rs116743447

Variant summary

Our verdict is Benign. The variant received -16 ACMG points: 0P and 16B. BP4_StrongBP6_Very_StrongBS2

The NM_003803.4(MYOM1):​c.1843+10T>G variant causes a intron change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000595 in 1,605,540 control chromosomes in the GnomAD database, including 5 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Benign (★★).

Frequency

Genomes: 𝑓 0.0031 ( 2 hom., cov: 32)
Exomes 𝑓: 0.00034 ( 3 hom. )

Consequence

MYOM1
NM_003803.4 intron

Scores

2

Clinical Significance

Benign criteria provided, multiple submitters, no conflicts B:2

Conservation

PhyloP100: -0.0420

Publications

1 publications found
Variant links:
Genes affected
MYOM1 (HGNC:7613): (myomesin 1) The giant protein titin, together with its associated proteins, interconnects the major structure of sarcomeres, the M bands and Z discs. The C-terminal end of the titin string extends into the M line, where it binds tightly to M-band constituents of apparent molecular masses of 190 kD (myomesin 1) and 165 kD (myomesin 2). This protein, myomesin 1, like myomesin 2, titin, and other myofibrillar proteins contains structural modules with strong homology to either fibronectin type III (motif I) or immunoglobulin C2 (motif II) domains. Myomesin 1 and myomesin 2 each have a unique N-terminal region followed by 12 modules of motif I or motif II, in the arrangement II-II-I-I-I-I-I-II-II-II-II-II. The two proteins share 50% sequence identity in this repeat-containing region. The head structure formed by these 2 proteins on one end of the titin string extends into the center of the M band. The integrating structure of the sarcomere arises from muscle-specific members of the superfamily of immunoglobulin-like proteins. Alternatively spliced transcript variants encoding different isoforms have been identified. [provided by RefSeq, Jul 2008]
MYOM1 Gene-Disease associations (from GenCC):
  • hypertrophic cardiomyopathy
    Inheritance: AD Classification: NO_KNOWN Submitted by: ClinGen

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Benign. The variant received -16 ACMG points.

BP4
Computational evidence support a benign effect (BayesDel_noAF=-0.83).
BP6
Variant 18-3151684-A-C is Benign according to our data. Variant chr18-3151684-A-C is described in ClinVar as Benign. ClinVar VariationId is 226805.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.
BS2
High AC in GnomAd4 at 467 AD gene.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
MYOM1NM_003803.4 linkc.1843+10T>G intron_variant Intron 12 of 37 ENST00000356443.9 NP_003794.3

Ensembl

Gene Transcript HGVSc HGVSp Effect Exon rank TSL MANE Protein Appris UniProt
MYOM1ENST00000356443.9 linkc.1843+10T>G intron_variant Intron 12 of 37 1 NM_003803.4 ENSP00000348821.4
MYOM1ENST00000261606.11 linkc.1843+10T>G intron_variant Intron 12 of 36 1 ENSP00000261606.7

Frequencies

GnomAD3 genomes
AF:
0.00306
AC:
466
AN:
152130
Hom.:
2
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.0106
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.00137
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:
0.0000147
Gnomad OTH
AF:
0.00239
GnomAD2 exomes
AF:
0.000841
AC:
205
AN:
243628
AF XY:
0.000506
show subpopulations
Gnomad AFR exome
AF:
0.0115
Gnomad AMR exome
AF:
0.000699
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.0000361
Gnomad OTH exome
AF:
0.000342
GnomAD4 exome
AF:
0.000336
AC:
489
AN:
1453292
Hom.:
3
Cov.:
30
AF XY:
0.000266
AC XY:
192
AN XY:
722620
show subpopulations
African (AFR)
AF:
0.0116
AC:
383
AN:
33016
American (AMR)
AF:
0.000807
AC:
35
AN:
43384
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
25640
East Asian (EAS)
AF:
0.00
AC:
0
AN:
39598
South Asian (SAS)
AF:
0.00
AC:
0
AN:
85634
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
53172
Middle Eastern (MID)
AF:
0.000176
AC:
1
AN:
5694
European-Non Finnish (NFE)
AF:
0.0000280
AC:
31
AN:
1107202
Other (OTH)
AF:
0.000651
AC:
39
AN:
59952
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.481
Heterozygous variant carriers
0
21
43
64
86
107
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Exome Het
Exome Hom
Variant carriers
0
20
40
60
80
100
<30
30-35
35-40
40-45
45-50
50-55
55-60
60-65
65-70
70-75
75-80
>80
Age
GnomAD4 genome
AF:
0.00307
AC:
467
AN:
152248
Hom.:
2
Cov.:
32
AF XY:
0.00281
AC XY:
209
AN XY:
74426
show subpopulations
African (AFR)
AF:
0.0106
AC:
440
AN:
41556
American (AMR)
AF:
0.00137
AC:
21
AN:
15296
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
3470
East Asian (EAS)
AF:
0.00
AC:
0
AN:
5178
South Asian (SAS)
AF:
0.00
AC:
0
AN:
4818
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
10596
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
294
European-Non Finnish (NFE)
AF:
0.0000147
AC:
1
AN:
68012
Other (OTH)
AF:
0.00236
AC:
5
AN:
2116
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.506
Heterozygous variant carriers
0
27
54
81
108
135
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Genome Het
Variant carriers
0
10
20
30
40
50
<30
30-35
35-40
40-45
45-50
50-55
55-60
60-65
65-70
70-75
75-80
>80
Age
Alfa
AF:
0.00197
Hom.:
1
Bravo
AF:
0.00373
Asia WGS
AF:
0.000577
AC:
2
AN:
3478

ClinVar

Significance: Benign
Submissions summary: Benign:2
Revision: criteria provided, multiple submitters, no conflicts
LINK: link

Submissions by phenotype

not specified Benign:1
Nov 24, 2014
Laboratory for Molecular Medicine, Mass General Brigham Personalized Medicine
Significance:Benign
Review Status:criteria provided, single submitter
Collection Method:clinical testing

1843+10T>G in intron 12 of MYOM1: This variant is not expected to have clinical significance because it is not located within the conserved splice consensus seq uence. It has been identified in 0.9% (32/3714) of African American chromosomes from a broad population by the NHLBI Exome Sequencing Project (http://evs.gs.was hington.edu/EVS; dbSNP rs116743447).

Hypertrophic cardiomyopathy Benign:1
Jan 29, 2025
Labcorp Genetics (formerly Invitae), Labcorp
Significance:Benign
Review Status:criteria provided, single submitter
Collection Method:clinical testing

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
BayesDel_noAF
Benign
-0.83
CADD
Benign
8.6
DANN
Benign
0.44
PhyloP100
-0.042
Mutation Taster
=100/0
polymorphism

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

Other links and lift over

dbSNP: rs116743447; hg19: chr18-3151682; API