Variant chr14-23389062-A-AGG details in Genebe, Genetics Data Aggregator

Variant summary

Our verdict is Benign. Variant got -12 ACMG points: 0P and 12B. BP6_Very_StrongBS2

The NM_002471.4(MYH6):c.3979-8_3979-7insCC variant causes a splice region, splice polypyrimidine tract, intron change involving the alteration of a non-conserved nucleotide. Variant has been reported in ClinVar as Likely benign (★★).

Frequency

Genomes: 𝑓 0.000026 ( 0 hom., cov: 0)

Exomes 𝑓: 0.000025 ( 0 hom. )

Consequence

MYH6
NM_002471.4 splice_region, splice_polypyrimidine_tract, intron

Scores

Not classified

Clinical Significance

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

Conservation

PhyloP100: 0.275

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 links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Benign. Variant got -12 ACMG points.

BP6

Variant 14-23389062-A-AGG is Benign according to our data. Variant chr14-23389062-A-AGG is described in ClinVar as [Likely_benign]. Clinvar id is 928727.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.

BS2

High AC in GnomAdExome4 at 27 AD gene.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	UniProt
MYH6	NM_002471.4 linkuse as main transcript	c.3979-8_3979-7insCC		splice_region_variant, splice_polypyrimidine_tract_variant, intron_variant		ENST00000405093.9

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
MYH6	ENST00000405093.9 linkuse as main transcript	c.3979-8_3979-7insCC		splice_region_variant, splice_polypyrimidine_tract_variant, intron_variant		5	NM_002471.4	P1

Frequencies

GnomAD3 genomes

AF:

0.0000259

AC:

AN:

115624

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.00

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.00

Gnomad ASJ

AF:

0.00

Gnomad EAS

AF:

0.000329

Gnomad SAS

AF:

0.00

Gnomad FIN

AF:

0.00

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.0000427

Gnomad OTH

AF:

0.00

GnomAD4 exome

AF:

0.0000255

AC:

AN:

1059776

Hom.:

Cov.:

AF XY:

0.0000208

AC XY:

AN XY:

528120

show subpopulations

Gnomad4 AFR exome

AF:

0.00

Gnomad4 AMR exome

AF:

0.0000338

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.0000360

Gnomad4 SAS exome

AF:

0.0000458

Gnomad4 FIN exome

AF:

0.0000286

Gnomad4 NFE exome

AF:

0.0000212

Gnomad4 OTH exome

AF:

0.0000886

GnomAD4 genome

AF:

0.0000259

AC:

AN:

115624

Hom.:

Cov.:

AF XY:

0.0000176

AC XY:

AN XY:

56768

show subpopulations

Gnomad4 AFR

AF:

0.00

Gnomad4 AMR

AF:

0.00

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.000329

Gnomad4 SAS

AF:

0.00

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.0000427

Gnomad4 OTH

AF:

0.00

ClinVar

Significance: Benign/Likely benign

Submissions summary: Benign:2

Revision: criteria provided, multiple submitters, no conflicts

LINK: link

Submissions by phenotype

not specified

Benign:1

Likely benign, criteria provided, single submitter

clinical testing

Women's Health and Genetics/Laboratory Corporation of America, LabCorp

Nov 21, 2019

Variant summary: MYH6 c.3979-9_3979-8dupCC alters multiple nucleotides in a repeat Cs region located close to a canonical splice site. 5/5 computational tools predict no significant impact on normal splicing. However, these predictions have yet to be confirmed by functional studies. The variant was absent in 139674 control chromosomes (gnomAD). The available data on variant occurrences in the general population are insufficient to allow any conclusion about variant significance. To our knowledge, no occurrence of c.3979-9_3979-8dupCC in individuals affected with Cardiomyopathy and no experimental evidence demonstrating its impact on protein function have been reported. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar after 2014. However, several del/dup variants have been found in this region and classified as benign/likely benign. Based on the evidence outlined above, the variant was classified as likely benign. -

Hypertrophic cardiomyopathy 14

Benign:1

Benign, criteria provided, single submitter

clinical testing

Labcorp Genetics (formerly Invitae), Labcorp

Jul 20, 2022

- -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

Splicing

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.

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

LitVar

Other links and lift over