dbSNP rs73281077: MYH3:c.4647+27G>A (chr17-10633564-C-T) – ACMG Classification: Benign (-20 pts)

Variant summary

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

The NM_002470.4(MYH3):c.4647+27G>A variant causes a intron change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00298 in 1,611,132 control chromosomes in the GnomAD database, including 142 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Likely benign (★★).

Frequency

Genomes: 𝑓 0.016 ( 76 hom., cov: 33)

Exomes 𝑓: 0.0016 ( 66 hom. )

Consequence

MYH3
NM_002470.4 intron

Scores

Clinical Significance

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

Conservation

PhyloP100: -4.87

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:

LOC124903927 (HGNC:):

LOC124903927 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 -20 ACMG points.

BP4

Computational evidence support a benign effect (BayesDel_noAF=-0.87).

BP6

Variant 17-10633564-C-T is Benign according to our data. Variant chr17-10633564-C-T is described in ClinVar as Benign/Likely_benign. ClinVar VariationId is 258687.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.

BA1

GnomAd4 highest subpopulation (AFR) allele frequency at 95% confidence interval = 0.0551 is higher than 0.05.

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_002470.4. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	MYH3	NM_002470.4	MANE Select	c.4647+27G>A		intron	N/A	NP_002461.2	P11055

Ensembl Transcripts

Gene	Transcript	Tags	HGVSc	Effect	Exon Rank	Protein	UniProt
MYH3	ENST00000583535.6	TSL:5 MANE Select	c.4647+27G>A	intron	N/A	ENSP00000464317.1	P11055
MYH3	ENST00000961194.1		c.4647+27G>A	intron	N/A	ENSP00000631253.1
MYHAS	ENST00000579914.2	TSL:4	n.705+19687C>T	intron	N/A

Frequencies

GnomAD3 genomes

AF:

0.0164

AC:

2500

AN:

152192

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.0569

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.00667

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:

0.000162

Gnomad OTH

AF:

0.0124

GnomAD2 exomes

AF:

0.00393

AC:

981

AN:

249358

AF XY:

0.00301

show subpopulations

Gnomad AFR exome

AF:

0.0553

Gnomad AMR exome

AF:

0.00179

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.0000795

Gnomad OTH exome

AF:

0.000981

GnomAD4 exome

AF:

0.00157

AC:

2297

AN:

1458822

Hom.:

Cov.:

AF XY:

0.00132

AC XY:

960

AN XY:

725928

show subpopulations

African (AFR)

AF:

0.0580

AC:

1941

AN:

33468

American (AMR)

AF:

0.00219

AC:

AN:

44714

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

26130

East Asian (EAS)

AF:

0.00

AC:

AN:

39700

South Asian (SAS)

AF:

0.000186

AC:

AN:

86242

European-Finnish (FIN)

AF:

0.00

AC:

AN:

50658

Middle Eastern (MID)

AF:

0.00105

AC:

AN:

5732

European-Non Finnish (NFE)

AF:

0.0000432

AC:

AN:

1111820

Other (OTH)

AF:

0.00311

AC:

188

AN:

60358

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.482

Heterozygous variant carriers

123

246

369

492

615

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Exome Het

Exome Hom

Variant carriers

128

192

256

320

<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:

0.0165

AC:

2511

AN:

152310

Hom.:

Cov.:

AF XY:

0.0161

AC XY:

1200

AN XY:

74480

show subpopulations

African (AFR)

AF:

0.0570

AC:

2370

AN:

41560

American (AMR)

AF:

0.00666

AC:

102

AN:

15304

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

3472

East Asian (EAS)

AF:

0.00

AC:

AN:

5176

South Asian (SAS)

AF:

0.000207

AC:

AN:

4828

European-Finnish (FIN)

AF:

0.00

AC:

AN:

10618

Middle Eastern (MID)

AF:

0.00340

AC:

AN:

294

European-Non Finnish (NFE)

AF:

0.000162

AC:

AN:

68034

Other (OTH)

AF:

0.0123

AC:

AN:

2112

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.495

Heterozygous variant carriers

113

225

338

450

563

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Genome Het

Genome Hom

Variant carriers

104

130

<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:

0.00771

Hom.:

Bravo

AF:

0.0195

Asia WGS

AF:

0.00375

AC:

AN:

3478

ClinVar

ClinVar submissions

Significance:Benign/Likely benign

Revision:criteria provided, multiple submitters, no conflicts

View on ClinVar

Pathogenic

VUS

Benign

Condition

not provided (1)

not specified (1)

Computational scores

Source: dbNSFP v4.9

Name

Calibrated prediction

Score

Prediction

BayesDel_noAF

Benign

-0.87

CADD

Benign

0.087

(source)

DANN

Benign

0.60

PhyloP100

-4.9

Mutation Taster

=100/0

polymorphism (auto)

(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

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Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

Publications

ACMG classification

Variant Effect in Transcripts

RefSeq Transcripts

Ensembl Transcripts

Frequencies

Age Distribution

Age Distribution

ClinVar

Computational scores

Splicing

Publications

Other links and lift over