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GeneBe

19-50435859-A-T

Variant summary

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

The NM_004533.4(MYBPC2):c.193A>T(p.Thr65Ser) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000471 in 1,590,874 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 15/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.000020 ( 0 hom., cov: 32)
Exomes 𝑓: 0.000050 ( 0 hom. )

Consequence

MYBPC2
NM_004533.4 missense

Scores

1
18

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 0.893
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=0.018422306).

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
MYBPC2NM_004533.4 linkuse as main transcriptc.193A>T p.Thr65Ser missense_variant 3/28 ENST00000357701.6

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
MYBPC2ENST00000357701.6 linkuse as main transcriptc.193A>T p.Thr65Ser missense_variant 3/281 NM_004533.4 P1

Frequencies

GnomAD3 genomes
AF:
0.0000197
AC:
3
AN:
152074
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:
0.000622
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.00
Gnomad OTH
AF:
0.00
GnomAD3 exomes
AF:
0.000126
AC:
26
AN:
206688
Hom.:
0
AF XY:
0.000161
AC XY:
18
AN XY:
112010
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:
0.000999
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.00
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.0000500
AC:
72
AN:
1438682
Hom.:
0
Cov.:
32
AF XY:
0.0000743
AC XY:
53
AN XY:
713290
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:
0.000848
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.00
Gnomad4 OTH exome
AF:
0.0000168
GnomAD4 genome
AF:
0.0000197
AC:
3
AN:
152192
Hom.:
0
Cov.:
32
AF XY:
0.0000403
AC XY:
3
AN XY:
74416
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:
0.000623
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.00
Gnomad4 OTH
AF:
0.00
Bravo
AF:
0.00000378
ExAC
AF:
0.0000915
AC:
11

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 GeneticsJun 09, 2022The c.193A>T (p.T65S) alteration is located in exon 3 (coding exon 3) of the MYBPC2 gene. This alteration results from a A to T substitution at nucleotide position 193, causing the threonine (T) at amino acid position 65 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
0.25
BayesDel_addAF
Benign
-0.63
T
BayesDel_noAF
Benign
-0.73
Cadd
Benign
15
Dann
Benign
0.77
DEOGEN2
Benign
0.0027
T
Eigen
Benign
-0.85
Eigen_PC
Benign
-0.74
FATHMM_MKL
Uncertain
0.81
D
LIST_S2
Benign
0.39
T
M_CAP
Benign
0.023
T
MetaRNN
Benign
0.018
T
MetaSVM
Benign
-1.0
T
MutationAssessor
Benign
-0.14
N
MutationTaster
Benign
0.99
N
PrimateAI
Benign
0.41
T
PROVEAN
Benign
-0.95
N
REVEL
Benign
0.028
Sift
Benign
0.51
T
Sift4G
Benign
0.69
T
Polyphen
0.0
B
Vest4
0.093
MutPred
0.21
Gain of phosphorylation at T65 (P = 0.0662);
MVP
0.42
MPC
0.12
ClinPred
0.0083
T
GERP RS
1.2
Varity_R
0.039
gMVP
0.044

Splicing

Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
0.020
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: rs749073832; hg19: chr19-50939116; API