rs200407250

Variant summary

Our verdict is Uncertain significance. The variant received 0 ACMG points: 2P and 2B. PM2BP4_Moderate

The NM_173660.5(DOK7):​c.761C>G​(p.Pro254Arg) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000349 in 1,574,152 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 12/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★★). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. P254L) has been classified as Uncertain significance.

Frequency

Genomes: 𝑓 0.000033 ( 0 hom., cov: 32)
Exomes 𝑓: 0.000035 ( 0 hom. )

Consequence

DOK7
NM_173660.5 missense

Scores

4
13

Clinical Significance

Uncertain significance criteria provided, multiple submitters, no conflicts U:2

Conservation

PhyloP100: 1.06

Publications

1 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: Uncertain_significance. The variant received 0 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
BP4
Computational evidence support a benign effect (MetaRNN=0.13935772).

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.761C>Gp.Pro254Arg
missense
Exon 6 of 7NP_775931.3
DOK7
NM_001301071.2
c.761C>Gp.Pro254Arg
missense
Exon 6 of 10NP_001288000.1
DOK7
NM_001363811.2
c.329C>Gp.Pro110Arg
missense
Exon 4 of 8NP_001350740.1

Ensembl Transcripts

Selected
GeneTranscriptTagsHGVScHGVSpEffectExon RankProteinUniProt
DOK7
ENST00000340083.6
TSL:1 MANE Select
c.761C>Gp.Pro254Arg
missense
Exon 6 of 7ENSP00000344432.5
DOK7
ENST00000513995.1
TSL:1
n.419C>G
non_coding_transcript_exon
Exon 2 of 3
DOK7
ENST00000643608.1
c.329C>Gp.Pro110Arg
missense
Exon 4 of 8ENSP00000495701.1

Frequencies

GnomAD3 genomes
AF:
0.0000263
AC:
4
AN:
152040
Hom.:
0
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.0000725
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:
0.0000322
AC:
6
AN:
186064
AF XY:
0.0000603
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.00
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.0000700
Gnomad FIN exome
AF:
0.0000604
Gnomad NFE exome
AF:
0.0000129
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.0000352
AC:
50
AN:
1421994
Hom.:
0
Cov.:
32
AF XY:
0.0000384
AC XY:
27
AN XY:
703518
show subpopulations
African (AFR)
AF:
0.000122
AC:
4
AN:
32754
American (AMR)
AF:
0.00
AC:
0
AN:
39474
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
25364
East Asian (EAS)
AF:
0.0000265
AC:
1
AN:
37666
South Asian (SAS)
AF:
0.0000618
AC:
5
AN:
80962
European-Finnish (FIN)
AF:
0.0000403
AC:
2
AN:
49574
Middle Eastern (MID)
AF:
0.000350
AC:
2
AN:
5716
European-Non Finnish (NFE)
AF:
0.0000256
AC:
28
AN:
1091624
Other (OTH)
AF:
0.000136
AC:
8
AN:
58860
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.476
Heterozygous variant carriers
0
4
8
11
15
19
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:
0.0000329
AC:
5
AN:
152158
Hom.:
0
Cov.:
32
AF XY:
0.0000269
AC XY:
2
AN XY:
74406
show subpopulations
African (AFR)
AF:
0.0000964
AC:
4
AN:
41504
American (AMR)
AF:
0.00
AC:
0
AN:
15298
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
3470
East Asian (EAS)
AF:
0.00
AC:
0
AN:
5168
South Asian (SAS)
AF:
0.00
AC:
0
AN:
4818
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
10618
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
294
European-Non Finnish (NFE)
AF:
0.0000147
AC:
1
AN:
67964
Other (OTH)
AF:
0.00
AC:
0
AN:
2112
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.512
Heterozygous variant carriers
0
1
1
2
2
3
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance
Alfa
AF:
0.00
Hom.:
0
Bravo
AF:
0.0000453
ExAC
AF:
0.0000253
AC:
3

ClinVar

ClinVar submissions as Germline

Significance:Uncertain significance
Revision:criteria provided, multiple submitters, no conflicts
View on ClinVar
Pathogenic
VUS
Benign
Condition
-
1
-
Fetal akinesia deformation sequence 1;C1850792:Congenital myasthenic syndrome 10 (1)
-
1
-
not provided (1)

Computational scores

Source: dbNSFP v4.9

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.093
BayesDel_addAF
Benign
-0.31
T
BayesDel_noAF
Benign
-0.45
CADD
Benign
15
DANN
Uncertain
0.98
DEOGEN2
Benign
0.17
T
Eigen
Benign
-0.35
Eigen_PC
Benign
-0.40
FATHMM_MKL
Benign
0.065
N
LIST_S2
Benign
0.63
T
M_CAP
Uncertain
0.12
D
MetaRNN
Benign
0.14
T
MetaSVM
Benign
-0.94
T
PhyloP100
1.1
PrimateAI
Uncertain
0.64
T
PROVEAN
Uncertain
-2.9
D
REVEL
Benign
0.13
Sift
Benign
0.11
T
Sift4G
Benign
0.065
T
Polyphen
0.64
P
Vest4
0.21
MVP
0.71
MPC
0.016
ClinPred
0.12
T
GERP RS
3.5
Varity_R
0.070
gMVP
0.27
Mutation Taster
=85/15
polymorphism

Splicing

Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
0.020
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: rs200407250; hg19: chr4-3491512; API