chr10-68195498-C-T

Variant names:

Variant summary

Our verdict is Benign. Variant got -9 ACMG points: 0P and 9B. BP6BS1BS2

The NM_032578.4(MYPN):c.3124C>T(p.Arg1042Cys) variant causes a missense change. The variant allele was found at a frequency of 0.000401 in 1,614,034 control chromosomes in the GnomAD database, with no homozygous occurrence. Variant has been reported in ClinVar as Conflicting classifications of pathogenicity (no stars).

Frequency

Genomes: 𝑓 0.00037 ( 0 hom., cov: 32)

Exomes 𝑓: 0.00040 ( 0 hom. )

Consequence

MYPN
NM_032578.4 missense

Scores

Clinical Significance

Conflicting classifications of pathogenicity criteria provided, conflicting classifications U:9B:3

Conservation

PhyloP100: 5.47

Variant links:

Genes affected

MYPN (HGNC:23246): (myopalladin) Striated muscle in vertebrates comprises large proteins which must be organized properly to contract efficiently. Z-lines in striated muscle are a sign of this organization, representing the ends of actin thin filaments, titin, nebulin or nebulette and accessory proteins required for structure and function. This gene encodes a protein which interacts with nebulin in skeletal muscle or nebulette in cardiac muscle and alpha-actinin. In addition, this gene product can interact with a protein with the I-band indicating it has a regulatory as well as structural function. Alternative splicing results in multiple transcript variants. [provided by RefSeq, Dec 2011]

MYPN links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Benign. Variant got -9 ACMG points.

BP6

Variant 10-68195498-C-T is Benign according to our data. Variant chr10-68195498-C-T is described in ClinVar as [Conflicting_classifications_of_pathogenicity]. Clinvar id is 155824.We mark this variant Likely_benign, oryginal submissions are: {Likely_benign=3, Uncertain_significance=5}.

BS1

Variant frequency is greater than expected in population sas. gnomad4 allele frequency = 0.000374 (57/152258) while in subpopulation SAS AF= 0.00083 (4/4822). AF 95% confidence interval is 0.000534. There are 0 homozygotes in gnomad4. There are 29 alleles in male gnomad4 subpopulation. Median coverage is 32. This position pass quality control queck.

BS2

High AC in GnomAd4 at 57 AD gene.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
MYPN	NM_032578.4 link	c.3124C>T	p.Arg1042Cys	missense_variant	Exon 15 of 20	ENST00000358913.10	NP_115967.2

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
MYPN	ENST00000358913.10 link	c.3124C>T	p.Arg1042Cys	missense_variant	Exon 15 of 20	1	NM_032578.4	ENSP00000351790.5		Q86TC9-1

Frequencies

GnomAD3 genomes

AF:

0.000375

AC:

AN:

152140

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.0000241

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.0000655

Gnomad ASJ

AF:

0.00

Gnomad EAS

AF:

0.00

Gnomad SAS

AF:

0.000829

Gnomad FIN

AF:

0.000377

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.000691

Gnomad OTH

AF:

0.00

GnomAD3 exomes

AF:

0.000414

AC:

104

AN:

251424

Hom.:

AF XY:

0.000427

AC XY:

AN XY:

135880

show subpopulations

Gnomad AFR exome

AF:

0.000123

Gnomad AMR exome

AF:

0.0000289

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00

Gnomad SAS exome

AF:

0.000751

Gnomad FIN exome

AF:

0.000231

Gnomad NFE exome

AF:

0.000624

Gnomad OTH exome

AF:

0.000326

GnomAD4 exome

AF:

0.000404

AC:

590

AN:

1461776

Hom.:

Cov.:

AF XY:

0.000433

AC XY:

315

AN XY:

727202

show subpopulations

Gnomad4 AFR exome

AF:

0.0000598

Gnomad4 AMR exome

AF:

0.0000447

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.00

Gnomad4 SAS exome

AF:

0.000638

Gnomad4 FIN exome

AF:

0.000243

Gnomad4 NFE exome

AF:

0.000456

Gnomad4 OTH exome

AF:

0.000182

GnomAD4 genome

AF:

0.000374

AC:

AN:

152258

Hom.:

Cov.:

AF XY:

0.000390

AC XY:

AN XY:

74454

show subpopulations

Gnomad4 AFR

AF:

0.0000241

Gnomad4 AMR

AF:

0.0000654

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.00

Gnomad4 SAS

AF:

0.000830

Gnomad4 FIN

AF:

0.000377

Gnomad4 NFE

AF:

0.000691

Gnomad4 OTH

AF:

0.00

Alfa

AF:

0.000507

Hom.:

Bravo

AF:

0.000366

TwinsUK

AF:

0.000539

AC:

ALSPAC

AF:

0.000259

AC:

ESP6500AA

AF:

0.000454

AC:

ESP6500EA

AF:

0.000116

AC:

ExAC

AF:

0.000395

AC:

EpiCase

AF:

0.000382

EpiControl

AF:

