NM_000256.3:c.786C>T

Variant names:

Variant summary

Our verdict is Benign. Variant got -21 ACMG points: 0P and 21B. BP4_StrongBP6_Very_StrongBP7BA1

The NM_000256.3(MYBPC3):c.786C>T(p.Thr262Thr) variant causes a synonymous change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.114 in 1,571,980 control chromosomes in the GnomAD database, including 11,203 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Benign (★★).

Frequency

Genomes: 𝑓 0.088 ( 712 hom., cov: 32)

Exomes 𝑓: 0.12 ( 10491 hom. )

Consequence

MYBPC3
NM_000256.3 synonymous

Scores

Clinical Significance

Benign criteria provided, multiple submitters, no conflicts B:15

Conservation

PhyloP100: -3.72

Variant links:

Genes affected

MYBPC3 (HGNC:7551): (myosin binding protein C3) MYBPC3 encodes the cardiac isoform of myosin-binding protein C. Myosin-binding protein C is a myosin-associated protein found in the cross-bridge-bearing zone (C region) of A bands in striated muscle. MYBPC3 is expressed exclusively in heart muscle and is a key regulator of cardiac contraction. Mutations in this gene are a frequent cause of familial hypertrophic cardiomyopathy. [provided by RefSeq, May 2022]

MYBPC3 links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Benign. Variant got -21 ACMG points.

BP4

Computational evidence support a benign effect (BayesDel_noAF=-0.83).

BP6

Variant 11-47347892-G-A is Benign according to our data. Variant chr11-47347892-G-A is described in ClinVar as [Benign]. Clinvar id is 42793.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars. Variant chr11-47347892-G-A is described in Lovd as [Benign]. Variant chr11-47347892-G-A is described in Lovd as [Likely_benign].

BP7

Synonymous conserved (PhyloP=-3.72 with no splicing effect.

BA1

GnomAd4 highest subpopulation (NFE) allele frequency at 95% confidence interval = 0.122 is higher than 0.05.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
MYBPC3	NM_000256.3 link	c.786C>T	p.Thr262Thr	synonymous_variant	Exon 7 of 35	ENST00000545968.6	NP_000247.2	Q14896-1A5YM48

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	UniProt
MYBPC3	ENST00000545968.6 link	c.786C>T	p.Thr262Thr	synonymous_variant	Exon 7 of 35	5	NM_000256.3	ENSP00000442795.1	Q14896-1
MYBPC3	ENST00000399249.6 link	c.786C>T	p.Thr262Thr	synonymous_variant	Exon 7 of 34	5		ENSP00000382193.2	A8MXZ9
MYBPC3	ENST00000544791.1 link	n.786C>T		non_coding_transcript_exon_variant	Exon 7 of 27	5		ENSP00000444259.1	F5GZR4

Frequencies

GnomAD3 genomes

AF:

0.0882

AC:

13420

AN:

152104

Hom.:

712

Cov.:

show subpopulations

Gnomad AFR

AF:

0.0408

Gnomad AMI

AF:

0.0462

Gnomad AMR

AF:

0.0732

Gnomad ASJ

AF:

0.0951

Gnomad EAS

AF:

0.0177

Gnomad SAS

AF:

0.0577

Gnomad FIN

AF:

0.118

Gnomad MID

AF:

0.0886

Gnomad NFE

AF:

0.124

Gnomad OTH

AF:

0.0808

GnomAD3 exomes

AF:

0.0900

AC:

16455

AN:

182798

Hom.:

919

AF XY:

0.0909

AC XY:

8926

AN XY:

98182

show subpopulations

Gnomad AFR exome

AF:

0.0422

Gnomad AMR exome

AF:

0.0456

Gnomad ASJ exome

AF:

0.0918

Gnomad EAS exome

AF:

0.0158

Gnomad SAS exome

AF:

0.0666

Gnomad FIN exome

AF:

0.114

Gnomad NFE exome

AF:

0.126

Gnomad OTH exome

AF:

0.101

GnomAD4 exome

AF:

0.116

AC:

165395

AN:

1419758

Hom.:

10491

Cov.:

AF XY:

0.115

AC XY:

80694

AN XY:

702194

show subpopulations

Gnomad4 AFR exome

AF:

0.0380

Gnomad4 AMR exome

AF:

0.0484

Gnomad4 ASJ exome

AF:

0.0950

Gnomad4 EAS exome

AF:

0.0115

Gnomad4 SAS exome

AF:

0.0676

Gnomad4 FIN exome

AF:

0.123

Gnomad4 NFE exome

AF:

0.129

Gnomad4 OTH exome

AF:

