chr4-3473663-G-A

Variant summary

Our verdict is Benign. Variant got -20 ACMG points: 0P and 20B. BP4_StrongBP6_Very_StrongBA1

The NM_173660.5(DOK7):​c.331+27G>A variant causes a intron change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.117 in 1,519,254 control chromosomes in the GnomAD database, including 11,609 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Benign (★★).

Frequency

Genomes: 𝑓 0.098 ( 957 hom., cov: 33)
Exomes 𝑓: 0.12 ( 10652 hom. )

Consequence

DOK7
NM_173660.5 intron

Scores

2

Clinical Significance

Benign criteria provided, multiple submitters, no conflicts B:3

Conservation

PhyloP100: -3.95
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]

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ACMG classification

Classification made for transcript

Verdict is Benign. Variant got -20 ACMG points.

BP4
Computational evidence support a benign effect (BayesDel_noAF=-0.89).
BP6
Variant 4-3473663-G-A is Benign according to our data. Variant chr4-3473663-G-A is described in ClinVar as [Benign]. Clinvar id is 262873.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars. Variant chr4-3473663-G-A is described in Lovd as [Benign].
BA1
GnomAd4 highest subpopulation (EAS) allele frequency at 95% confidence interval = 0.216 is higher than 0.05.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
DOK7NM_173660.5 linkuse as main transcriptc.331+27G>A intron_variant ENST00000340083.6 NP_775931.3

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
DOK7ENST00000340083.6 linkuse as main transcriptc.331+27G>A intron_variant 1 NM_173660.5 ENSP00000344432 P1Q18PE1-1

Frequencies

GnomAD3 genomes
AF:
0.0980
AC:
14913
AN:
152176
Hom.:
956
Cov.:
33
show subpopulations
Gnomad AFR
AF:
0.0252
Gnomad AMI
AF:
0.0318
Gnomad AMR
AF:
0.135
Gnomad ASJ
AF:
0.0772
Gnomad EAS
AF:
0.227
Gnomad SAS
AF:
0.104
Gnomad FIN
AF:
0.123
Gnomad MID
AF:
0.122
Gnomad NFE
AF:
0.122
Gnomad OTH
AF:
0.0990
GnomAD3 exomes
AF:
0.135
AC:
18770
AN:
139488
Hom.:
1503
AF XY:
0.132
AC XY:
9805
AN XY:
74194
show subpopulations
Gnomad AFR exome
AF:
0.0220
Gnomad AMR exome
AF:
0.193
Gnomad ASJ exome
AF:
0.0762
Gnomad EAS exome
AF:
0.236
Gnomad SAS exome
AF:
0.108
Gnomad FIN exome
AF:
0.128
Gnomad NFE exome
AF:
0.123
Gnomad OTH exome
AF:
0.117
GnomAD4 exome
AF:
0.119
AC:
162894
AN:
1366960
Hom.:
10652
Cov.:
33
AF XY:
0.119
AC XY:
79406
AN XY:
668394
show subpopulations
Gnomad4 AFR exome
AF:
0.0198
Gnomad4 AMR exome
AF:
0.181
Gnomad4 ASJ exome
AF:
0.0722
Gnomad4 EAS exome
AF:
0.272
Gnomad4 SAS exome
AF:
0.104
Gnomad4 FIN exome
AF:
0.121
Gnomad4 NFE exome
AF:
0.117
Gnomad4 OTH exome
AF:
0.111
GnomAD4 genome
AF:
0.0979
AC:
14907
AN:
152294
Hom.:
957
Cov.:
33
AF XY:
0.101
AC XY:
7513
AN XY:
74472
show subpopulations
Gnomad4 AFR
AF:
0.0251
Gnomad4 AMR
AF:
0.134
Gnomad4 ASJ
AF:
0.0772
Gnomad4 EAS
AF:
0.227
Gnomad4 SAS
AF:
0.104
Gnomad4 FIN
AF:
0.123
Gnomad4 NFE
AF:
0.122
Gnomad4 OTH
AF:
0.0975
Alfa
AF:
0.111
Hom.:
193
Bravo
AF:
0.0972
Asia WGS
AF:
0.131
AC:
453
AN:
3478

ClinVar

Significance: Benign
Submissions summary: Benign:3
Revision: criteria provided, multiple submitters, no conflicts
LINK: link

Submissions by phenotype

not provided Benign:2
Benign, criteria provided, single submitternot providedBreakthrough Genomics, Breakthrough Genomics-- -
Benign, criteria provided, single submitterclinical testingGeneDxJun 28, 2018- -
not specified Benign:1
Benign, criteria provided, single submitterclinical testingPreventionGenetics, part of Exact Sciences-- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
BayesDel_noAF
Benign
-0.89
CADD
Benign
0.62
DANN
Benign
0.54

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.

Other links and lift over

dbSNP: rs77051823; hg19: chr4-3475390; COSMIC: COSV60771511; API