4-3493130-G-A

Variant names:

Variant summary

Our verdict is Benign. The variant received -20 ACMG points: 0P and 20B. BP4_StrongBP6_Very_StrongBS1BS2

The NM_173660.5(DOK7):c.1144G>A(p.Glu382Lys) variant causes a missense change. The variant allele was found at a frequency of 0.000353 in 1,595,634 control chromosomes in the GnomAD database, including 4 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Likely benign (★★). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. E382A) has been classified as Uncertain significance.

Frequency

Genomes: 𝑓 0.00026 ( 0 hom., cov: 34)

Exomes 𝑓: 0.00036 ( 4 hom. )

Consequence

DOK7
NM_173660.5 missense

Scores

Clinical Significance

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

Conservation

PhyloP100: 6.02

Publications

2 publications found

Variant links:

Genes affected

DOK7 (HGNC:26594): (docking protein 7) The protein encoded by this gene is essential for neuromuscular synaptogenesis. The protein functions in aneural activation of muscle-specific receptor kinase, which is required for postsynaptic differentiation, and in the subsequent clustering of the acetylcholine receptor in myotubes. This protein can also induce autophosphorylation of muscle-specific receptor kinase. Mutations in this gene are a cause of familial limb-girdle myasthenia autosomal recessive, which is also known as congenital myasthenic syndrome type 1B. Alternative splicing results in multiple transcript variants. [provided by RefSeq, Sep 2009]

DOK7 Gene-Disease associations (from GenCC):

congenital myasthenic syndrome 10
Inheritance: AR Classification: DEFINITIVE, STRONG Submitted by: Ambry Genetics, Genomics England PanelApp, Labcorp Genetics (formerly Invitae), PanelApp Australia
fetal akinesia deformation sequence 3
Inheritance: AR Classification: STRONG, LIMITED Submitted by: Ambry Genetics, Labcorp Genetics (formerly Invitae)
fetal akinesia deformation sequence 1
Inheritance: AR Classification: SUPPORTIVE Submitted by: Orphanet
postsynaptic congenital myasthenic syndrome
Inheritance: AR Classification: SUPPORTIVE Submitted by: Orphanet

DOK7 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 (MetaRNN=0.010363132).

BP6

Variant 4-3493130-G-A is Benign according to our data. Variant chr4-3493130-G-A is described in ClinVar as Likely_benign. ClinVar VariationId is 534130.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.

BS1

Variant frequency is greater than expected in population sas. GnomAd4 allele frequency = 0.000256 (39/152316) while in subpopulation SAS AF = 0.00539 (26/4824). AF 95% confidence interval is 0.00378. There are 0 homozygotes in GnomAd4. There are 23 alleles in the male GnomAd4 subpopulation. Median coverage is 34. This position passed quality control check.

BS2

High Homozygotes in GnomAdExome4 at 4 AR gene

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
DOK7	NM_173660.5 link	c.1144G>A	p.Glu382Lys	missense_variant	Exon 7 of 7	ENST00000340083.6	NP_775931.3	Q18PE1-1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
DOK7	ENST00000340083.6 link	c.1144G>A	p.Glu382Lys	missense_variant	Exon 7 of 7	1	NM_173660.5	ENSP00000344432.5		Q18PE1-1

Frequencies

GnomAD3 genomes

AF:

0.000256

AC:

AN:

152198

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.0000724

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.000262

Gnomad ASJ

AF:

0.00

Gnomad EAS

AF:

0.00

Gnomad SAS

AF:

0.00539

Gnomad FIN

AF:

0.00

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.0000882

Gnomad OTH

AF:

0.00

GnomAD2 exomes

AF:

0.000745

AC:

156

AN:

209438

AF XY:

0.000840

show subpopulations

Gnomad AFR exome

AF:

0.000253

Gnomad AMR exome

AF:

0.000662

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.0000639

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.0000871

Gnomad OTH exome

AF:

0.000764

GnomAD4 exome

AF:

0.000363

AC:

524

AN:

1443318

Hom.:

Cov.:

113

AF XY:

0.000455

AC XY:

326

AN XY:

717030

show subpopulations

African (AFR)

AF:

0.00

AC:

AN:

33162

American (AMR)

AF:

0.000421

AC:

AN:

42744

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

25814

East Asian (EAS)

AF:

0.0000518

AC:

AN:

38588

South Asian (SAS)

AF:

0.00417

AC:

351

AN:

84118

European-Finnish (FIN)

AF:

0.00

AC:

AN:

47734

Middle Eastern (MID)

AF:

0.000869

AC:

AN:

5752

European-Non Finnish (NFE)

AF:

0.000108

AC:

119

AN:

1105780

Other (OTH)

AF:

0.000486

AC:

AN:

59626

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.507

Heterozygous variant carriers

131

175

219

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Exome Het

Exome Hom

Variant carriers

100

<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:

0.000256

AC:

AN:

152316

Hom.:

Cov.:

AF XY:

0.000309

AC XY:

AN XY:

74488

show subpopulations

African (AFR)

AF:

0.0000722

AC:

AN:

41570

American (AMR)

AF:

0.000261

AC:

AN:

15312

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

3470

East Asian (EAS)

AF:

0.00

AC:

AN:

5174

South Asian (SAS)

AF:

0.00539

AC:

AN:

4824

European-Finnish (FIN)

AF:

0.00

AC:

AN:

10622

Middle Eastern (MID)

AF:

0.00

AC:

AN:

294

European-Non Finnish (NFE)

AF:

0.0000882

AC:

AN:

68024

Other (OTH)

AF:

0.00

AC:

AN:

2114

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.489

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:

0.0000894

Hom.:

Bravo

AF:

0.000121

ExAC

AF:

0.000677

AC:

Asia WGS

AF:

0.00202

AC:

AN:

3478

ClinVar

Significance: Likely benign

Submissions summary: Benign:2

Revision: criteria provided, multiple submitters, no conflicts

LINK: link

Submissions by phenotype

Fetal akinesia deformation sequence 1;C1850792:Congenital myasthenic syndrome 10

Benign:1

Jan 23, 2025

Labcorp Genetics (formerly Invitae), Labcorp

Significance:Likely benign

Review Status:criteria provided, single submitter

Collection Method:clinical testing

- -

not provided

Benign:1

Feb 25, 2021

GeneDx

Significance:Likely benign

Review Status:criteria provided, single submitter

Collection Method:clinical testing

- -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.11

BayesDel_addAF

Benign

-0.33

BayesDel_noAF

Benign

-0.25

CADD

Uncertain

(source)

DANN

Uncertain

1.0

DEOGEN2

Benign

0.18

T;.;.

Eigen

Uncertain

0.24

Eigen_PC

Benign

0.16

FATHMM_MKL

Benign

0.73

LIST_S2

Benign

0.78

T;T;T

M_CAP

Uncertain

0.23

MetaRNN

Benign

0.010

T;T;T

MetaSVM

Benign

-0.53

MutationAssessor

Uncertain

2.3

M;.;.

PhyloP100

6.0

PrimateAI

Uncertain

0.72

PROVEAN

Uncertain

-2.4

N;.;.

REVEL

Benign

0.28

Sift

Uncertain

0.0090

D;.;.

Sift4G

Benign

0.12

T;.;.

Polyphen

0.65

P;.;.

Vest4

0.22

MVP

0.82

MPC

0.010

ClinPred

0.057

GERP RS

3.8

Varity_R

0.21

gMVP

0.16

Mutation Taster

=100/0

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

Transcripts

RefSeq

Ensembl

Frequencies

Age Distribution

Age Distribution

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

Other links and lift over