rs730880594

Variant summary

Our verdict is Uncertain significance. The variant received 1 ACMG points: 2P and 1B. PM1BP6

The NM_000256.3(MYBPC3):​c.3581C>T​(p.Ala1194Val) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.0000254 in 1,613,776 control chromosomes in the GnomAD database, including 1 homozygotes. Variant has been reported in ClinVar as Conflicting classifications of pathogenicity (no stars). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. A1194T) has been classified as Uncertain significance.

Frequency

Genomes: 𝑓 0.000033 ( 1 hom., cov: 33)
Exomes 𝑓: 0.000025 ( 0 hom. )

Consequence

MYBPC3
NM_000256.3 missense

Scores

2
11
6

Clinical Significance

Conflicting classifications of pathogenicity criteria provided, conflicting classifications U:2B:3

Conservation

PhyloP100: 7.71

Publications

4 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

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Uncertain_significance. The variant received 1 ACMG points.

PM1
In a hotspot region, there are 2 aminoacids with missense pathogenic changes in the window of +-8 aminoacids around while only 1 benign, 14 uncertain in NM_000256.3
BP6
Variant 11-47332612-G-A is Benign according to our data. Variant chr11-47332612-G-A is described in ClinVar as Conflicting_classifications_of_pathogenicity. ClinVar VariationId is 181012.

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.
GeneTranscriptTagsHGVScHGVSpEffectExon RankProteinUniProt
MYBPC3
NM_000256.3
MANE Select
c.3581C>Tp.Ala1194Val
missense
Exon 32 of 35NP_000247.2Q14896-1

Ensembl Transcripts

Sel.
GeneTranscriptTagsHGVScHGVSpEffectExon RankProteinUniProt
MYBPC3
ENST00000545968.6
TSL:5 MANE Select
c.3581C>Tp.Ala1194Val
missense
Exon 32 of 35ENSP00000442795.1Q14896-1
MYBPC3
ENST00000399249.6
TSL:5
c.3581C>Tp.Ala1194Val
missense
Exon 31 of 34ENSP00000382193.2A8MXZ9

Frequencies

GnomAD3 genomes
AF:
0.0000328
AC:
5
AN:
152208
Hom.:
1
Cov.:
33
show subpopulations
Gnomad AFR
AF:
0.0000241
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.000262
Gnomad ASJ
AF:
0.00
Gnomad EAS
AF:
0.00
Gnomad SAS
AF:
0.00
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.00
Gnomad OTH
AF:
0.00
GnomAD2 exomes
AF:
0.000104
AC:
26
AN:
249002
AF XY:
0.0000814
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.000696
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.00000886
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.0000246
AC:
36
AN:
1461568
Hom.:
0
Cov.:
35
AF XY:
0.0000234
AC XY:
17
AN XY:
727066
show subpopulations
African (AFR)
AF:
0.00
AC:
0
AN:
33480
American (AMR)
AF:
0.000559
AC:
25
AN:
44714
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
26136
East Asian (EAS)
AF:
0.00
AC:
0
AN:
39700
South Asian (SAS)
AF:
0.0000348
AC:
3
AN:
86256
European-Finnish (FIN)
AF:
0.0000188
AC:
1
AN:
53298
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
5768
European-Non Finnish (NFE)
AF:
0.00000630
AC:
7
AN:
1111848
Other (OTH)
AF:
0.00
AC:
0
AN:
60368
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.467
Heterozygous variant carriers
0
2
4
6
8
10
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
AF:
0.0000328
AC:
5
AN:
152208
Hom.:
1
Cov.:
33
AF XY:
0.0000134
AC XY:
1
AN XY:
74360
show subpopulations
African (AFR)
AF:
0.0000241
AC:
1
AN:
41454
American (AMR)
AF:
0.000262
AC:
4
AN:
15282
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
3470
East Asian (EAS)
AF:
0.00
AC:
0
AN:
5200
South Asian (SAS)
AF:
0.00
AC:
0
AN:
4834
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
10622
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
316
European-Non Finnish (NFE)
AF:
0.00
AC:
0
AN:
68028
Other (OTH)
AF:
0.00
AC:
0
AN:
2090
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.442
Heterozygous variant carriers
0
0
1
1
2
2
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Genome Het
Genome Hom
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
Alfa
AF:
0.000275
Hom.:
0
Bravo
AF:
0.0000491
ExAC
AF:
0.0000827
AC:
10

ClinVar

ClinVar submissions
Significance:Conflicting classifications of pathogenicity
Revision:criteria provided, conflicting classifications
View on ClinVar
Pathogenic
VUS
Benign
Condition
-
-
1
Cardiomyopathy (1)
-
-
1
Cardiovascular phenotype (1)
-
-
1
Hypertrophic cardiomyopathy (1)
-
1
-
not provided (1)
-
1
-
not specified (1)

Computational scores

Source: dbNSFP v4.9

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Uncertain
0.39
CardioboostCm
Benign
0.0048
BayesDel_addAF
Benign
-0.14
T
BayesDel_noAF
Uncertain
-0.060
CADD
Uncertain
24
DANN
Uncertain
1.0
DEOGEN2
Uncertain
0.65
D
Eigen
Uncertain
0.29
Eigen_PC
Uncertain
0.26
FATHMM_MKL
Pathogenic
0.97
D
LIST_S2
Uncertain
0.93
D
M_CAP
Pathogenic
0.45
D
MetaRNN
Uncertain
0.56
D
MetaSVM
Benign
-0.47
T
MutationAssessor
Benign
0.37
N
PhyloP100
7.7
PrimateAI
Uncertain
0.51
T
PROVEAN
Uncertain
-3.4
D
REVEL
Uncertain
0.36
Sift
Benign
0.14
T
Sift4G
Benign
0.073
T
Vest4
0.72
MVP
0.88
MPC
0.82
ClinPred
0.35
T
GERP RS
5.3
Varity_R
0.28
gMVP
0.74
Mutation Taster
=17/83
disease causing (ClinVar)

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: rs730880594; hg19: chr11-47354163; API