rs1962519

Variant summary

Our verdict is Benign. The variant received -20 ACMG points: 0P and 20B. BP4_StrongBP6_Very_StrongBA1

The NM_003803.4(MYOM1):​c.541T>C​(p.Ser181Pro) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.429 in 1,612,490 control chromosomes in the GnomAD database, including 155,065 homozygotes. 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 Benign (★★).

Frequency

Genomes: 𝑓 0.38 ( 12112 hom., cov: 28)
Exomes 𝑓: 0.43 ( 142953 hom. )

Consequence

MYOM1
NM_003803.4 missense

Scores

1
17

Clinical Significance

Benign criteria provided, multiple submitters, no conflicts B:5

Conservation

PhyloP100: 0.196

Publications

31 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 -20 ACMG points.

BP4
Computational evidence support a benign effect (MetaRNN=9.0599656E-7).
BP6
Variant 18-3188978-A-G is Benign according to our data. Variant chr18-3188978-A-G is described in ClinVar as Benign. ClinVar VariationId is 226830.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.
BA1
GnomAd4 highest subpopulation (EAS) allele frequency at 95% confidence interval = 0.801 is higher than 0.05.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
MYOM1NM_003803.4 linkc.541T>C p.Ser181Pro missense_variant Exon 4 of 38 ENST00000356443.9 NP_003794.3 P52179-1

Ensembl

Gene Transcript HGVSc HGVSp Effect Exon rank TSL MANE Protein Appris UniProt
MYOM1ENST00000356443.9 linkc.541T>C p.Ser181Pro missense_variant Exon 4 of 38 1 NM_003803.4 ENSP00000348821.4 P52179-1
MYOM1ENST00000261606.11 linkc.541T>C p.Ser181Pro missense_variant Exon 4 of 37 1 ENSP00000261606.7 P52179-2

Frequencies

GnomAD3 genomes
AF:
0.378
AC:
56923
AN:
150678
Hom.:
12103
Cov.:
28
show subpopulations
Gnomad AFR
AF:
0.205
Gnomad AMI
AF:
0.458
Gnomad AMR
AF:
0.392
Gnomad ASJ
AF:
0.395
Gnomad EAS
AF:
0.821
Gnomad SAS
AF:
0.481
Gnomad FIN
AF:
0.490
Gnomad MID
AF:
0.212
Gnomad NFE
AF:
0.420
Gnomad OTH
AF:
0.374
GnomAD2 exomes
AF:
0.444
AC:
110640
AN:
249218
AF XY:
0.447
show subpopulations
Gnomad AFR exome
AF:
0.197
Gnomad AMR exome
AF:
0.400
Gnomad ASJ exome
AF:
0.392
Gnomad EAS exome
AF:
0.821
Gnomad FIN exome
AF:
0.504
Gnomad NFE exome
AF:
0.417
Gnomad OTH exome
AF:
0.423
GnomAD4 exome
AF:
0.435
AC:
635354
AN:
1461694
Hom.:
142953
Cov.:
82
AF XY:
0.436
AC XY:
316962
AN XY:
727128
show subpopulations
African (AFR)
AF:
0.201
AC:
6716
AN:
33480
American (AMR)
AF:
0.402
AC:
17975
AN:
44722
Ashkenazi Jewish (ASJ)
AF:
0.392
AC:
10245
AN:
26134
East Asian (EAS)
AF:
0.832
AC:
33021
AN:
39700
South Asian (SAS)
AF:
0.473
AC:
40816
AN:
86258
European-Finnish (FIN)
AF:
0.502
AC:
26791
AN:
53402
Middle Eastern (MID)
AF:
0.278
AC:
1603
AN:
5768
European-Non Finnish (NFE)
AF:
0.425
AC:
472075
AN:
1111856
Other (OTH)
AF:
0.433
AC:
26112
AN:
60374
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.493
Heterozygous variant carriers
0
23622
47245
70867
94490
118112
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Exome Het
Exome Hom
Variant carriers
0
14506
29012
43518
58024
72530
<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:
0.378
AC:
56967
AN:
150796
Hom.:
12112
Cov.:
28
AF XY:
0.383
AC XY:
28128
AN XY:
73532
show subpopulations
African (AFR)
AF:
0.206
AC:
8443
AN:
41062
American (AMR)
AF:
0.392
AC:
5923
AN:
15116
Ashkenazi Jewish (ASJ)
AF:
0.395
AC:
1367
AN:
3458
East Asian (EAS)
AF:
0.822
AC:
4139
AN:
5034
South Asian (SAS)
AF:
0.483
AC:
2303
AN:
4772
European-Finnish (FIN)
AF:
0.490
AC:
5044
AN:
10286
Middle Eastern (MID)
AF:
0.207
AC:
61
AN:
294
European-Non Finnish (NFE)
AF:
0.420
AC:
28478
AN:
67774
Other (OTH)
AF:
0.379
AC:
796
AN:
2098
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.503
Heterozygous variant carriers
0
1584
3168
4751
6335
7919
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Genome Het
Genome Hom
Variant carriers
0
562
1124
1686
2248
2810
<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:
0.412
Hom.:
62382
Bravo
AF:
0.361
TwinsUK
AF:
0.405
AC:
1501
ALSPAC
AF:
0.426
AC:
1641
ESP6500AA
AF:
0.187
AC:
747
ESP6500EA
AF:
0.415
AC:
3467
ExAC
AF:
0.437
AC:
52817
Asia WGS
AF:
0.614
AC:
2132
AN:
3478
EpiCase
AF:
0.402
EpiControl
AF:
0.392

