rs142821143

Variant summary

Our verdict is Likely benign. The variant received -3 ACMG points: 0P and 3B. BP4_ModerateBP6

The NM_173660.5(DOK7):​c.781C>G​(p.Arg261Gly) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000267 in 1,612,640 control chromosomes in the GnomAD database, including 1 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Conflicting classifications of pathogenicity (no stars). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. R261C) has been classified as Benign.

Frequency

Genomes: 𝑓 0.00014 ( 1 hom., cov: 34)
Exomes 𝑓: 0.000015 ( 0 hom. )

Consequence

DOK7
NM_173660.5 missense

Scores

2
10
7

Clinical Significance

Conflicting classifications of pathogenicity criteria provided, conflicting classifications U:1B:1

Conservation

PhyloP100: 0.788

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

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Likely_benign. The variant received -3 ACMG points.

BP4
Computational evidence support a benign effect (MetaRNN=0.16005328).
BP6
Variant 4-3492767-C-G is Benign according to our data. Variant chr4-3492767-C-G is described in ClinVar as Conflicting_classifications_of_pathogenicity. ClinVar VariationId is 465688.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
DOK7NM_173660.5 linkc.781C>G p.Arg261Gly 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
DOK7ENST00000340083.6 linkc.781C>G p.Arg261Gly missense_variant Exon 7 of 7 1 NM_173660.5 ENSP00000344432.5 Q18PE1-1

Frequencies

GnomAD3 genomes
AF:
0.000138
AC:
21
AN:
152150
Hom.:
1
Cov.:
34
show subpopulations
Gnomad AFR
AF:
0.000483
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:
0.0000566
AC:
14
AN:
247490
AF XY:
0.0000223
show subpopulations
Gnomad AFR exome
AF:
0.000434
Gnomad AMR exome
AF:
0.000116
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.0000272
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.0000151
AC:
22
AN:
1460372
Hom.:
0
Cov.:
97
AF XY:
0.00000826
AC XY:
6
AN XY:
726516
show subpopulations
African (AFR)
AF:
0.000329
AC:
11
AN:
33478
American (AMR)
AF:
0.000134
AC:
6
AN:
44706
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
26124
East Asian (EAS)
AF:
0.00
AC:
0
AN:
39700
South Asian (SAS)
AF:
0.00
AC:
0
AN:
86258
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
52002
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
5768
European-Non Finnish (NFE)
AF:
0.00000270
AC:
3
AN:
1111968
Other (OTH)
AF:
0.0000331
AC:
2
AN:
60368
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.468
Heterozygous variant carriers
0
2
3
5
6
8
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Exome Het
Variant carriers
0
2
4
6
8
10
<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:
0.000138
AC:
21
AN:
152268
Hom.:
1
Cov.:
34
AF XY:
0.000148
AC XY:
11
AN XY:
74442
show subpopulations
African (AFR)
AF:
0.000481
AC:
20
AN:
41548
American (AMR)
AF:
0.00
AC:
0
AN:
15300
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
3472
East Asian (EAS)
AF:
0.00
AC:
0
AN:
5174
South Asian (SAS)
AF:
0.00
AC:
0
AN:
4832
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
10620
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
294
European-Non Finnish (NFE)
AF:
0.0000147
AC:
1
AN:
68002
Other (OTH)
AF:
0.00
AC:
0
AN:
2114
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.541
Heterozygous variant carriers
0
1
3
4
6
7
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Genome Het
Variant carriers
0
2
4
6
8
10
<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.:
2
Bravo
AF:
0.000159
ExAC
AF:
0.0000660
AC:
8

ClinVar

Significance: Conflicting classifications of pathogenicity
Submissions summary: Uncertain:1Benign:1
Revision: criteria provided, conflicting classifications
LINK: link

Submissions by phenotype

not provided Uncertain:1
Aug 19, 2019
Revvity Omics, Revvity
Significance:Uncertain significance
Review Status:criteria provided, single submitter
Collection Method:clinical testing

- -

Fetal akinesia deformation sequence 1;C1850792:Congenital myasthenic syndrome 10 Benign:1
Oct 18, 2024
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
AlphaMissense
Benign
0.15
BayesDel_addAF
Benign
-0.13
T
BayesDel_noAF
Uncertain
-0.070
CADD
Uncertain
24
DANN
Uncertain
1.0
DEOGEN2
Uncertain
0.54
D;.
Eigen
Uncertain
0.20
Eigen_PC
Benign
0.12
FATHMM_MKL
Benign
0.45
N
LIST_S2
Uncertain
0.94
D;D
M_CAP
Pathogenic
0.64
D
MetaRNN
Benign
0.16
T;T
MetaSVM
Uncertain
0.056
D
MutationAssessor
Uncertain
2.4
M;.
PhyloP100
0.79
PrimateAI
Uncertain
0.70
T
PROVEAN
Pathogenic
-4.5
D;.
REVEL
Uncertain
0.36
Sift
Uncertain
0.0080
D;.
Sift4G
Benign
0.083
T;.
Polyphen
1.0
D;.
Vest4
0.51
MutPred
0.25
Gain of glycosylation at S262 (P = 0.0087);.;
MVP
0.82
MPC
0.015
ClinPred
0.16
T
GERP RS
1.9
Varity_R
0.34
gMVP
0.43
Mutation Taster
=90/10
polymorphism

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

Other links and lift over

dbSNP: rs142821143; hg19: chr4-3494494; API