rs727504418

Variant summary

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

The NM_000256.3(MYBPC3):​c.2671C>T​(p.Arg891Trp) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000185 in 1,564,140 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a pathogenic 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. R891Q) has been classified as Uncertain significance.

Frequency

Genomes: 𝑓 0.0000066 ( 0 hom., cov: 30)
Exomes 𝑓: 0.000020 ( 0 hom. )

Consequence

MYBPC3
NM_000256.3 missense

Scores

7
11
1

Clinical Significance

Uncertain significance criteria provided, multiple submitters, no conflicts U:9

Conservation

PhyloP100: 1.62

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: 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 1 ACMG points.

PP3
MetaRNN computational evidence supports a deleterious effect, 0.824

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

Selected
GeneTranscriptTagsHGVScHGVSpEffectExon RankProteinUniProt
MYBPC3
NM_000256.3
MANE Select
c.2671C>Tp.Arg891Trp
missense
Exon 26 of 35NP_000247.2

Ensembl Transcripts

Selected
GeneTranscriptTagsHGVScHGVSpEffectExon RankProteinUniProt
MYBPC3
ENST00000545968.6
TSL:5 MANE Select
c.2671C>Tp.Arg891Trp
missense
Exon 26 of 35ENSP00000442795.1
MYBPC3
ENST00000399249.6
TSL:5
c.2671C>Tp.Arg891Trp
missense
Exon 25 of 34ENSP00000382193.2
MYBPC3
ENST00000544791.1
TSL:5
n.*176C>T
non_coding_transcript_exon
Exon 26 of 27ENSP00000444259.1

Frequencies

GnomAD3 genomes
AF:
0.00000657
AC:
1
AN:
152182
Hom.:
0
Cov.:
30
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:
0.000193
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:
0.0000263
AC:
5
AN:
189998
AF XY:
0.0000193
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.00
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.000148
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.0000235
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.0000198
AC:
28
AN:
1411958
Hom.:
0
Cov.:
34
AF XY:
0.0000186
AC XY:
13
AN XY:
698430
show subpopulations
African (AFR)
AF:
0.00
AC:
0
AN:
31686
American (AMR)
AF:
0.00
AC:
0
AN:
37934
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
24662
East Asian (EAS)
AF:
0.000406
AC:
15
AN:
36924
South Asian (SAS)
AF:
0.0000378
AC:
3
AN:
79270
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
51098
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
4506
European-Non Finnish (NFE)
AF:
0.00000919
AC:
10
AN:
1087606
Other (OTH)
AF:
0.00
AC:
0
AN:
58272
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.455
Heterozygous variant carriers
0
2
3
5
6
8
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:
0.00000657
AC:
1
AN:
152182
Hom.:
0
Cov.:
30
AF XY:
0.0000135
AC XY:
1
AN XY:
74338
show subpopulations
African (AFR)
AF:
0.00
AC:
0
AN:
41444
American (AMR)
AF:
0.00
AC:
0
AN:
15278
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
3468
East Asian (EAS)
AF:
0.000193
AC:
1
AN:
5190
South Asian (SAS)
AF:
0.00
AC:
0
AN:
4832
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
10620
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:
2094
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.575
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
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:
0.0000172
Hom.:
1
ExAC
AF:
0.0000166
AC:
2
Asia WGS
AF:
0.000289
AC:
1
AN:
3478

ClinVar

ClinVar submissions as Germline

Significance:Uncertain significance
Revision:criteria provided, multiple submitters, no conflicts
View on ClinVar
Pathogenic
VUS
Benign
Condition
-
3
-
not provided (3)
-
2
-
Hypertrophic cardiomyopathy (2)
-
1
-
Cardiomyopathy (1)
-
1
-
Cardiovascular phenotype (1)
-
1
-
Hypertrophic cardiomyopathy 4;C3715165:Left ventricular noncompaction 10 (1)
-
1
-
not specified (1)

Computational scores

Source: dbNSFP v4.9

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.31
CardioboostCm
Pathogenic
0.93
BayesDel_addAF
Uncertain
0.14
D
BayesDel_noAF
Uncertain
-0.040
CADD
Uncertain
24
DANN
Pathogenic
1.0
DEOGEN2
Uncertain
0.43
T
Eigen
Uncertain
0.47
Eigen_PC
Uncertain
0.31
FATHMM_MKL
Uncertain
0.80
D
LIST_S2
Pathogenic
0.99
D
M_CAP
Uncertain
0.21
D
MetaRNN
Pathogenic
0.82
D
MetaSVM
Uncertain
0.052
D
MutationAssessor
Pathogenic
3.4
M
PhyloP100
1.6
PrimateAI
Uncertain
0.74
T
PROVEAN
Pathogenic
-6.5
D
REVEL
Uncertain
0.51
Sift
Uncertain
0.0010
D
Sift4G
Pathogenic
0.0010
D
Vest4
0.96
MVP
0.87
MPC
0.84
ClinPred
0.94
D
GERP RS
-0.88
Varity_R
0.62
gMVP
0.74
Mutation Taster
=4/96
disease causing

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: rs727504418; hg19: chr11-47357494; COSMIC: COSV57022629; API