0.106

GnomAD4 genome

AF:

0.0881

AC:

13418

AN:

152222

Hom.:

712

Cov.:

AF XY:

0.0858

AC XY:

6387

AN XY:

74420

show subpopulations

Gnomad4 AFR

AF:

0.0407

Gnomad4 AMR

AF:

0.0730

Gnomad4 ASJ

AF:

0.0951

Gnomad4 EAS

AF:

0.0178

Gnomad4 SAS

AF:

0.0580

Gnomad4 FIN

AF:

0.118

Gnomad4 NFE

AF:

0.124

Gnomad4 OTH

AF:

0.0799

Alfa

AF:

0.112

Hom.:

1402

Bravo

AF:

0.0830

Asia WGS

AF:

0.0400

AC:

139

AN:

3478

ClinVar

Significance: Benign

Submissions summary: Benign:15

Revision: criteria provided, multiple submitters, no conflicts

LINK: link

Submissions by phenotype

not specified

Benign:5

Clinical Genetics, Academic Medical Center

Significance: Benign

Review Status: no assertion criteria provided

Collection Method: clinical testing

- -

PreventionGenetics, part of Exact Sciences

Significance: Benign

Review Status: criteria provided, single submitter

Collection Method: clinical testing

- -

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

Significance: Benign

Review Status: no assertion criteria provided

Collection Method: clinical testing

- -

Jan 18, 2008

Laboratory for Molecular Medicine, Mass General Brigham Personalized Medicine

Significance: Benign

Review Status: criteria provided, single submitter

Collection Method: clinical testing

- -

Jul 08, 2011

GeneDx

Significance: Benign

Review Status: criteria provided, single submitter

Collection Method: clinical testing

This variant is considered likely benign or benign based on one or more of the following criteria: it is a conservative change, it occurs at a poorly conserved position in the protein, it is predicted to be benign by multiple in silico algorithms, and/or has population frequency not consistent with disease. -

Hypertrophic cardiomyopathy 4

Benign:4

Diagnostic Laboratory, Department of Genetics, University Medical Center Groningen

Significance: Benign

Review Status: no assertion criteria provided

Collection Method: clinical testing

- -

Oct 10, 2014

Genome Diagnostics Laboratory, University Medical Center Utrecht

Significance: Benign

Review Status: criteria provided, single submitter

Collection Method: clinical testing

- -

Sep 21, 2015

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

Significance: Benign

Review Status: criteria provided, single submitter

Collection Method: clinical testing

- -

Jan 12, 2018

Illumina Laboratory Services, Illumina

Significance: Benign

Review Status: criteria provided, single submitter

Collection Method: clinical testing

This variant was observed in the ICSL laboratory as part of a predisposition screen in an ostensibly healthy population. It had not been previously curated by ICSL or reported in the Human Gene Mutation Database (HGMD: prior to June 1st, 2018), and was therefore a candidate for classification through an automated scoring system. Utilizing variant allele frequency, disease prevalence and penetrance estimates, and inheritance mode, an automated score was calculated to assess if this variant is too frequent to cause the disease. Based on the score and internal cut-off values, a variant classified as benign is not then subjected to further curation. The score for this variant resulted in a classification of benign for this disease. -

Hypertrophic cardiomyopathy

Benign:2

Feb 04, 2025

Labcorp Genetics (formerly Invitae), Labcorp

Significance: Benign

Review Status: criteria provided, single submitter

Collection Method: clinical testing

- -

Oct 10, 2022

Cohesion Phenomics

Significance: Benign

Review Status: no assertion criteria provided

Collection Method: clinical testing

- -

Left ventricular noncompaction 10

Benign:1

Jan 12, 2018

Illumina Laboratory Services, Illumina

Significance: Benign

Review Status: criteria provided, single submitter

Collection Method: clinical testing

Cardiomyopathy

Benign:1

Mar 16, 2018

Color Diagnostics, LLC DBA Color Health

Significance: Benign

Review Status: criteria provided, single submitter

Collection Method: clinical testing

- -

not provided

Benign:1

Breakthrough Genomics, Breakthrough Genomics

Significance: Benign

Review Status: criteria provided, single submitter

Collection Method: not provided

- -

Cardiovascular phenotype

Benign:1

Mar 11, 2015

Ambry Genetics

Significance: Benign

Review Status: criteria provided, single submitter

Collection Method: clinical testing

This alteration is classified as 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

BayesDel_noAF

Benign

-0.83

CADD

Benign

0.23

DANN

Benign

0.60

Splicing

Name

Calibrated prediction

Score

Prediction

SpliceAI score (max)

0.070

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