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GeneBe

rs780768974

Variant summary

Our verdict is Benign. Variant got -13 ACMG points: 0P and 13B. BP4_StrongBP6_Very_StrongBP7

The NM_000256.3(MYBPC3):​c.363G>A​(p.Pro121=) variant causes a synonymous change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000283 in 1,552,488 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Likely benign (★★).

Frequency

Genomes: 𝑓 0.000033 ( 0 hom., cov: 32)
Exomes 𝑓: 0.000028 ( 0 hom. )

Consequence

MYBPC3
NM_000256.3 synonymous

Scores

2

Clinical Significance

Likely benign criteria provided, multiple submitters, no conflicts B:5

Conservation

PhyloP100: -3.18
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]

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ACMG classification

Classification made for transcript

Verdict is Benign. Variant got -13 ACMG points.

BP4
Computational evidence support a benign effect (BayesDel_noAF=-0.73).
BP6
Variant 11-47350545-C-T is Benign according to our data. Variant chr11-47350545-C-T is described in ClinVar as [Likely_benign]. Clinvar id is 454330.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars. Variant chr11-47350545-C-T is described in Lovd as [Likely_benign].
BP7
Synonymous conserved (PhyloP=-3.18 with no splicing effect.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
MYBPC3NM_000256.3 linkuse as main transcriptc.363G>A p.Pro121= synonymous_variant 3/35 ENST00000545968.6

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
MYBPC3ENST00000545968.6 linkuse as main transcriptc.363G>A p.Pro121= synonymous_variant 3/355 NM_000256.3 P4Q14896-1
MYBPC3ENST00000399249.6 linkuse as main transcriptc.363G>A p.Pro121= synonymous_variant 3/345 A2
MYBPC3ENST00000544791.1 linkuse as main transcriptc.363G>A p.Pro121= synonymous_variant, NMD_transcript_variant 3/275

Frequencies

GnomAD3 genomes
AF:
0.0000329
AC:
5
AN:
152156
Hom.:
0
Cov.:
32
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:
0.000192
Gnomad SAS
AF:
0.00
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.0000294
Gnomad OTH
AF:
0.000956
GnomAD3 exomes
AF:
0.0000368
AC:
6
AN:
162972
Hom.:
0
AF XY:
0.0000446
AC XY:
4
AN XY:
89620
show subpopulations
Gnomad AFR exome
AF:
0.000107
Gnomad AMR exome
AF:
0.00
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.000176
Gnomad SAS exome
AF:
0.000141
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.00
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.0000279
AC:
39
AN:
1400332
Hom.:
0
Cov.:
31
AF XY:
0.0000274
AC XY:
19
AN XY:
693994
show subpopulations
Gnomad4 AFR exome
AF:
0.00
Gnomad4 AMR exome
AF:
0.0000338
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.0000807
Gnomad4 SAS exome
AF:
0.000116
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.0000221
Gnomad4 OTH exome
AF:
0.0000346
GnomAD4 genome
AF:
0.0000329
AC:
5
AN:
152156
Hom.:
0
Cov.:
32
AF XY:
0.0000673
AC XY:
5
AN XY:
74334
show subpopulations
Gnomad4 AFR
AF:
0.00
Gnomad4 AMR
AF:
0.00
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.000192
Gnomad4 SAS
AF:
0.00
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.0000294
Gnomad4 OTH
AF:
0.000956
Alfa
AF:
0.0000329
Hom.:
0
Bravo
AF:
0.0000567

ClinVar

Significance: Likely benign
Submissions summary: Benign:5
Revision: criteria provided, multiple submitters, no conflicts
LINK: link

Submissions by phenotype

Hypertrophic cardiomyopathy Benign:2
Likely benign, criteria provided, single submitterclinical testingInvitaeOct 30, 2022- -
Likely benign, criteria provided, single submitterclinical testingAll of Us Research Program, National Institutes of HealthDec 01, 2023- -
Cardiomyopathy Benign:1
Likely benign, criteria provided, single submitterclinical testingColor Diagnostics, LLC DBA Color HealthJul 02, 2019- -
not provided Benign:1
Likely benign, criteria provided, single submitterclinical testingGeneDxMar 29, 2019- -
Cardiovascular phenotype Benign:1
Likely benign, criteria provided, single submitterclinical testingAmbry GeneticsApr 05, 2023This 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
BayesDel_noAF
Benign
-0.73
CADD
Benign
6.1
DANN
Benign
0.66

Splicing

Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
0.0
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.

Other links and lift over

dbSNP: rs780768974; hg19: chr11-47372096; COSMIC: COSV57028269; COSMIC: COSV57028269; API