rs34695778

Variant names:

Variant summary

Our verdict is Benign. The variant received -19 ACMG points: 0P and 19B. BP4_ModerateBP6_Very_StrongBP7BS1BS2

The NM_002470.4(MYH3):c.1575C>T(p.Ile525Ile) variant causes a synonymous change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000932 in 1,614,062 control chromosomes in the GnomAD database, including 11 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Likely benign (★★).

Frequency

Genomes: 𝑓 0.0048 ( 4 hom., cov: 32)

Exomes 𝑓: 0.00052 ( 7 hom. )

Consequence

MYH3
NM_002470.4 synonymous

Scores

Clinical Significance

Benign/Likely benign criteria provided, multiple submitters, no conflicts B:7

Conservation

PhyloP100: -0.924

Publications

0 publications found

Variant links:

Genes affected

MYH3 (HGNC:7573): (myosin heavy chain 3) Myosin is a major contractile protein which converts chemical energy into mechanical energy through the hydrolysis of ATP. Myosin is a hexameric protein composed of a pair of myosin heavy chains (MYH) and two pairs of nonidentical light chains. This gene is a member of the MYH family and encodes a protein with an IQ domain and a myosin head-like domain. Mutations in this gene have been associated with two congenital contracture (arthrogryposis) syndromes, Freeman-Sheldon syndrome and Sheldon-Hall syndrome. [provided by RefSeq, Jul 2008]

MYH3 links:

MYHAS (HGNC:50609): (myosin heavy chain gene cluster antisense RNA) Predicted to enable primary miRNA binding activity. Predicted to be involved in response to muscle activity and skeletal muscle fiber development. Predicted to act upstream of or within with a positive effect on gene expression. Predicted to be located in cytoplasm and nucleus. [provided by Alliance of Genome Resources, Apr 2022]

MYHAS links:

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Benign. The variant received -19 ACMG points.

BP4

Computational evidence support a benign effect (BayesDel_noAF=-0.39).

BP6

Variant 17-10642832-G-A is Benign according to our data. Variant chr17-10642832-G-A is described in ClinVar as [Likely_benign]. Clinvar id is 258670.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.

BP7

Synonymous conserved (PhyloP=-0.924 with no splicing effect.

BS1

Variant frequency is greater than expected in population afr. GnomAd4 allele frequency = 0.00484 (737/152234) while in subpopulation AFR AF = 0.0171 (709/41548). AF 95% confidence interval is 0.016. There are 4 homozygotes in GnomAd4. There are 347 alleles in the male GnomAd4 subpopulation. Median coverage is 32. This position passed quality control check.

BS2

High Homozygotes in GnomAd4 at 4 AD,AR gene

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
MYH3	NM_002470.4 link	c.1575C>T	p.Ile525Ile	synonymous_variant	Exon 15 of 41	ENST00000583535.6	NP_002461.2	P11055Q5GJ67
MYH3	XM_011523870.4 link	c.1575C>T	p.Ile525Ile	synonymous_variant	Exon 15 of 41		XP_011522172.1	P11055
MYH3	XM_011523871.3 link	c.1575C>T	p.Ile525Ile	synonymous_variant	Exon 15 of 41		XP_011522173.1	P11055
MYH3	XM_047436127.1 link	c.1575C>T	p.Ile525Ile	synonymous_variant	Exon 17 of 43		XP_047292083.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	UniProt
MYH3	ENST00000583535.6 link	c.1575C>T	p.Ile525Ile	synonymous_variant	Exon 15 of 41	5	NM_002470.4	ENSP00000464317.1	P11055
MYHAS	ENST00000579914.2 link	n.705+28955G>A		intron_variant	Intron 4 of 4	4
MYHAS	ENST00000584139.2 link	n.1041+28955G>A		intron_variant	Intron 7 of 8	3

Frequencies

GnomAD3 genomes

AF:

0.00484

AC:

737

AN:

152116

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.0171

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.000720

Gnomad ASJ

AF:

0.00

Gnomad EAS

AF:

0.00

Gnomad SAS

AF:

0.000207

Gnomad FIN

AF:

0.00

Gnomad MID

AF:

0.00316

Gnomad NFE

AF:

0.0000882

Gnomad OTH

AF:

0.00430

GnomAD2 exomes

AF:

0.00118

AC:

298

AN:

251494

AF XY:

0.000839

show subpopulations

Gnomad AFR exome

AF:

0.0159

Gnomad AMR exome

AF:

0.000896

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.0000439

Gnomad OTH exome

AF:

0.000326

GnomAD4 exome

AF:

0.000525

AC:

767

AN:

1461828

Hom.:

