rs727504346

Variant summary

Our verdict is Uncertain significance. The variant received 1 ACMG points: 1P and 0B. PP3

The NM_000256.3(MYBPC3):​c.2909G>A​(p.Arg970Gln) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000857 in 1,575,132 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 Uncertain significance (★★). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. R970W) has been classified as Uncertain significance.

Frequency

Genomes: 𝑓 0.000039 ( 0 hom., cov: 33)
Exomes 𝑓: 0.000091 ( 0 hom. )

Consequence

MYBPC3
NM_000256.3 missense

Scores

5
14

Clinical Significance

Uncertain significance criteria provided, multiple submitters, no conflicts U:15

Conservation

PhyloP100: 1.47

Publications

7 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.

PP3
Splicing predictors support a deleterious effect. Scorers claiming Pathogenic: max_spliceai. No scorers claiming Uncertain. No scorers claiming Benign.

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.2909G>Ap.Arg970Gln
missense
Exon 28 of 35NP_000247.2Q14896-1

Ensembl Transcripts

Sel.
GeneTranscriptTagsHGVScHGVSpEffectExon RankProteinUniProt
MYBPC3
ENST00000545968.6
TSL:5 MANE Select
c.2909G>Ap.Arg970Gln
missense
Exon 28 of 35ENSP00000442795.1Q14896-1
MYBPC3
ENST00000399249.6
TSL:5
c.2909G>Ap.Arg970Gln
missense
Exon 27 of 34ENSP00000382193.2A8MXZ9

Frequencies

GnomAD3 genomes
AF:
0.0000394
AC:
6
AN:
152206
Hom.:
0
Cov.:
33
show subpopulations
Gnomad AFR
AF:
0.00
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.000196
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:
0.0000441
Gnomad OTH
AF:
0.00
GnomAD2 exomes
AF:
0.0000541
AC:
10
AN:
184920
AF XY:
0.0000603
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.000181
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.0000641
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.0000907
AC:
129
AN:
1422926
Hom.:
0
Cov.:
33
AF XY:
0.0000752
AC XY:
53
AN XY:
704410
show subpopulations
African (AFR)
AF:
0.0000612
AC:
2
AN:
32666
American (AMR)
AF:
0.000128
AC:
5
AN:
38970
Ashkenazi Jewish (ASJ)
AF:
0.0000393
AC:
1
AN:
25472
East Asian (EAS)
AF:
0.0000267
AC:
1
AN:
37470
South Asian (SAS)
AF:
0.00
AC:
0
AN:
80956
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
50372
Middle Eastern (MID)
AF:
0.000525
AC:
3
AN:
5714
European-Non Finnish (NFE)
AF:
0.000102
AC:
111
AN:
1092406
Other (OTH)
AF:
0.000102
AC:
6
AN:
58900
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.458
Heterozygous variant carriers
0
7
14
22
29
36
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Exome Het
Variant carriers
0
10
20
30
40
50
<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:
0.0000394
AC:
6
AN:
152206
Hom.:
0
Cov.:
33
AF XY:
0.00
AC XY:
0
AN XY:
74352
show subpopulations
African (AFR)
AF:
0.00
AC:
0
AN:
41450
American (AMR)
AF:
0.000196
AC:
3
AN:
15290
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
3472
East Asian (EAS)
AF:
0.00
AC:
0
AN:
5192
South Asian (SAS)
AF:
0.00
AC:
0
AN:
4836
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
10616
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
316
European-Non Finnish (NFE)
AF:
0.0000441
AC:
3
AN:
68032
Other (OTH)
AF:
0.00
AC:
0
AN:
2090
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.475
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

Genome 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
Alfa
AF:
0.0000212
Hom.:
0
Bravo
AF:
0.0000491
ExAC
AF:
0.0000168
AC:
2

ClinVar

ClinVar submissions
Significance:Uncertain significance
Revision:criteria provided, multiple submitters, no conflicts
View on ClinVar
Pathogenic
VUS
Benign
Condition
-
8
-
not provided (8)
-
2
-
Cardiomyopathy (2)
-
2
-
Hypertrophic cardiomyopathy (2)
-
1
-
Cardiovascular phenotype (1)
-
1
-
Left ventricular noncompaction (1)
-
1
-
not specified (1)

Computational scores

Source: dbNSFP v4.9

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.20
CardioboostCm
Benign
0.017
BayesDel_addAF
Benign
-0.082
T
BayesDel_noAF
Uncertain
-0.080
CADD
Pathogenic
32
DANN
Uncertain
0.99
DEOGEN2
Benign
0.14
T
Eigen
Benign
-0.080
Eigen_PC
Benign
0.090
FATHMM_MKL
Uncertain
0.87
D
LIST_S2
Uncertain
0.88
D
M_CAP
Uncertain
0.13
D
MetaRNN
Benign
0.36
T
MetaSVM
Benign
-1.0
T
MutationAssessor
Benign
1.8
L
PhyloP100
1.5
PrimateAI
Benign
0.46
T
PROVEAN
Benign
-1.2
N
REVEL
Benign
0.15
Sift
Benign
0.63
T
Sift4G
Benign
0.37
T
Vest4
0.78
MVP
0.82
MPC
0.81
ClinPred
0.31
T
GERP RS
5.1
Varity_R
0.19
gMVP
0.71
Mutation Taster
=8/92
disease causing

Splicing

Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
0.54
Details are displayed if max score is > 0.2
DS_AG_spliceai
0.54
Position offset: -2

Find out detailed SpliceAI scores and Pangolin per-transcript scores at spliceailookup.broadinstitute.org

Publications

Other links and lift over

dbSNP: rs727504346; hg19: chr11-47355558; COSMIC: COSV99919705; COSMIC: COSV99919705; API