4-3473587-C-T

Variant names:

Variant summary

Our verdict is Benign. Variant got -14 ACMG points: 0P and 14B. BP4_StrongBP6_Very_StrongBP7BS2_Supporting

The NM_173660.5(DOK7):c.282C>T(p.His94His) variant causes a synonymous change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000527 in 1,608,080 control chromosomes in the GnomAD database, including 2 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Likely benign (★★).

Frequency

Genomes: 𝑓 0.00033 ( 0 hom., cov: 34)

Exomes 𝑓: 0.00055 ( 2 hom. )

Consequence

DOK7
NM_173660.5 synonymous

Scores

Clinical Significance

Likely benign criteria provided, multiple submitters, no conflicts B:5

Conservation

PhyloP100: -2.38

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 links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Benign. Variant got -14 ACMG points.

BP4

Computational evidence support a benign effect (BayesDel_noAF=-0.76).

BP6

Variant 4-3473587-C-T is Benign according to our data. Variant chr4-3473587-C-T is described in ClinVar as [Likely_benign]. Clinvar id is 262870.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars. Variant chr4-3473587-C-T is described in Lovd as [Likely_benign].

BP7

Synonymous conserved (PhyloP=-2.38 with no splicing effect.

BS2

High Homozygotes in GnomAdExome4 at 2 AR geneVariant has number of homozygotes lower than other variant known as pathogenic in the gene, so the strength is limited to Supporting.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
DOK7	NM_173660.5 link	c.282C>T	p.His94His	synonymous_variant	Exon 3 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.282C>T	p.His94His	synonymous_variant	Exon 3 of 7	1	NM_173660.5	ENSP00000344432.5		Q18PE1-1

Frequencies

GnomAD3 genomes

AF:

0.000328

AC:

AN:

152242

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.0000482

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.000131

Gnomad ASJ

AF:

0.00

Gnomad EAS

AF:

0.000192

Gnomad SAS

AF:

0.000620

Gnomad FIN

AF:

0.0000941

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.000529

Gnomad OTH

AF:

0.00239

GnomAD3 exomes

AF:

0.000480

AC:

116

AN:

241918

Hom.:

AF XY:

0.000468

AC XY:

AN XY:

132390

show subpopulations

Gnomad AFR exome

AF:

0.000135

Gnomad AMR exome

AF:

0.000412

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.000452

Gnomad SAS exome

AF:

0.000757

Gnomad FIN exome

AF:

0.0000477

Gnomad NFE exome

AF:

0.000582

Gnomad OTH exome

AF:

0.000851

GnomAD4 exome

AF:

0.000547

AC:

797

AN:

1455720

Hom.:

Cov.:

AF XY:

0.000546

AC XY:

395

AN XY:

723738

show subpopulations

Gnomad4 AFR exome

AF:

0.000120

Gnomad4 AMR exome

AF:

0.000405

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.000126

Gnomad4 SAS exome

AF:

0.000825

Gnomad4 FIN exome

AF:

0.0000190

Gnomad4 NFE exome

AF:

0.000588

Gnomad4 OTH exome

AF:

0.000634

GnomAD4 genome

AF:

0.000328

AC:

AN:

152360

Hom.:

Cov.:

AF XY:

0.000349

AC XY:

AN XY:

74498

show subpopulations

Gnomad4 AFR

AF:

0.0000481

Gnomad4 AMR

AF:

0.000131

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.000193

Gnomad4 SAS

AF:

0.000621

Gnomad4 FIN

AF:

0.0000941

Gnomad4 NFE

AF:

0.000529

Gnomad4 OTH

AF:

0.00236

Alfa

AF:

0.000557

Hom.:

Bravo

AF:

0.000370

ClinVar

Significance: Likely benign

Submissions summary: Benign:5

Revision: criteria provided, multiple submitters, no conflicts

LINK: link

Submissions by phenotype

not provided

Benign:3

Apr 28, 2021

GeneDx

Significance: Likely benign

Review Status: criteria provided, single submitter

Collection Method: clinical testing

- -

Jul 01, 2024

CeGaT Center for Human Genetics Tuebingen

Significance: Likely benign

Review Status: criteria provided, single submitter

Collection Method: clinical testing

DOK7: BP4, BP7 -

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: Likely benign

Review Status: criteria provided, single submitter

Collection Method: clinical testing

- -

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

Benign:1

Feb 01, 2025

Labcorp Genetics (formerly Invitae), Labcorp

Significance: Likely 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

-0.76

CADD

Benign

0.19

DANN

Benign

0.55

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

LitVar

Below is the list of publications found by LitVar. It may be empty.

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

LitVar

Other links and lift over