NM_000256.3:c.624G>C

Variant names:

Variant summary

Our verdict is Benign. The variant received -7 ACMG points: 0P and 7B. BP4_ModerateBP6BS2

The NM_000256.3(MYBPC3):c.624G>C(p.Gln208His) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00013 in 1,609,666 control chromosomes in the GnomAD database, including 3 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Conflicting classifications of pathogenicity (no stars). The gene MYBPC3 is included in the ClinGen Criteria Specification Registry.

Frequency

Genomes: 𝑓 0.00020 ( 0 hom., cov: 32)

Exomes 𝑓: 0.00012 ( 3 hom. )

Consequence

MYBPC3
NM_000256.3 missense

Scores

Clinical Significance

Conflicting classifications of pathogenicity criteria provided, conflicting classifications U:10B:8

Conservation

PhyloP100: 2.78

Publications

8 publications found

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 Gene-Disease associations (from GenCC):

hypertrophic cardiomyopathy
Inheritance: AD Classification: DEFINITIVE Submitted by: ClinGen
hypertrophic cardiomyopathy 4
Inheritance: AD, AR Classification: DEFINITIVE, STRONG Submitted by: G2P, Ambry Genetics, Labcorp Genetics (formerly Invitae)
left ventricular noncompaction 10
Inheritance: AD, AR Classification: DEFINITIVE, MODERATE, LIMITED Submitted by: Ambry Genetics
familial isolated dilated cardiomyopathy
Inheritance: AD Classification: SUPPORTIVE Submitted by: Orphanet
arrhythmogenic right ventricular cardiomyopathy
Inheritance: AD Classification: LIMITED Submitted by: ClinGen
atrial fibrillation
Inheritance: AD Classification: LIMITED Submitted by: Ambry Genetics
congenital heart disease
Inheritance: AD Classification: LIMITED Submitted by: ClinGen
dilated cardiomyopathy
Inheritance: AR, AD Classification: LIMITED Submitted by: ClinGen

MYBPC3 links:

Genome browser will be placed here

ACMG classification

Specifications for MYBPC3 are available in the ClinGen Criteria Specification Registry and recommended for reference when assigning criteria.

Classification was made for transcript

Our verdict: Benign. The variant received -7 ACMG points.

BP4

Computational evidence support a benign effect (MetaRNN=0.17741412).

BP6

Variant 11-47349804-C-G is Benign according to our data. Variant chr11-47349804-C-G is described in ClinVar as Conflicting_classifications_of_pathogenicity. ClinVar VariationId is 42775.

BS2

High Homozygotes in GnomAdExome4 at 3 AD,AR gene

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_000256.3. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	MYBPC3	NM_000256.3	MANE Select	c.624G>C	p.Gln208His	missense	Exon 5 of 35	NP_000247.2	Q14896-1

Ensembl Transcripts

Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
MYBPC3	ENST00000545968.6	TSL:5 MANE Select	c.624G>C	p.Gln208His	missense	Exon 5 of 35	ENSP00000442795.1	Q14896-1
MYBPC3	ENST00000399249.6	TSL:5	c.624G>C	p.Gln208His	missense	Exon 5 of 34	ENSP00000382193.2	A8MXZ9
MYBPC3	ENST00000544791.1	TSL:5	n.624G>C		non_coding_transcript_exon	Exon 5 of 27	ENSP00000444259.1	F5GZR4

Frequencies

GnomAD3 genomes

AF:

0.000197

AC:

AN:

152274

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.0000241

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.00

Gnomad ASJ

AF:

0.00577

Gnomad EAS

AF:

0.00

Gnomad SAS

AF:

0.000207

Gnomad FIN

AF:

0.00

Gnomad MID

AF:

0.0127

Gnomad NFE

AF:

0.0000588

Gnomad OTH

AF:

0.00

GnomAD2 exomes

AF:

0.000226

AC:

AN:

243714

AF XY:

0.000196

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.00

Gnomad ASJ exome

AF:

0.00443

Gnomad EAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.0000717

Gnomad OTH exome

AF:

0.000334

GnomAD4 exome

AF:

0.000123

AC:

179

AN:

1457274

Hom.:

Cov.:

AF XY:

0.000135

AC XY:

AN XY:

725098

show subpopulations

African (AFR)

AF:

0.0000299

AC:

AN:

