14-23383327-G-A

Variant summary

Our verdict is Benign. Variant got -16 ACMG points: 0P and 16B. BP4_StrongBP6_Very_StrongBS2

The NM_002471.4(MYH6):​c.5566-7C>T variant causes a splice region, splice polypyrimidine tract, intron change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000959 in 823,808 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 0.000060 ( 0 hom., cov: 29)
Exomes 𝑓: 0.000096 ( 0 hom. )
Failed GnomAD Quality Control

Consequence

MYH6
NM_002471.4 splice_region, splice_polypyrimidine_tract, intron

Scores

2
Splicing: ADA: 0.00003734
2

Clinical Significance

Likely benign criteria provided, multiple submitters, no conflicts B:2

Conservation

PhyloP100: -0.113
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]

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Benign. Variant got -16 ACMG points.

BP4
Computational evidence support a benign effect (BayesDel_noAF=-0.82).
BP6
Variant 14-23383327-G-A is Benign according to our data. Variant chr14-23383327-G-A is described in ClinVar as [Likely_benign]. Clinvar id is 312841.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.
BS2
High AC in GnomAdExome4 at 79 AD gene.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
MYH6NM_002471.4 linkuse as main transcriptc.5566-7C>T splice_region_variant, splice_polypyrimidine_tract_variant, intron_variant ENST00000405093.9

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
MYH6ENST00000405093.9 linkuse as main transcriptc.5566-7C>T splice_region_variant, splice_polypyrimidine_tract_variant, intron_variant 5 NM_002471.4 P1
MYH6ENST00000651452.1 linkuse as main transcriptn.786C>T non_coding_transcript_exon_variant 1/3

Frequencies

GnomAD3 genomes
AF:
0.00
AC:
9
AN:
150012
Hom.:
0
Cov.:
29
FAILED QC
Gnomad AFR
AF:
0.00
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.00
Gnomad ASJ
AF:
0.00117
Gnomad EAS
AF:
0.000789
Gnomad SAS
AF:
0.00
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.0000148
Gnomad OTH
AF:
0.00
GnomAD3 exomes
AF:
0.000293
AC:
60
AN:
205012
Hom.:
0
AF XY:
0.000287
AC XY:
32
AN XY:
111358
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.00
Gnomad ASJ exome
AF:
0.00122
Gnomad EAS exome
AF:
0.00287
Gnomad SAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.0000112
Gnomad OTH exome
AF:
0.000380
GnomAD4 exome
AF:
0.0000959
AC:
79
AN:
823808
Hom.:
0
Cov.:
25
AF XY:
0.0000943
AC XY:
40
AN XY:
424184
show subpopulations
Gnomad4 AFR exome
AF:
0.00
Gnomad4 AMR exome
AF:
0.00
Gnomad4 ASJ exome
AF:
0.00161
Gnomad4 EAS exome
AF:
0.00143
Gnomad4 SAS exome
AF:
0.00
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.0000120
Gnomad4 OTH exome
AF:
0.000173
GnomAD4 genome
Data not reliable, filtered out with message: AS_VQSR
AF:
0.0000600
AC:
9
AN:
150124
Hom.:
0
Cov.:
29
AF XY:
0.0000819
AC XY:
6
AN XY:
73278
show subpopulations
Gnomad4 AFR
AF:
0.00
Gnomad4 AMR
AF:
0.00
Gnomad4 ASJ
AF:
0.00117
Gnomad4 EAS
AF:
0.000792
Gnomad4 SAS
AF:
0.00
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.0000148
Gnomad4 OTH
AF:
0.00
Alfa
AF:
0.0000843
Hom.:
0
Bravo
AF:
0.000162

ClinVar

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

Submissions by phenotype

Hypertrophic cardiomyopathy 14 Benign:1
Likely benign, criteria provided, single submitterclinical testingInvitaeJan 31, 2024- -
not provided Benign:1
Likely benign, criteria provided, single submitterclinical testingGeneDxMay 30, 2019- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
BayesDel_noAF
Benign
-0.82
CADD
Benign
2.8
DANN
Benign
0.69

Splicing

Name
Calibrated prediction
Score
Prediction
dbscSNV1_ADA
Benign
0.000037
dbscSNV1_RF
Benign
0.0020
SpliceAI score (max)
0.050
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: rs200509899; hg19: chr14-23852536; API