Cov.:

AF XY:

0.000437

AC XY:

318

AN XY:

727210

show subpopulations

African (AFR)

AF:

0.0190

AC:

637

AN:

33474

American (AMR)

AF:

0.000850

AC:

AN:

44722

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

26134

East Asian (EAS)

AF:

0.00

AC:

AN:

39700

South Asian (SAS)

AF:

0.0000696

AC:

AN:

86252

European-Finnish (FIN)

AF:

0.00

AC:

AN:

53420

Middle Eastern (MID)

AF:

0.00121

AC:

AN:

5768

European-Non Finnish (NFE)

AF:

0.0000126

AC:

AN:

1111974

Other (OTH)

AF:

0.00108

AC:

AN:

60384

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.472

Heterozygous variant carriers

118

178

237

296

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

GnomAD4 genome

AF:

0.00484

AC:

737

AN:

152234

Hom.:

Cov.:

AF XY:

0.00466

AC XY:

347

AN XY:

74432

show subpopulations

African (AFR)

AF:

0.0171

AC:

709

AN:

41548

American (AMR)

AF:

0.000719

AC:

AN:

15290

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

3468

East Asian (EAS)

AF:

0.00

AC:

AN:

5172

South Asian (SAS)

AF:

0.000208

AC:

AN:

4816

European-Finnish (FIN)

AF:

0.00

AC:

AN:

10618

Middle Eastern (MID)

AF:

0.00340

AC:

AN:

294

European-Non Finnish (NFE)

AF:

0.0000882

AC:

AN:

68002

Other (OTH)

AF:

0.00426

AC:

AN:

2114

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.500

Heterozygous variant carriers

109

145

181

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Alfa

AF:

0.00244

Hom.:

Bravo

AF:

0.00533

Asia WGS

AF:

0.000577

AC:

AN:

3478

EpiCase

AF:

0.00

EpiControl

AF:

0.0000593

ClinVar

Significance: Benign/Likely benign

Submissions summary: Benign:7

Revision: criteria provided, multiple submitters, no conflicts

LINK: link

Submissions by phenotype

not provided

Benign:3

Jan 29, 2025

Labcorp Genetics (formerly Invitae), Labcorp

Significance:Benign

Review Status:criteria provided, single submitter

Collection Method:clinical testing

- -

Mar 18, 2021

GeneDx

Significance:Likely benign

Review Status:criteria provided, single submitter

Collection Method:clinical testing

- -

Breakthrough Genomics, Breakthrough Genomics

Significance:Likely benign

Review Status:criteria provided, single submitter

Collection Method:not provided

- -

not specified

Benign:1

PreventionGenetics, part of Exact Sciences

Significance:Benign

Review Status:criteria provided, single submitter

Collection Method:clinical testing

- -

Freeman-Sheldon syndrome

Benign:1

Jan 13, 2018

Illumina Laboratory Services, Illumina

Significance:Benign

Review Status:criteria provided, single submitter

Collection Method:clinical testing

This variant was observed in the ICSL laboratory as part of a predisposition screen in an ostensibly healthy population. It had not been previously curated by ICSL or reported in the Human Gene Mutation Database (HGMD: prior to June 1st, 2018), and was therefore a candidate for classification through an automated scoring system. Utilizing variant allele frequency, disease prevalence and penetrance estimates, and inheritance mode, an automated score was calculated to assess if this variant is too frequent to cause the disease. Based on the score and internal cut-off values, a variant classified as benign is not then subjected to further curation. The score for this variant resulted in a classification of benign for this disease. -

Freeman-Sheldon syndrome;C1867440:Contractures, pterygia, and spondylocarpotarsal fusion syndrome 1A;C5193098:Arthrogryposis, distal, type 2B3;C5193114:Contractures, pterygia, and variable skeletal fusions syndrome 1B

Benign:1

Feb 15, 2022

Fulgent Genetics, Fulgent Genetics

Significance:Likely benign

Review Status:criteria provided, single submitter

Collection Method:clinical testing

- -

Distal arthrogryposis type 2B1

Benign:1

Jan 13, 2018

Illumina Laboratory Services, Illumina

Significance:Benign

Review Status:criteria provided, single submitter

Collection Method:clinical testing

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

BayesDel_noAF

Benign

-0.39

CADD

Benign

3.5

(source)

DANN

Benign

0.85

PhyloP100

-0.92

Mutation Taster

=86/14

polymorphism

(source)

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

You must be logged in to view publications. This limit was set because tens of millions (!) of queries from AI bots are generated daily.

rs34695778

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

Publications

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

Age Distribution

Age Distribution

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

Other links and lift over