rs45468101

Variant summary

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

The NM_000257.4(MYH7):​c.5284-45G>T variant causes a intron change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0127 in 1,614,246 control chromosomes in the GnomAD database, including 409 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Benign (★★).

Frequency

Genomes: 𝑓 0.015 ( 43 hom., cov: 32)
Exomes 𝑓: 0.012 ( 366 hom. )

Consequence

MYH7
NM_000257.4 intron

Scores

2

Clinical Significance

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

Conservation

PhyloP100: -1.20

Publications

2 publications found
Variant links:
Genes affected
MYH7 (HGNC:7577): (myosin heavy chain 7) Muscle myosin is a hexameric protein containing 2 heavy chain subunits, 2 alkali light chain subunits, and 2 regulatory light chain subunits. This gene encodes the beta (or slow) heavy chain subunit of cardiac myosin. It is expressed predominantly in normal human ventricle. It is also expressed in skeletal muscle tissues rich in slow-twitch type I muscle fibers. Changes in the relative abundance of this protein and the alpha (or fast) heavy subunit of cardiac myosin correlate with the contractile velocity of cardiac muscle. Its expression is also altered during thyroid hormone depletion and hemodynamic overloading. Mutations in this gene are associated with familial hypertrophic cardiomyopathy, myosin storage myopathy, dilated cardiomyopathy, and Laing distal myopathy. [provided by RefSeq, May 2022]
MHRT (HGNC:51291): (myosin heavy chain associated RNA transcript) This gene encodes a spliced long non-coding RNA that may act as a cardioprotective agent in the heart. Based on a study of a similar gene in mouse, the encoded transcript may regulate chromatin remodeling by acting as a decoy to the BRG1 chromatin repressor complex thus preventing it from binding to its genomic targets. Blocking the actions of BRG1 could be crucial in protecting the heart from pathological hypertrophy. [provided by RefSeq, Dec 2014]

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 (BayesDel_noAF=-0.96).
BP6
Variant 14-23415315-C-A is Benign according to our data. Variant chr14-23415315-C-A is described in ClinVar as Benign. ClinVar VariationId is 188643.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.
BA1
GnomAd4 highest subpopulation (EAS) allele frequency at 95% confidence interval = 0.0698 is higher than 0.05.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
MYH7NM_000257.4 linkc.5284-45G>T intron_variant Intron 36 of 39 ENST00000355349.4 NP_000248.2 P12883
MYH7NM_001407004.1 linkc.5284-45G>T intron_variant Intron 35 of 38 NP_001393933.1
MHRTNR_126491.1 linkn.-135C>A upstream_gene_variant

Ensembl

Gene Transcript HGVSc HGVSp Effect Exon rank TSL MANE Protein Appris UniProt
MYH7ENST00000355349.4 linkc.5284-45G>T intron_variant Intron 36 of 39 1 NM_000257.4 ENSP00000347507.3 P12883
MYH7ENST00000713768.1 linkc.5284-45G>T intron_variant Intron 36 of 40 ENSP00000519070.1
MYH7ENST00000713769.1 linkc.5284-45G>T intron_variant Intron 35 of 38 ENSP00000519071.1
ENSG00000258444ENST00000557368.1 linkn.-24C>A upstream_gene_variant 3

Frequencies

GnomAD3 genomes
AF:
0.0147
AC:
2236
AN:
152236
Hom.:
36
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.00984
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.0240
Gnomad ASJ
AF:
0.0363
Gnomad EAS
AF:
0.0758
Gnomad SAS
AF:
0.0360
Gnomad FIN
AF:
0.00677
Gnomad MID
AF:
0.0759
Gnomad NFE
AF:
0.00894
Gnomad OTH
AF:
0.0306
GnomAD2 exomes
AF:
0.0218
AC:
5492
AN:
251484
AF XY:
0.0217
show subpopulations
Gnomad AFR exome
AF:
0.00910
Gnomad AMR exome
AF:
0.0360
Gnomad ASJ exome
AF:
0.0305
Gnomad EAS exome
AF:
0.0759
Gnomad FIN exome
AF:
0.00707
Gnomad NFE exome
AF:
0.00948
Gnomad OTH exome
AF:
0.0262
GnomAD4 exome
AF:
0.0125
AC:
18271
AN:
1461892
Hom.:
366
Cov.:
34
AF XY:
0.0132
AC XY:
9601
AN XY:
727246
show subpopulations
African (AFR)
AF:
0.00995
AC:
333
AN:
33480
American (AMR)
AF:
0.0347
AC:
1551
AN:
44724
Ashkenazi Jewish (ASJ)
AF:
0.0335
AC:
875
AN:
26136
East Asian (EAS)
AF:
0.0819
AC:
3251
AN:
39700
South Asian (SAS)
AF:
0.0315
AC:
2718
AN:
86258
European-Finnish (FIN)
AF:
0.00659
AC:
352
AN:
53418
Middle Eastern (MID)
AF:
0.0598
AC:
345
AN:
5768
European-Non Finnish (NFE)
AF:
0.00698
AC:
7757
AN:
1112012
Other (OTH)
AF:
0.0180
AC:
1089
AN:
60396
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.498
Heterozygous variant carriers
0
1425
2850
4275
5700
7125
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Exome Het
Exome Hom
Variant carriers
0
370
740
1110
1480
1850
<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:
0.0148
AC:
2256
AN:
152354
Hom.:
43
Cov.:
32
AF XY:
0.0158
AC XY:
1177
AN XY:
74504
show subpopulations
African (AFR)
AF:
0.00993
AC:
413
AN:
41588
American (AMR)
AF:
0.0241
AC:
369
AN:
15308
Ashkenazi Jewish (ASJ)
AF:
0.0363
AC:
126
AN:
3472
East Asian (EAS)
AF:
0.0760
AC:
393
AN:
5170
South Asian (SAS)
AF:
0.0360
AC:
174
AN:
4828
European-Finnish (FIN)
AF:
0.00677
AC:
72
AN:
10628
Middle Eastern (MID)
AF:
0.0680
AC:
20
AN:
294
European-Non Finnish (NFE)
AF:
0.00894
AC:
608
AN:
68038
Other (OTH)
AF:
0.0383
AC:
81
AN:
2116
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.499
Heterozygous variant carriers
0
105
211
316
422
527
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Genome Het
Genome Hom
Variant carriers
0
30
60
90
120
150
<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:
0.0107
Hom.:
6
Bravo
AF:
0.0170

ClinVar

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

Submissions by phenotype

not specified Benign:1
-
PreventionGenetics, part of Exact Sciences
Significance:Benign
Review Status:criteria provided, single submitter
Collection Method:clinical testing

- -

not provided Benign:1
-
Breakthrough Genomics, Breakthrough Genomics
Significance:Benign
Review Status:criteria provided, single submitter
Collection Method:not provided

- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
BayesDel_noAF
Benign
-0.96
CADD
Benign
0.34
DANN
Benign
0.53
PhyloP100
-1.2
Mutation Taster
=100/0
polymorphism (auto)

Splicing

Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
0.010
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: rs45468101; hg19: chr14-23884524; COSMIC: COSV62517500; COSMIC: COSV62517500; API