Variant rs376461745 details in Genebe, Genetics Data Aggregator

Variant summary

Our verdict is Likely pathogenic. Variant got 6 ACMG points: 6P and 0B. PM2PM5PP3_Moderate

The NM_000256.3(MYBPC3):c.818G>T(p.Arg273Leu) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000283 in 1,413,622 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a pathogenic outcome for this variant. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar. Another variant affecting the same amino acid position, but resulting in a different missense (i.e. R273H) has been classified as Likely pathogenic.

Frequency

Genomes: not found (cov: 32)

Exomes 𝑓: 0.0000028 ( 0 hom. )

Consequence

MYBPC3
NM_000256.3 missense

Scores

Clinical Significance

Not reported in ClinVar

Conservation

PhyloP100: 3.42

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:

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ACMG classification

Classification made for transcript

Verdict is Likely_pathogenic. Variant got 6 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

PM5

Other missense variant is known to change same aminoacid residue: Variant chr11-47347860-C-T is described in Lovd as [Likely_pathogenic].

PP3

MetaRNN computational evidence supports a deleterious effect, 0.878

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
MYBPC3	NM_000256.3 linkuse as main transcript	c.818G>T	p.Arg273Leu	missense_variant	7/35	ENST00000545968.6	NP_000247.2

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris	UniProt
MYBPC3	ENST00000545968.6 linkuse as main transcript	c.818G>T	p.Arg273Leu	missense_variant	7/35	5	NM_000256.3	ENSP00000442795	P4	Q14896-1
MYBPC3	ENST00000399249.6 linkuse as main transcript	c.818G>T	p.Arg273Leu	missense_variant	7/34	5		ENSP00000382193	A2
MYBPC3	ENST00000544791.1 linkuse as main transcript	c.818G>T	p.Arg273Leu	missense_variant, NMD_transcript_variant	7/27	5		ENSP00000444259

Frequencies

GnomAD3 genomes

Cov.:

GnomAD3 exomes

AF:

0.00000574

AC:

AN:

174260

Hom.:

AF XY:

0.0000107

AC XY:

AN XY:

93312

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 SAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.0000137

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.00000283

AC:

AN:

1413622

Hom.:

Cov.:

AF XY:

0.00000286

AC XY:

AN XY:

698642

show subpopulations

Gnomad4 AFR exome

AF:

0.00

Gnomad4 AMR exome

AF:

0.00

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.00

Gnomad4 SAS exome

AF:

0.00

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.00000276

Gnomad4 OTH exome

AF:

0.00

GnomAD4 genome

Cov.:

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Uncertain

0.37

CardioboostCm

Uncertain

0.29

BayesDel_addAF

Pathogenic

0.18

BayesDel_noAF

Uncertain

0.020

CADD

Uncertain

DANN

Uncertain

1.0

DEOGEN2

Uncertain

0.67

D;T;T

Eigen

Uncertain

0.52

Eigen_PC

Uncertain

0.49

FATHMM_MKL

Uncertain

0.93

LIST_S2

Uncertain

0.89

D;D;D

M_CAP

Pathogenic

0.33

MetaRNN

Pathogenic

0.88

D;D;D

MetaSVM

Uncertain

-0.24

MutationAssessor

Pathogenic

3.1

M;.;.

MutationTaster

Benign

1.0

D;D;D

PrimateAI

Uncertain

0.56

PROVEAN

Pathogenic

-4.4

D;D;D

REVEL

Uncertain

0.41

Sift

Uncertain

0.0030

D;D;D

Sift4G

Uncertain

0.0020

D;D;D

Polyphen

0.93

P;.;.

Vest4

0.81

MutPred

0.70

Loss of disorder (P = 0.0449);Loss of disorder (P = 0.0449);Loss of disorder (P = 0.0449);

MVP

0.86

MPC

0.78

ClinPred

0.98

GERP RS

4.6

Varity_R

0.57

gMVP

0.66

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

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

Computational scores

Splicing

Publications

LitVar

Other links and lift over