rs373864257

Variant summary

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

The NM_173660.5(DOK7):​c.1346C>T​(p.Thr449Met) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000831 in 1,601,106 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 14/22 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Conflicting classifications of pathogenicity (no stars). Synonymous variant affecting the same amino acid position (i.e. T449T) has been classified as Likely benign.

Frequency

Genomes: 𝑓 0.00012 ( 0 hom., cov: 34)
Exomes 𝑓: 0.000079 ( 0 hom. )

Consequence

DOK7
NM_173660.5 missense

Scores

4
14

Clinical Significance

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

Conservation

PhyloP100: 0.137

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: ClinGen, Labcorp Genetics (formerly Invitae), Genomics England PanelApp, Ambry Genetics
  • fetal akinesia deformation sequence 3
    Inheritance: AR Classification: STRONG, LIMITED Submitted by: Labcorp Genetics (formerly Invitae), Ambry Genetics
  • 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=0.052502096).
BP6
Variant 4-3493332-C-T is Benign according to our data. Variant chr4-3493332-C-T is described in ClinVar as Conflicting_classifications_of_pathogenicity. ClinVar VariationId is 465676.

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

Sel.
GeneTranscriptTagsHGVScHGVSpEffectExon RankProteinUniProt
DOK7
NM_173660.5
MANE Select
c.1346C>Tp.Thr449Met
missense
Exon 7 of 7NP_775931.3
DOK7
NM_001301071.2
c.1346C>Tp.Thr449Met
missense
Exon 7 of 10NP_001288000.1Q18PE1-3
DOK7
NM_001363811.2
c.914C>Tp.Thr305Met
missense
Exon 5 of 8NP_001350740.1A0A2R8Y701

Ensembl Transcripts

Sel.
GeneTranscriptTagsHGVScHGVSpEffectExon RankProteinUniProt
DOK7
ENST00000340083.6
TSL:1 MANE Select
c.1346C>Tp.Thr449Met
missense
Exon 7 of 7ENSP00000344432.5Q18PE1-1
DOK7
ENST00000643608.1
c.914C>Tp.Thr305Met
missense
Exon 5 of 8ENSP00000495701.1A0A2R8Y701
DOK7
ENST00000515886.5
TSL:2
c.416C>Tp.Thr139Met
missense
Exon 4 of 4ENSP00000492194.1A0A1W2PRA3

Frequencies

GnomAD3 genomes
AF:
0.000125
AC:
19
AN:
152166
Hom.:
0
Cov.:
34
show subpopulations
Gnomad AFR
AF:
0.000290
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.0000655
Gnomad ASJ
AF:
0.00
Gnomad EAS
AF:
0.00
Gnomad SAS
AF:
0.000207
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.0000441
Gnomad OTH
AF:
0.000955
GnomAD2 exomes
AF:
0.000102
AC:
22
AN:
215368
AF XY:
0.000109
show subpopulations
Gnomad AFR exome
AF:
0.000331
Gnomad AMR exome
AF:
0.000155
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.0000606
Gnomad FIN exome
AF:
0.0000519
Gnomad NFE exome
AF:
0.000119
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.0000787
AC:
114
AN:
1448822
Hom.:
0
Cov.:
95
AF XY:
0.0000751
AC XY:
54
AN XY:
719430
show subpopulations
African (AFR)
AF:
0.000722
AC:
24
AN:
33238
American (AMR)
AF:
0.000161
AC:
7
AN:
43356
Ashkenazi Jewish (ASJ)
AF:
0.000389
AC:
10
AN:
25732
East Asian (EAS)
AF:
0.00
AC:
0
AN:
39184
South Asian (SAS)
AF:
0.0000236
AC:
2
AN:
84916
European-Finnish (FIN)
AF:
0.0000591
AC:
3
AN:
50780
Middle Eastern (MID)
AF:
0.000522
AC:
3
AN:
5746
European-Non Finnish (NFE)
AF:
0.0000506
AC:
56
AN:
1106108
Other (OTH)
AF:
0.000151
AC:
9
AN:
59762
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.482
Heterozygous variant carriers
0
10
20
29
39
49
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:
0.000125
AC:
19
AN:
152284
Hom.:
0
Cov.:
34
AF XY:
0.000107
AC XY:
8
AN XY:
74454
show subpopulations
African (AFR)
AF:
0.000289
AC:
12
AN:
41556
American (AMR)
AF:
0.0000654
AC:
1
AN:
15292
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
3470
East Asian (EAS)
AF:
0.00
AC:
0
AN:
5176
South Asian (SAS)
AF:
0.000207
AC:
1
AN:
4826
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
10630
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
294
European-Non Finnish (NFE)
AF:
0.0000441
AC:
3
AN:
68012
Other (OTH)
AF:
0.000945
AC:
2
AN:
2116
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.472
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.:
0
Bravo
AF:
0.000166
ESP6500AA
AF:
0.00
AC:
0
ESP6500EA
AF:
0.000359
AC:
3
ExAC
AF:
0.000119
AC:
14

ClinVar

ClinVar submissions
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
not provided (1)

Computational scores

Source: dbNSFP v4.9

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.083
BayesDel_addAF
Benign
-0.35
T
BayesDel_noAF
Benign
-0.41
CADD
Benign
13
DANN
Uncertain
1.0
DEOGEN2
Benign
0.088
T
Eigen
Benign
-0.60
Eigen_PC
Benign
-0.70
FATHMM_MKL
Benign
0.084
N
LIST_S2
Benign
0.75
T
M_CAP
Uncertain
0.11
D
MetaRNN
Benign
0.053
T
MetaSVM
Benign
-0.83
T
MutationAssessor
Benign
1.5
L
PhyloP100
0.14
PrimateAI
Uncertain
0.62
T
PROVEAN
Benign
-1.8
N
REVEL
Benign
0.055
Sift
Uncertain
0.012
D
Sift4G
Benign
0.095
T
Polyphen
0.047
B
Vest4
0.15
MVP
0.71
MPC
0.0074
ClinPred
0.015
T
GERP RS
2.1
Varity_R
0.059
gMVP
0.13
Mutation Taster
=98/2
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: rs373864257; hg19: chr4-3495059; COSMIC: COSV60772671; COSMIC: COSV60772671; API
For research and educational, non-commercial use only. Not for clinical or diagnostic use. GeneBe does not provide medical advice. Data use for AI modeling is prohibited: if used, the cost is $0.001 per byte of downloaded uncompressed data.