dbSNP rs145656924: MYLK2:p.Glu170Lys (chr20-31821473-G-A) – ACMG Classification: Benign (-16 pts)

Variant summary

Our verdict is Benign. The variant received -16 ACMG points: 0P and 16B. BP4_StrongBP6_Very_StrongBS2

The NM_033118.4(MYLK2):c.508G>A(p.Glu170Lys) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000286 in 1,613,834 control chromosomes in the GnomAD database, including 3 homozygotes. In-silico tool predicts a benign outcome for this variant. 15/22 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Likely benign (★★).

Frequency

Genomes: 𝑓 0.0016 ( 2 hom., cov: 33)

Exomes 𝑓: 0.00015 ( 1 hom. )

Consequence

MYLK2
NM_033118.4 missense

Scores

Clinical Significance

Benign/Likely benign criteria provided, multiple submitters, no conflicts B:9

Conservation

PhyloP100: 3.01

Publications

3 publications found

Variant links:

Genes affected

MYLK2 (HGNC:16243): (myosin light chain kinase 2) This gene encodes a myosin light chain kinase, a calcium/calmodulin dependent enzyme, that is exclusively expressed in adult skeletal muscle. [provided by RefSeq, Jul 2008]

MYLK2 Gene-Disease associations (from GenCC):

hypertrophic cardiomyopathy 1
Inheritance: AD Classification: LIMITED Submitted by: Ambry Genetics, Labcorp Genetics (formerly Invitae)
hypertrophic cardiomyopathy
Inheritance: AD Classification: NO_KNOWN Submitted by: ClinGen

MYLK2 links:

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Benign. The variant received -16 ACMG points.

BP4

Computational evidence support a benign effect (MetaRNN=0.0048090816).

BP6

Variant 20-31821473-G-A is Benign according to our data. Variant chr20-31821473-G-A is described in ClinVar as Benign/Likely_benign. ClinVar VariationId is 178088.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.

BS2

High AC in GnomAd4 at 240 AD gene.

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_033118.4. 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
	MYLK2	NM_033118.4	MANE Select	c.508G>A	p.Glu170Lys	missense	Exon 4 of 13	NP_149109.1	Q9H1R3

Ensembl Transcripts

Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
MYLK2	ENST00000375985.5	TSL:1 MANE Select	c.508G>A	p.Glu170Lys	missense	Exon 4 of 13	ENSP00000365152.4	Q9H1R3
MYLK2	ENST00000375994.6	TSL:1	c.508G>A	p.Glu170Lys	missense	Exon 3 of 12	ENSP00000365162.2	Q9H1R3
MYLK2	ENST00000965978.1		c.508G>A	p.Glu170Lys	missense	Exon 4 of 13	ENSP00000636037.1

Frequencies

GnomAD3 genomes

AF:

0.00158

AC:

241

AN:

152220

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.00565

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.000458

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:

0.00

Gnomad OTH

AF:

0.00

GnomAD2 exomes

AF:

0.000398

AC:

100

AN:

251022

AF XY:

0.000272

show subpopulations

Gnomad AFR exome

AF:

0.00579

Gnomad AMR exome

AF:

0.000145

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.00

Gnomad OTH exome

AF:

0.000163

GnomAD4 exome

AF:

0.000152

AC:

222

AN:

1461496

Hom.:

Cov.:

AF XY:

0.000136

AC XY:

AN XY:

727044

show subpopulations

African (AFR)

AF:

0.00523

AC:

175

AN:

33480

American (AMR)

AF:

0.000246

AC:

AN:

44720

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

26136

East Asian (EAS)

AF:

0.0000252

AC:

AN:

39700

South Asian (SAS)

AF:

0.0000116

AC:

AN:

86256

European-Finnish (FIN)

AF:

0.0000189

AC:

AN:

53050

Middle Eastern (MID)

AF:

0.00

AC:

AN:

5762

European-Non Finnish (NFE)

AF:

0.00000540

AC:

AN:

1112006

Other (OTH)

AF:

0.000447

AC:

AN:

60386

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.487

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Exome Het

Exome Hom

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:

0.00158

AC:

240

AN:

152338

Hom.:

Cov.:

AF XY:

0.00150

AC XY:

112

AN XY:

74492

show subpopulations

African (AFR)

AF:

0.00561

AC:

233

AN:

41558

American (AMR)

AF:

0.000457

AC:

AN:

15304

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

3472

East Asian (EAS)

AF:

0.00

AC:

AN:

5192

South Asian (SAS)

AF:

0.00

AC:

AN:

4828

European-Finnish (FIN)

AF:

0.00

AC:

AN:

10626

Middle Eastern (MID)

AF:

0.00

AC:

AN:

294

European-Non Finnish (NFE)

AF:

0.00

AC:

AN:

68038

Other (OTH)

AF:

0.00

AC:

AN:

2114

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.497

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Genome Het

Genome Hom

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:

0.000659

Hom.:

Bravo

AF:

0.00179

ESP6500AA

AF:

0.00613

AC:

ESP6500EA

AF:

0.00

AC:

ExAC

AF:

0.000601

AC:

Asia WGS

AF:

0.000289

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 (4)

Hypertrophic cardiomyopathy 1 (2)

not specified (2)

Cardiomyopathy (1)

Computational scores

Source: dbNSFP v4.9

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.070

BayesDel_addAF

Benign

-0.34

BayesDel_noAF

Benign

-0.25

CADD

Benign

(source)

DANN

Uncertain

1.0

DEOGEN2

Benign

0.27

Eigen

Benign

-0.12

Eigen_PC

Benign

-0.16

FATHMM_MKL

Benign

0.33

LIST_S2

Benign

0.62

M_CAP

Benign

0.027

MetaRNN

Benign

0.0048

MetaSVM

Benign

-0.97

MutationAssessor

Uncertain

2.2

PhyloP100

3.0

PrimateAI

Benign

0.36

PROVEAN

Benign

-1.0

REVEL

Benign

0.18

Sift

Uncertain

0.0030

Sift4G

Benign

0.45

Polyphen

0.98

Vest4

0.35

MVP

0.73

MPC

0.19

ClinPred

0.018

GERP RS

4.5

Varity_R

0.087

gMVP

0.28

Mutation Taster

=99/1

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.

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