rs727504346

Variant summary

Our verdict is Uncertain significance. Variant got 4 ACMG points: 4P and 0B. PM2PM5

The NM_000256.3(MYBPC3):​c.2909G>T​(p.Arg970Leu) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000657 in 152,206 control chromosomes in the GnomAD database, with no homozygous occurrence. 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. R970Q) has been classified as Uncertain significance.

Frequency

Genomes: 𝑓 0.0000066 ( 0 hom., cov: 33)
Exomes 𝑓: 0.0 ( 0 hom. )
Failed GnomAD Quality Control

Consequence

MYBPC3
NM_000256.3 missense

Scores

11
9

Clinical Significance

Not reported in ClinVar

Conservation

PhyloP100: 1.47
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 Uncertain_significance. Variant got 4 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
PM5
Other missense variant is known to change same aminoacid residue: Variant chr11-47334007-C-T is described in Lovd as [Likely_pathogenic].

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
MYBPC3NM_000256.3 linkuse as main transcriptc.2909G>T p.Arg970Leu missense_variant 28/35 ENST00000545968.6

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
MYBPC3ENST00000545968.6 linkuse as main transcriptc.2909G>T p.Arg970Leu missense_variant 28/355 NM_000256.3 P4Q14896-1
MYBPC3ENST00000399249.6 linkuse as main transcriptc.2909G>T p.Arg970Leu missense_variant 27/345 A2

Frequencies

GnomAD3 genomes
AF:
0.00000657
AC:
1
AN:
152206
Hom.:
0
Cov.:
33
show subpopulations
Gnomad AFR
AF:
0.00
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.00
Gnomad ASJ
AF:
0.000288
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
GnomAD4 exome
Data not reliable, filtered out with message: AC0
AF:
0.00
AC:
0
AN:
1422924
Hom.:
0
Cov.:
33
AF XY:
0.00
AC XY:
0
AN XY:
704410
Gnomad4 AFR exome
AF:
0.00
Gnomad4 AMR exome
AF:
0.00
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.00
Gnomad4 SAS exome
AF:
0.00
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.00
Gnomad4 OTH exome
AF:
0.00
GnomAD4 genome
AF:
0.00000657
AC:
1
AN:
152206
Hom.:
0
Cov.:
33
AF XY:
0.00
AC XY:
0
AN XY:
74352
show subpopulations
Gnomad4 AFR
AF:
0.00
Gnomad4 AMR
AF:
0.00
Gnomad4 ASJ
AF:
0.000288
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.00
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.00
Gnomad4 OTH
AF:
0.00
Bravo
AF:
0.00000378

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Uncertain
0.43
CardioboostCm
Benign
0.0052
BayesDel_addAF
Uncertain
0.017
T
BayesDel_noAF
Benign
-0.21
CADD
Uncertain
24
DANN
Uncertain
1.0
DEOGEN2
Uncertain
0.64
D;T;T
Eigen
Uncertain
0.25
Eigen_PC
Uncertain
0.31
FATHMM_MKL
Uncertain
0.94
D
LIST_S2
Benign
0.83
T;T;T
M_CAP
Uncertain
0.19
D
MetaRNN
Uncertain
0.47
T;T;T
MetaSVM
Benign
-0.96
T
MutationAssessor
Benign
1.9
L;.;.
MutationTaster
Benign
1.0
D;D;D
PrimateAI
Uncertain
0.54
T
PROVEAN
Uncertain
-3.7
D;.;D
REVEL
Benign
0.15
Sift
Benign
0.35
T;.;T
Sift4G
Benign
0.18
T;T;T
Vest4
0.57
MVP
0.80
MPC
0.88
ClinPred
0.99
D
GERP RS
5.1
Varity_R
0.41
gMVP
0.79

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

LitVar

Below is the list of publications found by LitVar. It may be empty.

Other links and lift over

dbSNP: rs727504346; hg19: chr11-47355558; API