rs367866050

Variant summary

Our verdict is Benign. The variant received -20 ACMG points: 0P and 20B. BP4_StrongBP6_Very_StrongBS1BS2

The NM_002471.4(MYH6):​c.3978+8C>T variant causes a splice region, intron change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000138 in 1,613,906 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 3/3 splice prediction tools predict no significant impact on normal splicing. Variant has been reported in ClinVar as Likely benign (★★).

Frequency

Genomes: 𝑓 0.00079 ( 0 hom., cov: 32)
Exomes 𝑓: 0.000070 ( 0 hom. )

Consequence

MYH6
NM_002471.4 splice_region, intron

Scores

2
Splicing: ADA: 0.00009759
2

Clinical Significance

Benign/Likely benign criteria provided, multiple submitters, no conflicts B:8

Conservation

PhyloP100: 0.0210

Publications

1 publications found
Variant links:
Genes affected
MYH6 (HGNC:7576): (myosin heavy chain 6) Cardiac muscle myosin is a hexamer consisting of two heavy chain subunits, two light chain subunits, and two regulatory subunits. This gene encodes the alpha heavy chain subunit of cardiac myosin. The gene is located approximately 4kb downstream of the gene encoding the beta heavy chain subunit of cardiac myosin. Mutations in this gene cause familial hypertrophic cardiomyopathy and atrial septal defect 3. [provided by RefSeq, Feb 2017]
MYH6 Gene-Disease associations (from GenCC):
  • MYH-6 related congenital heart defects
    Inheritance: AD Classification: DEFINITIVE Submitted by: ClinGen
  • hypertrophic cardiomyopathy 14
    Inheritance: AD Classification: STRONG, LIMITED Submitted by: Laboratory for Molecular Medicine, Labcorp Genetics (formerly Invitae)
  • Keppen-Lubinsky syndrome
    Inheritance: AD Classification: MODERATE Submitted by: Illumina
  • familial isolated dilated cardiomyopathy
    Inheritance: AD Classification: SUPPORTIVE Submitted by: Orphanet
  • atrial septal defect 3
    Inheritance: AD Classification: LIMITED Submitted by: G2P
  • dilated cardiomyopathy
    Inheritance: AD Classification: LIMITED Submitted by: ClinGen
  • 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 (BayesDel_noAF=-0.77).
BP6
Variant 14-23389385-G-A is Benign according to our data. Variant chr14-23389385-G-A is described in ClinVar as Benign/Likely_benign. ClinVar VariationId is 44496.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.
BS1
Variant frequency is greater than expected in population afr. GnomAd4 allele frequency = 0.000788 (120/152288) while in subpopulation AFR AF = 0.00279 (116/41572). AF 95% confidence interval is 0.00238. There are 0 homozygotes in GnomAd4. There are 63 alleles in the male GnomAd4 subpopulation. Median coverage is 32. This position passed quality control check.
BS2
High AC in GnomAd4 at 120 AD gene.

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_002471.4. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Sel.
GeneTranscriptTagsHGVScHGVSpEffectExon RankProteinUniProt
MYH6
NM_002471.4
MANE Select
c.3978+8C>T
splice_region intron
N/ANP_002462.2P13533

Ensembl Transcripts

Sel.
GeneTranscriptTagsHGVScHGVSpEffectExon RankProteinUniProt
MYH6
ENST00000405093.9
TSL:5 MANE Select
c.3978+8C>T
splice_region intron
N/AENSP00000386041.3P13533
MYH6
ENST00000968262.1
c.4011+8C>T
splice_region intron
N/AENSP00000638321.1
MYH6
ENST00000968257.1
c.3978+8C>T
splice_region intron
N/AENSP00000638316.1

Frequencies

GnomAD3 genomes
AF:
0.000789
AC:
120
AN:
152170
Hom.:
0
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.00280
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.000196
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:
0.00
Gnomad OTH
AF:
0.000478
GnomAD2 exomes
AF:
0.000266
AC:
67
AN:
251448
AF XY:
0.000177
show subpopulations
Gnomad AFR exome
AF:
0.00351
Gnomad AMR exome
AF:
0.000231
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.00
Gnomad OTH exome
AF:
0.000326
GnomAD4 exome
AF:
0.0000698
AC:
102
AN:
1461618
Hom.:
0
Cov.:
33
AF XY:
0.0000495
AC XY:
36
AN XY:
727130
show subpopulations
African (AFR)
AF:
0.00224
AC:
75
AN:
33470
American (AMR)
AF:
0.000201
AC:
9
AN:
44724
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
26130
East Asian (EAS)
AF:
0.00
AC:
0
AN:
39698
South Asian (SAS)
AF:
0.00
AC:
0
AN:
86254
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
53416
Middle Eastern (MID)
AF:
0.000173
AC:
1
AN:
5766
European-Non Finnish (NFE)
AF:
0.00000360
AC:
4
AN:
1111770
Other (OTH)
AF:
0.000215
AC:
13
AN:
60390
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.475
Heterozygous variant carriers
0
8
15
23
30
38
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Exome Het
Variant carriers
0
4
8
12
16
20
<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:
0.000788
AC:
120
AN:
152288
Hom.:
0
Cov.:
32
AF XY:
0.000846
AC XY:
63
AN XY:
74474
show subpopulations
African (AFR)
AF:
0.00279
AC:
116
AN:
41572
American (AMR)
AF:
0.000196
AC:
3
AN:
15296
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
3470
East Asian (EAS)
AF:
0.00
AC:
0
AN:
5180
South Asian (SAS)
AF:
0.00
AC:
0
AN:
4830
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
10618
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
292
European-Non Finnish (NFE)
AF:
0.00
AC:
0
AN:
68004
Other (OTH)
AF:
0.000473
AC:
1
AN:
2114
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.482
Heterozygous variant carriers
0
6
12
19
25
31
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Genome Het
Variant carriers
0
2
4
6
8
10
<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:
0.000444
Hom.:
0
Bravo
AF:
0.000835

ClinVar

ClinVar submissions
Significance:Benign/Likely benign
Revision:criteria provided, multiple submitters, no conflicts
View on ClinVar
Pathogenic
VUS
Benign
Condition
-
-
5
not specified (5)
-
-
1
Hypertrophic cardiomyopathy (1)
-
-
1
Hypertrophic cardiomyopathy 14 (1)
-
-
1
not provided (1)

Computational scores

Source: dbNSFP v4.9

Name
Calibrated prediction
Score
Prediction
BayesDel_noAF
Benign
-0.77
CADD
Benign
6.8
DANN
Benign
0.79
PhyloP100
0.021
Mutation Taster
=100/0
polymorphism

Splicing

Name
Calibrated prediction
Score
Prediction
dbscSNV1_ADA
Benign
0.000098
dbscSNV1_RF
Benign
0.0020
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: rs367866050; hg19: chr14-23858594; API