Genetic Variant MYH13:p.Asn700Lys (chr17-10333148-G-C) – ACMG Classification: Likely_benign (-2 pts)

Variant summary

Our verdict is Likely benign. The variant received -2 ACMG points: 2P and 4B. PP3_ModerateBS2

The NM_003802.3(MYH13):c.2100C>G(p.Asn700Lys) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000516 in 1,551,512 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a pathogenic outcome for this variant. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar. Another variant affecting the same amino acid position, but resulting in a different missense (i.e. N700S) has been classified as Uncertain significance.

Frequency

Genomes: 𝑓 0.0000066 ( 0 hom., cov: 33)

Exomes 𝑓: 0.0000050 ( 0 hom. )

Consequence

MYH13
NM_003802.3 missense

Scores

Clinical Significance

Not reported in ClinVar

Conservation

PhyloP100: -2.02

Publications

13 publications found

Variant links:

Genes affected

MYH13 (HGNC:7571): (myosin heavy chain 13) Predicted to enable microfilament motor activity. Predicted to be involved in muscle contraction. Predicted to act upstream of or within cellular response to starvation. Located in extracellular exosome. [provided by Alliance of Genome Resources, Apr 2022]

MYH13 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:

LOC107985004 (HGNC:):

LOC107985004 links:

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ACMG classification

Classification was made for transcript

Our verdict: Likely_benign. The variant received -2 ACMG points.

PP3

MetaRNN computational evidence supports a deleterious effect, 0.925

BS2

High AC in GnomAdExome4 at 7 AD gene.

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_003802.3. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Selected	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	MYH13	NM_003802.3	MANE Select	c.2100C>G	p.Asn700Lys	missense	Exon 19 of 41	NP_003793.2

Ensembl Transcripts

Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein
MYH13	ENST00000252172.9	TSL:1 MANE Select	c.2100C>G	p.Asn700Lys	missense	Exon 19 of 41	ENSP00000252172.4
MYH13	ENST00000621918.1	TSL:1	c.2100C>G	p.Asn700Lys	missense	Exon 17 of 39	ENSP00000480864.1
MYH13	ENST00000418404.8	TSL:5	c.2100C>G	p.Asn700Lys	missense	Exon 18 of 40	ENSP00000404570.3

Frequencies

GnomAD3 genomes

AF:

0.00000658

AC:

AN:

152080

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:

0.00

Gnomad SAS

AF:

0.00

Gnomad FIN

AF:

0.00

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.0000147

Gnomad OTH

AF:

0.00

GnomAD2 exomes

AF:

0.00000643

AC:

AN:

155548

AF XY:

0.00

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.00

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.0000165

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.00000500

AC:

AN:

1399432

Hom.:

Cov.:

AF XY:

0.00000580

AC XY:

AN XY:

690234

show subpopulations

African (AFR)

AF:

0.00

AC:

AN:

31606

American (AMR)

AF:

0.00

AC:

AN:

35722

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

25186

East Asian (EAS)

AF:

0.00

AC:

AN:

35750

South Asian (SAS)

AF:

0.00

AC:

AN:

79236

European-Finnish (FIN)

AF:

0.00

AC:

AN:

49270

Middle Eastern (MID)

AF:

0.00

AC:

AN:

5696

European-Non Finnish (NFE)

AF:

0.00000649

AC:

AN:

1078950

Other (OTH)

AF:

0.00

AC:

AN:

58016

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.596

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Exome Het

Variant carriers

<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:

0.00000658

AC:

AN:

152080

Hom.:

Cov.:

AF XY:

0.00

AC XY:

AN XY:

74266

show subpopulations

African (AFR)

AF:

0.00

AC:

AN:

41430

American (AMR)

AF:

0.00

AC:

AN:

15274

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

3470

East Asian (EAS)

AF:

0.00

AC:

AN:

5182

South Asian (SAS)

AF:

0.00

AC:

AN:

4832

European-Finnish (FIN)

AF:

0.00

AC:

AN:

10584

Middle Eastern (MID)

AF:

0.00

AC:

AN:

316

European-Non Finnish (NFE)

AF:

0.0000147

AC:

AN:

67998

Other (OTH)

AF:

0.00

AC:

AN:

2086

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.575

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Genome Het

Variant carriers

<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:

0.00

Hom.:

16704

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.9

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Pathogenic

1.0

BayesDel_addAF

Benign

-0.015

BayesDel_noAF

Benign

-0.25

CADD

Benign

(source)

DANN

Uncertain

1.0

DEOGEN2

Uncertain

0.79

Eigen

Benign

0.18

Eigen_PC

Benign

-0.090

FATHMM_MKL

Benign

0.39

LIST_S2

Pathogenic

0.98

M_CAP

Benign

0.015

MetaRNN

Pathogenic

0.92

MetaSVM

Uncertain

0.25

MutationAssessor

Pathogenic

3.6

PhyloP100

-2.0

PrimateAI

Pathogenic

0.83

PROVEAN

Pathogenic

-5.0

REVEL

Uncertain

0.49

Sift

Pathogenic

0.0

Sift4G

Uncertain

0.0020

Polyphen

1.0

Vest4

0.89

MutPred

0.79

Gain of MoRF binding (P = 0.031)

MVP

0.56

MPC

0.54

ClinPred

0.98

GERP RS

-1.6

Varity_R

0.88

gMVP

0.49

Mutation Taster

=62/38

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

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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