN:

84946

European-Finnish (FIN)

AF:

0.0000210

AC:

AN:

47620

Middle Eastern (MID)

AF:

0.00

AC:

AN:

5726

European-Non Finnish (NFE)

AF:

0.00000452

AC:

AN:

1107232

Other (OTH)

AF:

0.0000167

AC:

AN:

59806

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.525

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

GnomAD4 genome

AF:

0.00000657

AC:

AN:

152266

Hom.:

Cov.:

AF XY:

0.0000134

AC XY:

AN XY:

74386

show subpopulations

African (AFR)

AF:

0.00

AC:

AN:

41466

American (AMR)

AF:

0.00

AC:

AN:

15290

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

3472

East Asian (EAS)

AF:

0.00

AC:

AN:

5198

South Asian (SAS)

AF:

0.00

AC:

AN:

4838

European-Finnish (FIN)

AF:

0.00

AC:

AN:

10632

Middle Eastern (MID)

AF:

0.00

AC:

AN:

316

European-Non Finnish (NFE)

AF:

0.0000147

AC:

AN:

68048

Other (OTH)

AF:

0.00

AC:

AN:

2094

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.575

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Alfa

AF:

0.00

Hom.:

Bravo

AF:

0.00000378

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

not specified

Uncertain:1

Jun 07, 2025

Ambry Genetics

Significance:Uncertain significance

Review Status:criteria provided, single submitter

Collection Method:clinical testing

The c.230C>T (p.A77V) alteration is located in exon 4 (coding exon 1) of the CAPN15 gene. This alteration results from a C to T substitution at nucleotide position 230, causing the alanine (A) at amino acid position 77 to be replaced by a valine (V). 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

0.075

BayesDel_addAF

Benign

-0.036

BayesDel_noAF

Benign

-0.29

CADD

Benign

9.1

(source)

DANN

Uncertain

0.99

DEOGEN2

Benign

0.016

T;T;T

Eigen

Benign

-0.60

Eigen_PC

Benign

-0.59

FATHMM_MKL

Benign

0.61

LIST_S2

Uncertain

0.87

D;D;D

M_CAP

Uncertain

0.11

MetaRNN

Benign

0.084

T;T;T

MetaSVM

Benign

-0.46

MutationAssessor

Benign

1.5

.;L;.

PhyloP100

1.9

PrimateAI

Benign

0.38

PROVEAN

Benign

-0.62

N;N;.

REVEL

Benign

0.20

Sift

Benign

0.056

T;T;.

Sift4G

Uncertain

0.028

D;T;.

Polyphen

0.22

.;B;.

Vest4

0.17

MutPred

0.30

Loss of disorder (P = 0.0799);Loss of disorder (P = 0.0799);.;

MVP

0.24

ClinPred

0.084

GERP RS

4.8

Varity_R

0.022

gMVP

0.23

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

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Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

Publications

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

Other links and lift over