33464

American (AMR)

AF:

0.00

AC:

AN:

44632

Ashkenazi Jewish (ASJ)

AF:

0.00491

AC:

128

AN:

26072

East Asian (EAS)

AF:

0.00

AC:

AN:

39694

South Asian (SAS)

AF:

0.0000232

AC:

AN:

86066

European-Finnish (FIN)

AF:

0.00

AC:

AN:

49598

Middle Eastern (MID)

AF:

0.00244

AC:

AN:

5746

European-Non Finnish (NFE)

AF:

0.0000135

AC:

AN:

1111672

Other (OTH)

AF:

0.000315

AC:

AN:

60330

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.489

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Exome Het

Variant carriers

<30

30-35

35-40

40-45

45-50

50-55

55-60

60-65

65-70

70-75

75-80

>80

Age

GnomAD4 genome

AF:

0.000197

AC:

AN:

152392

Hom.:

Cov.:

AF XY:

0.000188

AC XY:

AN XY:

74526

show subpopulations

African (AFR)

AF:

0.0000240

AC:

AN:

41602

American (AMR)

AF:

0.00

AC:

AN:

15314

Ashkenazi Jewish (ASJ)

AF:

0.00577

AC:

AN:

3468

East Asian (EAS)

AF:

0.00

AC:

AN:

5182

South Asian (SAS)

AF:

0.000207

AC:

AN:

4834

European-Finnish (FIN)

AF:

0.00

AC:

AN:

10630

Middle Eastern (MID)

AF:

0.0136

AC:

AN:

294

European-Non Finnish (NFE)

AF:

0.0000588

AC:

AN:

68040

Other (OTH)

AF:

0.00

AC:

AN:

2116

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.500

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Genome Het

Variant carriers

<30

30-35

35-40

40-45

45-50

50-55

55-60

60-65

65-70

70-75

75-80

>80

Age

Alfa

AF:

0.000496

Hom.:

Bravo

AF:

0.000136

ESP6500AA

AF:

0.00

AC:

ESP6500EA

AF:

0.000593

AC:

ExAC

AF:

0.000157

AC:

Asia WGS

AF:

0.000289

AC:

AN:

3478

EpiCase

AF:

0.00

EpiControl

AF:

0.000119

ClinVar

ClinVar submissions

Significance:Conflicting classifications of pathogenicity

Revision:criteria provided, conflicting classifications

View on ClinVar

Pathogenic

VUS

Benign

Condition

not specified (4)

Hypertrophic cardiomyopathy (3)

not provided (3)

Cardiomyopathy (2)

Hypertrophic cardiomyopathy 4 (2)

Cardiovascular phenotype (1)

Hypertrophic cardiomyopathy 4;C3715165:Left ventricular noncompaction 10 (1)

Left ventricular noncompaction 10 (1)

Primary familial hypertrophic cardiomyopathy (1)

Computational scores

Source: dbNSFP v4.9

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.34

CardioboostCm

Uncertain

0.38

BayesDel_addAF

Pathogenic

0.16

BayesDel_noAF

Pathogenic

0.19

CADD

Benign

(source)

DANN

Uncertain

1.0

DEOGEN2

Uncertain

0.62

Eigen

Uncertain

0.65

Eigen_PC

Uncertain

0.57

FATHMM_MKL

Uncertain

0.97

LIST_S2

Uncertain

0.89

M_CAP

Uncertain

0.27

MetaRNN

Benign

0.18

MetaSVM

Uncertain

0.21

MutationAssessor

Uncertain

2.5

PhyloP100

2.8

PrimateAI

Uncertain

0.61

PROVEAN

Uncertain

-3.9

REVEL

Uncertain

0.61

Sift

Uncertain

0.0020

Sift4G

Uncertain

0.0070

Polyphen

1.0

Vest4

0.93

MutPred

0.51

Gain of disorder (P = 0.0933)

MVP

0.92

MPC

0.80

ClinPred

0.31

GERP RS

4.8

Varity_R

0.44

gMVP

0.70

Mutation Taster

=13/87

disease causing

(source)

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

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Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

Publications

ACMG classification

Variant Effect in Transcripts

RefSeq Transcripts

Ensembl Transcripts

Frequencies

Age Distribution

Age Distribution

ClinVar

Computational scores

Splicing

Publications

Other links and lift over