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GeneBe

19-50435217-C-T

Variant summary

Our verdict is Likely benign. Variant got -2 ACMG points: 2P and 4B. PM2BP4_Strong

The NM_004533.4(MYBPC2):c.76C>T(p.Pro26Ser) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000018 in 1,332,450 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 16/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.000013 ( 0 hom., cov: 32)
Exomes 𝑓: 0.000019 ( 0 hom. )

Consequence

MYBPC2
NM_004533.4 missense

Scores

19

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: -0.365
Variant links:
Genes affected
MYBPC2 (HGNC:7550): (myosin binding protein C2) This gene encodes a member of the myosin-binding protein C family. This family includes the fast-, slow- and cardiac-type isoforms, each of which is a myosin-associated protein found in the cross-bridge-bearing zone (C region) of A bands in striated muscle. The protein encoded by this locus is referred to as the fast-type isoform. Mutations in the related but distinct genes encoding the slow-type and cardiac-type isoforms have been associated with distal arthrogryposis, type 1 and hypertrophic cardiomyopathy, respectively. [provided by RefSeq, Jul 2012]

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ACMG classification

Classification made for transcript

Verdict is Likely_benign. Variant got -2 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
BP4
Computational evidence support a benign effect (MetaRNN=0.065808654).

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
MYBPC2NM_004533.4 linkuse as main transcriptc.76C>T p.Pro26Ser missense_variant 2/28 ENST00000357701.6

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
MYBPC2ENST00000357701.6 linkuse as main transcriptc.76C>T p.Pro26Ser missense_variant 2/281 NM_004533.4 P1

Frequencies

GnomAD3 genomes
AF:
0.0000131
AC:
2
AN:
152122
Hom.:
0
Cov.:
32
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:
0.00
Gnomad SAS
AF:
0.00
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.0000294
Gnomad OTH
AF:
0.00
GnomAD3 exomes
AF:
0.0000187
AC:
4
AN:
213928
Hom.:
0
AF XY:
0.00
AC XY:
0
AN XY:
116968
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 SAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.0000421
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.0000186
AC:
22
AN:
1180328
Hom.:
0
Cov.:
18
AF XY:
0.0000134
AC XY:
8
AN XY:
598220
show subpopulations
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:
0.0000243
Gnomad4 OTH exome
AF:
0.0000196
GnomAD4 genome
AF:
0.0000131
AC:
2
AN:
152122
Hom.:
0
Cov.:
32
AF XY:
0.0000269
AC XY:
2
AN XY:
74332
show subpopulations
Gnomad4 AFR
AF:
0.00
Gnomad4 AMR
AF:
0.00
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.00
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.0000294
Gnomad4 OTH
AF:
0.00
Alfa
AF:
0.0000386
Hom.:
0
Bravo
AF:
0.00000378
ExAC
AF:
0.00000839
AC:
1

ClinVar

Significance: Uncertain significance
Submissions summary: Uncertain:1
Revision: criteria provided, single submitter
LINK: link

Submissions by phenotype

not specified Uncertain:1
Uncertain significance, criteria provided, single submitterclinical testingAmbry GeneticsApr 26, 2023The c.76C>T (p.P26S) alteration is located in exon 2 (coding exon 2) of the MYBPC2 gene. This alteration results from a C to T substitution at nucleotide position 76, causing the proline (P) at amino acid position 26 to be replaced by a serine (S). Based on insufficient or conflicting evidence, the clinical significance of this alteration remains unclear. -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.11
BayesDel_addAF
Benign
-0.29
T
BayesDel_noAF
Benign
-0.53
Cadd
Benign
7.5
Dann
Benign
0.46
DEOGEN2
Benign
0.0048
T
Eigen
Benign
-1.8
Eigen_PC
Benign
-1.9
FATHMM_MKL
Benign
0.0093
N
LIST_S2
Benign
0.39
T
M_CAP
Benign
0.014
T
MetaRNN
Benign
0.066
T
MetaSVM
Benign
-0.98
T
MutationAssessor
Benign
0.55
N
MutationTaster
Benign
1.0
N
PrimateAI
Benign
0.37
T
PROVEAN
Benign
-0.83
N
REVEL
Benign
0.053
Sift
Benign
0.030
D
Sift4G
Benign
0.071
T
Polyphen
0.022
B
Vest4
0.20
MutPred
0.26
Gain of phosphorylation at P26 (P = 0.0014);
MVP
0.20
MPC
0.14
ClinPred
0.059
T
GERP RS
-5.4
Varity_R
0.022
gMVP
0.056

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: rs779279363; hg19: chr19-50938474; COSMIC: COSV63097745; COSMIC: COSV63097745; API