NM_002465.4:c.1946T>C

Variant names:

Variant summary

Our verdict is Benign. Variant got -9 ACMG points: 0P and 9B. BP4_StrongBP6BS1

The NM_002465.4(MYBPC1):c.1946T>C(p.Val649Ala) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000185 in 1,613,518 control chromosomes in the GnomAD database, including 1 homozygotes. 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 Conflicting classifications of pathogenicity (no stars).

Frequency

Genomes: 𝑓 0.00014 ( 0 hom., cov: 31)

Exomes 𝑓: 0.00019 ( 1 hom. )

Consequence

MYBPC1
NM_002465.4 missense

Scores

Clinical Significance

Conflicting classifications of pathogenicity criteria provided, conflicting classifications U:1B:3

Conservation

PhyloP100: 1.34

Variant links:

Genes affected

MYBPC1 (HGNC:7549): (myosin binding protein C1) This gene encodes a member of the myosin-binding protein C family. Myosin-binding protein C family members are myosin-associated proteins found in the cross-bridge-bearing zone (C region) of A bands in striated muscle. The encoded protein is the slow skeletal muscle isoform of myosin-binding protein C and plays an important role in muscle contraction by recruiting muscle-type creatine kinase to myosin filaments. Mutations in this gene are associated with distal arthrogryposis type I. Alternatively spliced transcript variants encoding multiple isoforms have been observed for this gene. [provided by RefSeq, Dec 2011]

MYBPC1 links:

LOC124902996 (HGNC:):

LOC124902996 links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Benign. Variant got -9 ACMG points.

BP4

Computational evidence support a benign effect (MetaRNN=0.040621877).

BP6

Variant 12-101661176-T-C is Benign according to our data. Variant chr12-101661176-T-C is described in ClinVar as [Conflicting_classifications_of_pathogenicity]. Clinvar id is 211544.We mark this variant Likely_benign, oryginal submissions are: {Likely_benign=3, Uncertain_significance=1}.

BS1

Variant frequency is greater than expected in population amr. gnomad4 allele frequency = 0.000145 (22/152172) while in subpopulation AMR AF= 0.000851 (13/15278). AF 95% confidence interval is 0.000503. There are 0 homozygotes in gnomad4. There are 8 alleles in male gnomad4 subpopulation. Median coverage is 31. This position pass quality control queck.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
MYBPC1	NM_002465.4 link	c.1946T>C	p.Val649Ala	missense_variant	Exon 20 of 32	ENST00000361466.7	NP_002456.2	Q00872-4Q86TA8

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
MYBPC1	ENST00000361466.7 link	c.1946T>C	p.Val649Ala	missense_variant	Exon 20 of 32	1	NM_002465.4	ENSP00000354849.2		Q00872-4
MYBPC1	ENST00000551300.5 link	c.1574T>C	p.Val525Ala	missense_variant	Exon 21 of 32	1		ENSP00000447116.1		G3V1V7

Frequencies

GnomAD3 genomes

AF:

0.000145

AC:

AN:

152172

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.00

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.000851

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:

0.000132

Gnomad OTH

AF:

0.00

GnomAD3 exomes

AF:

0.000111

AC:

AN:

251286

Hom.:

AF XY:

0.000125

AC XY:

AN XY:

135802

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.0000868

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:

0.000211

Gnomad OTH exome

AF:

0.000163

GnomAD4 exome

AF:

0.000189

AC:

276

AN:

1461346

Hom.:

Cov.:

AF XY:

0.000172

AC XY:

125

AN XY:

726994

show subpopulations

Gnomad4 AFR exome

AF:

0.00

Gnomad4 AMR exome

AF:

0.000224

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.00

Gnomad4 SAS exome

AF:

0.00

Gnomad4 FIN exome

AF:

0.0000375

Gnomad4 NFE exome

AF:

0.000227

Gnomad4 OTH exome

AF:

0.000182

GnomAD4 genome

AF:

0.000145

AC:

AN:

152172

Hom.:

Cov.:

AF XY:

0.000108

AC XY:

AN XY:

74360

show subpopulations

Gnomad4 AFR

AF:

0.00

Gnomad4 AMR

AF:

0.000851

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.00

Gnomad4 SAS

AF:

0.00

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.000132

Gnomad4 OTH

AF:

0.00

Alfa

AF:

0.000107

Hom.:

Bravo

AF:

0.000344

TwinsUK

AF:

0.000270

AC:

ALSPAC

AF:

0.000259

AC:

ESP6500AA

AF:

0.00

AC:

ESP6500EA

AF:

0.000349

AC:

ExAC

AF:

0.000115

AC:

EpiCase

AF:

0.000218

EpiControl

AF:

0.000178

ClinVar

Significance: Conflicting classifications of pathogenicity

Submissions summary: Uncertain:1Benign:3

Revision: criteria provided, conflicting classifications

LINK: link

Submissions by phenotype

not provided

Benign:2

Dec 01, 2022

CeGaT Center for Human Genetics Tuebingen

Significance: Likely benign

Review Status: criteria provided, single submitter

Collection Method: clinical testing

MYBPC1: BP4 -

Dec 07, 2019

Labcorp Genetics (formerly Invitae), Labcorp

Significance: Likely benign

Review Status: criteria provided, single submitter

Collection Method: clinical testing

- -

Inborn genetic diseases

Uncertain:1

Apr 28, 2022

Ambry Genetics

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: clinical testing

The c.1946T>C (p.V649A) alteration is located in exon 20 (coding exon 20) of the MYBPC1 gene. This alteration results from a T to C substitution at nucleotide position 1946, causing the valine (V) at amino acid position 649 to be replaced by an alanine (A). Based on insufficient or conflicting evidence, the clinical significance of this alteration remains unclear. -

not specified

Benign:1

Apr 06, 2015

Genetic Services Laboratory, University of Chicago

Significance: Likely benign

Review Status: criteria provided, single submitter

Collection Method: clinical testing

- -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.12

BayesDel_addAF

Benign

-0.36

BayesDel_noAF

Benign

-0.47

CADD

Benign

DANN

Benign

0.90

DEOGEN2

Benign

0.0032

.;.;.;.;.;T;.;.;.;.;.;.;T

Eigen

Benign

-0.45

Eigen_PC

Benign

-0.24

FATHMM_MKL

Benign

0.62

LIST_S2

Benign

0.84

T;T;T;T;T;T;T;T;T;T;T;T;T

M_CAP

Benign

0.012

MetaRNN

Benign

0.041

T;T;T;T;T;T;T;T;T;T;T;T;T

MetaSVM

Benign

-1.0

MutationAssessor

Benign

-0.37

.;N;.;.;.;.;N;N;.;.;.;.;N

PrimateAI

Benign

0.39

PROVEAN

Benign

1.1

N;N;N;N;N;N;N;N;N;N;N;N;N

REVEL

Benign

0.092

Sift

Benign

0.79

T;T;T;T;T;T;T;T;T;T;T;T;T

Sift4G

Benign

0.26

T;T;T;T;T;T;T;T;T;T;T;T;T

Polyphen

0.062, 0.077

.;.;.;.;B;.;B;.;.;.;.;.;B

Vest4

0.24

MVP

0.15

MPC

0.23

ClinPred

0.044

GERP RS

4.1

Varity_R

0.039

gMVP

0.28

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.

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

LitVar

Other links and lift over