rs201098973

Variant summary

Our verdict is Uncertain significance. The variant received 0 ACMG points: 2P and 2B. PM1BP4_Moderate

The NM_000256.3(MYBPC3):​c.646G>T​(p.Ala216Ser) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000413 in 1,452,890 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 18/23 in silico tools predict a benign 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. A216T) has been classified as Benign.

Frequency

Genomes: not found (cov: 32)
Exomes 𝑓: 0.0000041 ( 0 hom. )

Consequence

MYBPC3
NM_000256.3 missense

Scores

1
19

Clinical Significance

Not reported in ClinVar

Conservation

PhyloP100: 0.698

Publications

14 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: Ambry Genetics, G2P, Labcorp Genetics (formerly Invitae)
  • left ventricular noncompaction 10
    Inheritance: AR, AD 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
  • dilated cardiomyopathy
    Inheritance: AD Classification: LIMITED Submitted by: ClinGen

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Uncertain_significance. The variant received 0 ACMG points.

PM1
In a hotspot region, there are 3 aminoacids with missense pathogenic changes in the window of +-8 aminoacids around while only 4 benign, 19 uncertain in NM_000256.3
BP4
Computational evidence support a benign effect (MetaRNN=0.12170273).

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
MYBPC3NM_000256.3 linkc.646G>T p.Ala216Ser missense_variant Exon 5 of 35 ENST00000545968.6 NP_000247.2

Ensembl

Gene Transcript HGVSc HGVSp Effect Exon rank TSL MANE Protein Appris UniProt
MYBPC3ENST00000545968.6 linkc.646G>T p.Ala216Ser missense_variant Exon 5 of 35 5 NM_000256.3 ENSP00000442795.1
MYBPC3ENST00000399249.6 linkc.646G>T p.Ala216Ser missense_variant Exon 5 of 34 5 ENSP00000382193.2
MYBPC3ENST00000544791.1 linkn.646G>T non_coding_transcript_exon_variant Exon 5 of 27 5 ENSP00000444259.1

Frequencies

GnomAD3 genomes
Cov.:
32
GnomAD2 exomes
AF:
0.00000416
AC:
1
AN:
240270
AF XY:
0.00000762
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 FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.00
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.00000413
AC:
6
AN:
1452890
Hom.:
0
Cov.:
31
AF XY:
0.00000553
AC XY:
4
AN XY:
723034
show subpopulations
African (AFR)
AF:
0.00
AC:
0
AN:
33452
American (AMR)
AF:
0.00
AC:
0
AN:
44598
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
26054
East Asian (EAS)
AF:
0.00
AC:
0
AN:
39684
South Asian (SAS)
AF:
0.0000466
AC:
4
AN:
85906
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
45698
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
5640
European-Non Finnish (NFE)
AF:
0.00000180
AC:
2
AN:
1111568
Other (OTH)
AF:
0.00
AC:
0
AN:
60290
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.483
Heterozygous variant carriers
0
1
2
2
3
4
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Exome Het
Variant carriers
0
2
4
6
8
10
<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
Cov.:
32
Alfa
AF:
0.00
Hom.:
1
Bravo
AF:
0.00000378

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.11
CardioboostCm
Benign
0.00032
BayesDel_addAF
Benign
-0.24
T
BayesDel_noAF
Benign
-0.48
CADD
Benign
12
DANN
Benign
0.42
DEOGEN2
Benign
0.11
T;T;T
Eigen
Benign
-0.85
Eigen_PC
Benign
-0.83
FATHMM_MKL
Benign
0.67
D
LIST_S2
Uncertain
0.87
D;D;D
M_CAP
Benign
0.071
D
MetaRNN
Benign
0.12
T;T;T
MetaSVM
Benign
-0.97
T
MutationAssessor
Benign
1.2
L;.;.
PhyloP100
0.70
PrimateAI
Benign
0.31
T
PROVEAN
Benign
0.60
N;N;N
REVEL
Benign
0.11
Sift
Benign
0.49
T;T;T
Sift4G
Benign
0.75
T;T;T
Polyphen
0.0
B;.;.
Vest4
0.22
MutPred
0.55
Gain of disorder (P = 0.0221);Gain of disorder (P = 0.0221);Gain of disorder (P = 0.0221);
MVP
0.67
MPC
0.20
ClinPred
0.017
T
GERP RS
-1.1
Varity_R
0.11
gMVP
0.61
Mutation Taster
=91/9
polymorphism

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

Other links and lift over

dbSNP: rs201098973; hg19: chr11-47371333; API