0.000652

ClinVar

Significance: Conflicting classifications of pathogenicity

Submissions summary: Uncertain:9Benign:3

Revision: criteria provided, conflicting classifications

LINK: link

Submissions by phenotype

not provided

Uncertain:5

Jul 01, 2023

CeGaT Center for Human Genetics Tuebingen

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: clinical testing

- -

Mar 15, 2025

GeneDx

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: clinical testing

In silico analysis supports that this missense variant has a deleterious effect on protein structure/function; Identified in patients with cardiomyopathy in published literature; several patients harbored additional cardiogenetic variants (PMID: 28798025, 26084686, 35284542, 30847666); This variant is associated with the following publications: (PMID: 26084686, 35284542, 30847666, 28798025) -

Clinical Genetics, Academic Medical Center

Significance: Uncertain significance

Review Status: no assertion criteria provided

Collection Method: clinical testing

- -

Joint Genome Diagnostic Labs from Nijmegen and Maastricht, Radboudumc and MUMC+

Significance: Uncertain significance

Review Status: no assertion criteria provided

Collection Method: clinical testing

- -

Apr 11, 2024

Mayo Clinic Laboratories, Mayo Clinic

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: clinical testing

BS1 -

Dilated cardiomyopathy 1KK

Uncertain:3Benign:1

May 31, 2017

Clinical Genetics DNA and cytogenetics Diagnostics Lab, Erasmus MC, Erasmus Medical Center

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: clinical testing

- -

Diagnostic Laboratory, Department of Genetics, University Medical Center Groningen

Significance: Uncertain significance

Review Status: no assertion criteria provided

Collection Method: clinical testing

- -

Jan 02, 2025

Labcorp Genetics (formerly Invitae), Labcorp

Significance: Likely benign

Review Status: criteria provided, single submitter

Collection Method: clinical testing

- -

Aug 22, 2016

Genome Diagnostics Laboratory, University Medical Center Utrecht

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: clinical testing

- -

Primary familial hypertrophic cardiomyopathy

Uncertain:1

Oct 15, 2014

Blueprint Genetics

Significance: Uncertain significance

Review Status: no assertion criteria provided

Collection Method: clinical testing

- -

not specified

Benign:1

Jan 04, 2022

Women's Health and Genetics/Laboratory Corporation of America, LabCorp

Significance: Likely benign

Review Status: criteria provided, single submitter

Collection Method: clinical testing

Variant summary: MYPN c.3124C>T (p.Arg1042Cys) results in a non-conservative amino acid change in the encoded protein sequence. Four of five in-silico tools predict a damaging effect of the variant on protein function. The variant allele was found at a frequency of 0.00041 in 251424 control chromosomes (gnomAD). The observed variant frequency is approximately 8-fold of the estimated maximal expected allele frequency for a pathogenic variant in MYPN causing Cardiomyopathy phenotype (5e-05), strongly suggesting that the variant is benign. c.3124C>T has been reported in the literature in individuals affected with Cardiomyopathy, including dilated cardiomyopathy, hypertrophic cardiomyopathy and left ventricular hypertrabeculation (Akinrinade_2015, Miszalski-Jamka_2017, van Lint_2019). These reports do not provide unequivocal conclusions about association of the variant with Cardiomyopathy. A co-occurrence with a pathogenic variant has been reported (TTNI3 c.407G>A, p.Arg136Gln; van Lint_2019). To our knowledge, no experimental evidence demonstrating an impact on protein function has been reported. Six ClinVar submitters have assessed this variant since 2014: one classified the variant as likely benign and five as uncertain significance. Based on the evidence outlined above, the variant was classified as likely benign. -

Cardiovascular phenotype

Benign:1

Feb 09, 2021

Ambry Genetics

Significance: Likely benign

Review Status: criteria provided, single submitter

Collection Method: clinical testing

This alteration is classified as likely benign based on a combination of the following: seen in unaffected individuals, population frequency, intact protein function, lack of segregation with disease, co-occurrence, RNA analysis, in silico models, amino acid conservation, lack of disease association in case-control studies, and/or the mechanism of disease or impacted region is inconsistent with a known cause of pathogenicity. -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Pathogenic

0.57

BayesDel_addAF

Uncertain

0.015

BayesDel_noAF

Pathogenic

0.16

CADD

Pathogenic

DANN

Pathogenic

1.0

DEOGEN2

Benign

0.17

.;.;.;T

Eigen

Uncertain

0.64

Eigen_PC

Uncertain

0.60

FATHMM_MKL

Pathogenic

0.99

LIST_S2

Uncertain

0.94

D;D;.;D

M_CAP

Benign

0.070

MetaRNN

Uncertain

0.51

D;D;D;D

MetaSVM

Benign

-0.42

MutationAssessor

Uncertain

2.5

M;.;M;.

PrimateAI

Uncertain

0.74

PROVEAN

Pathogenic

-5.4

D;D;D;.

REVEL

Uncertain

0.34

Sift

Pathogenic

0.0

D;D;D;.

Sift4G

Pathogenic

0.0

D;D;D;D

Polyphen

1.0

D;D;D;.

Vest4

0.78

MVP

0.86

MPC

0.72

ClinPred

0.23

GERP RS

5.5

Varity_R

0.64

gMVP

0.50

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