ClinVar

Significance: Benign
Submissions summary: Benign:5
Revision: criteria provided, multiple submitters, no conflicts
LINK: link

Submissions by phenotype

not specified Benign:2
Feb 07, 2019
Ambry Genetics
Significance:Benign
Review Status:criteria provided, single submitter
Collection Method:clinical testing

This alteration is classified as benign based on a combination of the following: seen in unaffected individuals, population frequency, intact protein function, lack of segregation with disease, co-occurrence, RNA analysis, in silico models, amino acid conservation, lack of disease association in case-control studies, and/or the mechanism of disease or impacted region is inconsistent with a known cause of pathogenicity. -

Nov 24, 2014
Laboratory for Molecular Medicine, Mass General Brigham Personalized Medicine
Significance:Benign
Review Status:criteria provided, single submitter
Collection Method:clinical testing

Ser181Pro in exon 4 of MYOM1: This variant is not expected to have clinical sign ificance because it has been identified in 41.5% (3467/8348) of European America n chromosomes from a broad population by the NHLBI Exome Sequencing Project (htt p://evs.gs.washington.edu/EVS; dbSNP rs1962519). -

not provided Benign:2
-
Breakthrough Genomics, Breakthrough Genomics
Significance:Benign
Review Status:criteria provided, single submitter
Collection Method:not provided

- -

Jun 13, 2018
GeneDx
Significance:Benign
Review Status:criteria provided, single submitter
Collection Method:clinical testing

This variant is considered likely benign or benign based on one or more of the following criteria: it is a conservative change, it occurs at a poorly conserved position in the protein, it is predicted to be benign by multiple in silico algorithms, and/or has population frequency not consistent with disease. -

Hypertrophic cardiomyopathy Benign:1
Feb 03, 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
AlphaMissense
Benign
0.33
BayesDel_addAF
Benign
-0.60
T
BayesDel_noAF
Benign
-0.50
CADD
Benign
20
DANN
Uncertain
0.99
DEOGEN2
Benign
0.021
T;.;.
Eigen
Benign
-0.45
Eigen_PC
Benign
-0.50
FATHMM_MKL
Benign
0.095
N
LIST_S2
Benign
0.68
T;T;T
MetaRNN
Benign
9.1e-7
T;T;T
MetaSVM
Benign
-0.99
T
MutationAssessor
Benign
1.8
L;.;L
PhyloP100
0.20
PrimateAI
Benign
0.32
T
PROVEAN
Benign
-1.3
N;.;N
REVEL
Benign
0.049
Sift
Benign
0.088
T;.;T
Sift4G
Benign
0.20
T;T;T
Polyphen
0.86
P;.;D
Vest4
0.33
MPC
0.18
ClinPred
0.018
T
GERP RS
1.3
Varity_R
0.25
gMVP
0.061
Mutation Taster
=99/1
polymorphism (auto)

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: rs1962519; hg19: chr18-3188976; COSMIC: COSV55291896; COSMIC: COSV55291896; API