rs200713257

Variant summary

Our verdict is Benign. Variant got -12 ACMG points: 0P and 12B. BP6_Very_StrongBS2

The NM_000256.3(MYBPC3):​c.909C>T​(p.Asp303=) variant causes a splice region, synonymous change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000199 in 1,595,178 control chromosomes in the GnomAD database, including 6 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Likely benign (★★).

Frequency

Genomes: 𝑓 0.00011 ( 1 hom., cov: 31)
Exomes 𝑓: 0.00021 ( 5 hom. )

Consequence

MYBPC3
NM_000256.3 splice_region, synonymous

Scores

2
Splicing: ADA: 0.06407
1

Clinical Significance

Benign/Likely benign criteria provided, multiple submitters, no conflicts B:6

Conservation

PhyloP100: 2.12
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 -12 ACMG points.

BP6
Variant 11-47346644-G-A is Benign according to our data. Variant chr11-47346644-G-A is described in ClinVar as [Likely_benign]. Clinvar id is 188538.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars. Variant chr11-47346644-G-A is described in Lovd as [Likely_benign].
BS2
High Homozygotes in GnomAdExome4 at 5 AD,AR gene

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
MYBPC3NM_000256.3 linkuse as main transcriptc.909C>T p.Asp303= splice_region_variant, synonymous_variant 11/35 ENST00000545968.6 NP_000247.2

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
MYBPC3ENST00000545968.6 linkuse as main transcriptc.909C>T p.Asp303= splice_region_variant, synonymous_variant 11/355 NM_000256.3 ENSP00000442795 P4Q14896-1
MYBPC3ENST00000399249.6 linkuse as main transcriptc.909C>T p.Ser303= synonymous_variant 10/345 ENSP00000382193 A2
MYBPC3ENST00000544791.1 linkuse as main transcriptc.909C>T p.Asp303= splice_region_variant, synonymous_variant, NMD_transcript_variant 11/275 ENSP00000444259

Frequencies

GnomAD3 genomes
AF:
0.000112
AC:
17
AN:
151526
Hom.:
1
Cov.:
31
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:
0.00
Gnomad SAS
AF:
0.00355
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.00
Gnomad OTH
AF:
0.00
GnomAD3 exomes
AF:
0.000391
AC:
91
AN:
232866
Hom.:
1
AF XY:
0.000505
AC XY:
64
AN XY:
126620
show subpopulations
Gnomad AFR exome
AF:
0.0000663
Gnomad AMR exome
AF:
0.00
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad SAS exome
AF:
0.00310
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.00000943
Gnomad OTH exome
AF:
0.000181
GnomAD4 exome
AF:
0.000208
AC:
300
AN:
1443532
Hom.:
5
Cov.:
45
AF XY:
0.000307
AC XY:
220
AN XY:
716988
show subpopulations
Gnomad4 AFR exome
AF:
0.0000306
Gnomad4 AMR exome
AF:
0.00
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.00
Gnomad4 SAS exome
AF:
0.00338
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.00000453
Gnomad4 OTH exome
AF:
0.000151
GnomAD4 genome
AF:
0.000112
AC:
17
AN:
151646
Hom.:
1
Cov.:
31
AF XY:
0.000202
AC XY:
15
AN XY:
74104
show subpopulations
Gnomad4 AFR
AF:
0.00
Gnomad4 AMR
AF:
0.00
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.00355
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.00
Gnomad4 OTH
AF:
0.00
Bravo
AF:
0.0000151
Asia WGS
AF:
0.00115
AC:
4
AN:
3478

ClinVar

Significance: Benign/Likely benign
Submissions summary: Benign:6
Revision: criteria provided, multiple submitters, no conflicts
LINK: link

Submissions by phenotype

Cardiomyopathy Benign:2
Likely benign, criteria provided, single submitterclinical testingColor Diagnostics, LLC DBA Color HealthJun 18, 2018- -
Benign, criteria provided, single submitterclinical testingCHEO Genetics Diagnostic Laboratory, Children's Hospital of Eastern OntarioMay 04, 2023- -
not provided Benign:1
Benign, criteria provided, single submitterclinical testingGeneDxMar 03, 2015- -
Hypertrophic cardiomyopathy Benign:1
Benign, criteria provided, single submitterclinical testingLabcorp Genetics (formerly Invitae), LabcorpJan 31, 2024- -
Cardiovascular phenotype Benign:1
Likely benign, criteria provided, single submitterclinical testingAmbry GeneticsMar 01, 2016This 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. -
MYBPC3-related disorder Benign:1
Likely benign, no assertion criteria providedclinical testingPreventionGenetics, part of Exact SciencesNov 23, 2020This variant is classified as likely benign based on ACMG/AMP sequence variant interpretation guidelines (Richards et al. 2015 PMID: 25741868, with internal and published modifications). -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
BayesDel_noAF
Benign
-0.48
CADD
Benign
16
DANN
Benign
0.90

Splicing

Name
Calibrated prediction
Score
Prediction
dbscSNV1_ADA
Benign
0.064
SpliceAI score (max)
0.23
Details are displayed if max score is > 0.2
DS_AL_spliceai
0.23
Position offset: 0

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: rs200713257; hg19: chr11-47368195; API