12-101661240-C-T

Variant summary

Our verdict is Benign. Variant got -21 ACMG points: 0P and 21B. BP4_StrongBP6_Very_StrongBP7BS1BS2

The NM_002465.4(MYBPC1):​c.2010C>T​(p.Tyr670Tyr) variant causes a synonymous change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00153 in 1,612,084 control chromosomes in the GnomAD database, including 29 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Likely benign (★★).

Frequency

Genomes: 𝑓 0.0075 ( 11 hom., cov: 31)
Exomes 𝑓: 0.00091 ( 18 hom. )

Consequence

MYBPC1
NM_002465.4 synonymous

Scores

2

Clinical Significance

Benign/Likely benign criteria provided, multiple submitters, no conflicts B:7

Conservation

PhyloP100: -0.262
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]

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ACMG classification

Classification made for transcript

Verdict is Benign. Variant got -21 ACMG points.

BP4
Computational evidence support a benign effect (BayesDel_noAF=-0.61).
BP6
Variant 12-101661240-C-T is Benign according to our data. Variant chr12-101661240-C-T is described in ClinVar as [Likely_benign]. Clinvar id is 129643.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.
BP7
Synonymous conserved (PhyloP=-0.262 with no splicing effect.
BS1
Variant frequency is greater than expected in population afr. gnomad4 allele frequency = 0.00751 (1143/152268) while in subpopulation AFR AF= 0.0256 (1065/41538). AF 95% confidence interval is 0.0244. There are 11 homozygotes in gnomad4. There are 514 alleles in male gnomad4 subpopulation. Median coverage is 31. This position pass quality control queck.
BS2
High Homozygotes in GnomAd4 at 11 AD,AR gene

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
MYBPC1NM_002465.4 linkc.2010C>T p.Tyr670Tyr synonymous_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
MYBPC1ENST00000361466.7 linkc.2010C>T p.Tyr670Tyr synonymous_variant Exon 20 of 32 1 NM_002465.4 ENSP00000354849.2 Q00872-4
MYBPC1ENST00000551300.5 linkc.1638C>T p.Tyr546Tyr synonymous_variant Exon 21 of 32 1 ENSP00000447116.1 G3V1V7

Frequencies

GnomAD3 genomes
AF:
0.00747
AC:
1136
AN:
152150
Hom.:
11
Cov.:
31
show subpopulations
Gnomad AFR
AF:
0.0255
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.00268
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:
0.000338
Gnomad OTH
AF:
0.00670
GnomAD3 exomes
AF:
0.00229
AC:
574
AN:
250798
Hom.:
10
AF XY:
0.00165
AC XY:
224
AN XY:
135538
show subpopulations
Gnomad AFR exome
AF:
0.0275
Gnomad AMR exome
AF:
0.00252
Gnomad ASJ exome
AF:
0.0000994
Gnomad EAS exome
AF:
0.00
Gnomad SAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.000150
Gnomad OTH exome
AF:
0.00375
GnomAD4 exome
AF:
0.000910
AC:
1329
AN:
1459816
Hom.:
18
Cov.:
30
AF XY:
0.000797
AC XY:
579
AN XY:
726240
show subpopulations
Gnomad4 AFR exome
AF:
0.0270
Gnomad4 AMR exome
AF:
0.00300
Gnomad4 ASJ exome
AF:
0.0000383
Gnomad4 EAS exome
AF:
0.0000504
Gnomad4 SAS exome
AF:
0.0000581
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.000125
Gnomad4 OTH exome
AF:
0.00216
GnomAD4 genome
AF:
0.00751
AC:
1143
AN:
152268
Hom.:
11
Cov.:
31
AF XY:
0.00690
AC XY:
514
AN XY:
74456
show subpopulations
Gnomad4 AFR
AF:
0.0256
Gnomad4 AMR
AF:
0.00268
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.00
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.000338
Gnomad4 OTH
AF:
0.00663
Alfa
AF:
0.00235
Hom.:
3
Bravo
AF:
0.00832
Asia WGS
AF:
0.00231
AC:
8
AN:
3478
EpiCase
AF:
0.0000545
EpiControl
AF:
0.000178

ClinVar

Significance: Benign/Likely benign
Submissions summary: Benign:7
Revision: criteria provided, multiple submitters, no conflicts
LINK: link

Submissions by phenotype

not provided Benign:4
Sep 01, 2020
GeneDx
Significance: Likely benign
Review Status: criteria provided, single submitter
Collection Method: clinical testing

- -

-
Breakthrough Genomics, Breakthrough Genomics
Significance: Likely benign
Review Status: criteria provided, single submitter
Collection Method: not provided

- -

May 31, 2024
ARUP Laboratories, Molecular Genetics and Genomics, ARUP Laboratories
Significance: Benign
Review Status: criteria provided, single submitter
Collection Method: clinical testing

- -

Dec 31, 2019
Labcorp Genetics (formerly Invitae), Labcorp
Significance: Benign
Review Status: criteria provided, single submitter
Collection Method: clinical testing

- -

not specified Benign:2
-
PreventionGenetics, part of Exact Sciences
Significance: Benign
Review Status: criteria provided, single submitter
Collection Method: clinical testing

- -

Aug 15, 2013
Genetic Services Laboratory, University of Chicago
Significance: Benign
Review Status: criteria provided, single submitter
Collection Method: clinical testing

- -

Arthrogryposis, distal, type 1B Benign:1
Jan 13, 2018
Illumina Laboratory Services, Illumina
Significance: Benign
Review Status: criteria provided, single submitter
Collection Method: clinical testing

This variant was observed in the ICSL laboratory as part of a predisposition screen in an ostensibly healthy population. It had not been previously curated by ICSL or reported in the Human Gene Mutation Database (HGMD: prior to June 1st, 2018), and was therefore a candidate for classification through an automated scoring system. Utilizing variant allele frequency, disease prevalence and penetrance estimates, and inheritance mode, an automated score was calculated to assess if this variant is too frequent to cause the disease. Based on the score and internal cut-off values, a variant classified as benign is not then subjected to further curation. The score for this variant resulted in a classification of benign for this disease. -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
BayesDel_noAF
Benign
-0.61
CADD
Benign
0.96
DANN
Benign
0.84

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: rs77045393; hg19: chr12-102055018; COSMIC: COSV62253897; COSMIC: COSV62253897; API