chr4-3485545-G-C

Position:

chr4-3485545-G-C

Variant summary

Our verdict is Pathogenic. Variant got 12 ACMG points: 12P and 0B. PM1PM2PM5PP3_StrongPP5_Moderate

The NM_173660.5(DOK7):c.539G>C(p.Gly180Ala) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.00000345 in 1,449,886 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a pathogenic outcome for this variant. Variant has been reported in ClinVar as Likely pathogenic (★). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. G180V) has been classified as Likely pathogenic.

Frequency

Genomes: not found (cov: 34)

Exomes 𝑓: 0.0000034 ( 0 hom. )

Consequence

DOK7
NM_173660.5 missense

Scores

Clinical Significance

Likely pathogenic criteria provided, single submitter P:2

Conservation

PhyloP100: 7.34

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:

DOK7 (HGNC:):

DOK7 links:

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ACMG classification

Classification made for transcript

Verdict is Pathogenic. Variant got 12 ACMG points.

PM1

In a domain IRS-type PTB (size 105) in uniprot entity DOK7_HUMAN there are 29 pathogenic changes around while only 0 benign (100%) in NM_173660.5

PM2

Very rare variant in population databases, with high coverage;

PM5

Other missense variant is known to change same aminoacid residue: Variant chrnull-null-null-null is described in UniProt as null.

PP3

MetaRNN computational evidence supports a deleterious effect, 0.968

PP5

Variant 4-3485545-G-C is Pathogenic according to our data. Variant chr4-3485545-G-C is described in ClinVar as [Likely_pathogenic]. Clinvar id is 1278.Status of the report is criteria_provided_single_submitter, 1 stars. Variant chr4-3485545-G-C is described in Lovd as [Pathogenic]. Variant chr4-3485545-G-C is described in Lovd as [Pathogenic].

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
DOK7	NM_173660.5 linkuse as main transcript	c.539G>C	p.Gly180Ala	missense_variant	5/7	ENST00000340083.6	NP_775931.3	Q18PE1-1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris	UniProt
DOK7	ENST00000340083.6 linkuse as main transcript	c.539G>C	p.Gly180Ala	missense_variant	5/7	1	NM_173660.5	ENSP00000344432.5		Q18PE1-1

Frequencies

GnomAD3 genomes

Cov.:

GnomAD3 exomes

AF:

0.0000123

AC:

AN:

243482

Hom.:

AF XY:

0.0000152

AC XY:

AN XY:

131944

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.00

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.000172

Gnomad SAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.00

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.00000345

AC:

AN:

1449886

Hom.:

Cov.:

AF XY:

0.00000416

AC XY:

AN XY:

720698

show subpopulations

Gnomad4 AFR exome

AF:

0.00

Gnomad4 AMR exome

AF:

0.00

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.000129

Gnomad4 SAS exome

AF:

0.00

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.00

Gnomad4 OTH exome

AF:

0.00

GnomAD4 genome

Cov.:

ExAC

AF:

0.0000247

AC:

ClinVar

Significance: Likely pathogenic

Submissions summary: Pathogenic:2

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

Congenital myasthenic syndrome 10

Pathogenic:1

Pathogenic, no assertion criteria provided

literature only

OMIM

Sep 29, 2006

- -

not provided

Pathogenic:1

Likely pathogenic, criteria provided, single submitter

clinical testing

GeneDx

Nov 26, 2024

Published functional studies demonstrate that this variant affects the acetylcholine receptor clustering pathway (PMID: 22661499); In silico analysis supports that this missense variant has a deleterious effect on protein structure/function; This variant is associated with the following publications: (PMID: 22661499, 16917026, 20603078, 36579833, 26198629, 20012313) -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Pathogenic

0.81

BayesDel_addAF

Pathogenic

0.31

BayesDel_noAF

Pathogenic

0.47

CADD

Pathogenic

DANN

Benign

0.93

DEOGEN2

Pathogenic

0.94

D;.

Eigen

Uncertain

0.21

Eigen_PC

Benign

0.14

FATHMM_MKL

Pathogenic

0.97

LIST_S2

Uncertain

0.97

D;D

M_CAP

Pathogenic

0.41

MetaRNN

Pathogenic

0.97

D;D

MetaSVM

Pathogenic

0.89

PrimateAI

Pathogenic

0.82

PROVEAN

Pathogenic

-4.9

D;.

REVEL

Pathogenic

0.84

Sift

Uncertain

0.010

D;.

Sift4G

Pathogenic

0.0

D;.

Polyphen

0.80

P;.

Vest4

0.96

MutPred

0.87

Loss of loop (P = 0.0073);.;

MVP

0.93

MPC

0.019

ClinPred

0.95

GERP RS

3.8

Varity_R

0.76

gMVP

0.88

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