rs377555406

Variant summary

Our verdict is Likely benign. The variant received -5 ACMG points: 0P and 5B. BP4_StrongBP6

The NM_173660.5(DOK7):​c.1279G>A​(p.Gly427Ser) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000745 in 1,611,516 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 17/22 in silico tools predict 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. G427R) has been classified as Uncertain significance.

Frequency

Genomes: 𝑓 0.00018 ( 0 hom., cov: 34)
Exomes 𝑓: 0.000063 ( 0 hom. )

Consequence

DOK7
NM_173660.5 missense

Scores

18

Clinical Significance

Conflicting classifications of pathogenicity criteria provided, conflicting classifications U:2B:1

Conservation

PhyloP100: -0.285

Publications

0 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 -5 ACMG points.

BP4
Computational evidence support a benign effect (MetaRNN=0.034209758).
BP6
Variant 4-3493265-G-A is Benign according to our data. Variant chr4-3493265-G-A is described in ClinVar as Conflicting_classifications_of_pathogenicity. ClinVar VariationId is 465672.

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_173660.5. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Selected
GeneTranscriptTagsHGVScHGVSpEffectExon RankProteinUniProt
DOK7
NM_173660.5
MANE Select
c.1279G>Ap.Gly427Ser
missense
Exon 7 of 7NP_775931.3
DOK7
NM_001301071.2
c.1279G>Ap.Gly427Ser
missense
Exon 7 of 10NP_001288000.1
DOK7
NM_001363811.2
c.847G>Ap.Gly283Ser
missense
Exon 5 of 8NP_001350740.1

Ensembl Transcripts

Selected
GeneTranscriptTagsHGVScHGVSpEffectExon RankProteinUniProt
DOK7
ENST00000340083.6
TSL:1 MANE Select
c.1279G>Ap.Gly427Ser
missense
Exon 7 of 7ENSP00000344432.5
DOK7
ENST00000643608.1
c.847G>Ap.Gly283Ser
missense
Exon 5 of 8ENSP00000495701.1
DOK7
ENST00000515886.5
TSL:2
c.349G>Ap.Gly117Ser
missense
Exon 4 of 4ENSP00000492194.1

Frequencies

GnomAD3 genomes
AF:
0.000184
AC:
28
AN:
152210
Hom.:
0
Cov.:
34
show subpopulations
Gnomad AFR
AF:
0.000458
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:
0.000118
Gnomad OTH
AF:
0.000478
GnomAD2 exomes
AF:
0.0000552
AC:
13
AN:
235352
AF XY:
0.0000463
show subpopulations
Gnomad AFR exome
AF:
0.000280
Gnomad AMR exome
AF:
0.0000293
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.0000486
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.0000630
AC:
92
AN:
1459188
Hom.:
0
Cov.:
95
AF XY:
0.0000579
AC XY:
42
AN XY:
725828
show subpopulations
African (AFR)
AF:
0.000568
AC:
19
AN:
33460
American (AMR)
AF:
0.0000224
AC:
1
AN:
44638
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
26078
East Asian (EAS)
AF:
0.0000252
AC:
1
AN:
39668
South Asian (SAS)
AF:
0.0000116
AC:
1
AN:
86096
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
51768
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
5766
European-Non Finnish (NFE)
AF:
0.0000576
AC:
64
AN:
1111456
Other (OTH)
AF:
0.0000996
AC:
6
AN:
60258
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.500
Heterozygous variant carriers
0
8
15
23
30
38
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Exome Het
Variant carriers
0
4
8
12
16
20
<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:
0.000184
AC:
28
AN:
152328
Hom.:
0
Cov.:
34
AF XY:
0.000188
AC XY:
14
AN XY:
74480
show subpopulations
African (AFR)
AF:
0.000457
AC:
19
AN:
41582
American (AMR)
AF:
0.00
AC:
0
AN:
15310
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
3472
East Asian (EAS)
AF:
0.00
AC:
0
AN:
5184
South Asian (SAS)
AF:
0.00
AC:
0
AN:
4828
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:
0.000118
AC:
8
AN:
68012
Other (OTH)
AF:
0.000473
AC:
1
AN:
2114
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.530
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

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:
0.0000565
Hom.:
0
Bravo
AF:
0.000234
ExAC
AF:
0.0000665
AC:
8
EpiCase
AF:
0.0000545
EpiControl
AF:
0.0000595

ClinVar

ClinVar submissions as Germline

Significance:Conflicting classifications of pathogenicity
Revision:criteria provided, conflicting classifications
View on ClinVar
Pathogenic
VUS
Benign
Condition
-
-
1
Fetal akinesia deformation sequence 1;C1850792:Congenital myasthenic syndrome 10 (1)
-
1
-
Inborn genetic diseases (1)
-
1
-
not provided (1)

Computational scores

Source: dbNSFP v4.9

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.079
BayesDel_addAF
Benign
-0.46
T
BayesDel_noAF
Benign
-0.54
CADD
Benign
5.9
DANN
Benign
0.34
DEOGEN2
Benign
0.029
T
Eigen
Benign
-1.0
Eigen_PC
Benign
-1.1
FATHMM_MKL
Benign
0.017
N
LIST_S2
Benign
0.39
T
M_CAP
Benign
0.034
D
MetaRNN
Benign
0.034
T
MetaSVM
Benign
-1.0
T
MutationAssessor
Benign
0.0
N
PhyloP100
-0.28
PrimateAI
Benign
0.46
T
PROVEAN
Benign
-0.33
N
REVEL
Benign
0.044
Sift
Benign
0.40
T
Sift4G
Benign
1.0
T
Polyphen
0.0030
B
Vest4
0.036
MVP
0.46
MPC
0.0045
ClinPred
0.0086
T
GERP RS
1.9
Varity_R
0.033
gMVP
0.11
Mutation Taster
=97/3
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: rs377555406; hg19: chr4-3494992; COSMIC: COSV60772347; COSMIC: COSV60772347; API