rs118203994

Variant summary

Our verdict is Likely pathogenic. Variant got 8 ACMG points: 8P and 0B. PM1PM2PM5PP3_Moderate

The NM_173660.5(DOK7):​c.539G>A​(p.Gly180Asp) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.00000069 in 1,449,886 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a pathogenic outcome for this variant. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar. Another variant affecting the same amino acid position, but resulting in a different missense (i.e. G180A) has been classified as Likely pathogenic.

Frequency

Genomes: not found (cov: 34)
Exomes 𝑓: 6.9e-7 ( 0 hom. )

Consequence

DOK7
NM_173660.5 missense

Scores

10
3
4

Clinical Significance

Not reported in ClinVar

Conservation

PhyloP100: 7.34
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]

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Likely_pathogenic. Variant got 8 ACMG points.

PM1
In a domain IRS-type PTB (size 105) in uniprot entity DOK7_HUMAN there are 41 pathogenic changes around while only 1 benign (98%) in NM_173660.5
PM2
Very rare variant in population databases, with high coverage;
PM5
Other missense variant is known to change same aminoacid residue: Variant chr4-3485545-G-C is described in ClinVar as [Likely_pathogenic]. Clinvar id is 1278.Status of the report is criteria_provided_single_submitter, 1 stars.
PP3
MetaRNN computational evidence supports a deleterious effect, 0.937

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
DOK7NM_173660.5 linkuse as main transcriptc.539G>A p.Gly180Asp missense_variant 5/7 ENST00000340083.6

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
DOK7ENST00000340083.6 linkuse as main transcriptc.539G>A p.Gly180Asp missense_variant 5/71 NM_173660.5 P1Q18PE1-1

Frequencies

GnomAD3 genomes
Cov.:
34
GnomAD3 exomes
AF:
0.00000411
AC:
1
AN:
243482
Hom.:
0
AF XY:
0.00
AC XY:
0
AN XY:
131944
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.00
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad SAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.00000904
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
6.90e-7
AC:
1
AN:
1449886
Hom.:
0
Cov.:
33
AF XY:
0.00
AC XY:
0
AN XY:
720698
show subpopulations
Gnomad4 AFR exome
AF:
0.00
Gnomad4 AMR exome
AF:
0.00
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.00
Gnomad4 SAS exome
AF:
0.00
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
9.05e-7
Gnomad4 OTH exome
AF:
0.00
GnomAD4 genome
Cov.:
34

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Pathogenic
0.97
BayesDel_addAF
Pathogenic
0.51
D
BayesDel_noAF
Pathogenic
0.50
CADD
Pathogenic
27
DANN
Uncertain
0.99
DEOGEN2
Pathogenic
0.93
D;.
Eigen
Benign
0.17
Eigen_PC
Benign
0.11
FATHMM_MKL
Pathogenic
0.97
D
LIST_S2
Uncertain
0.96
D;D
MetaRNN
Pathogenic
0.94
D;D
MetaSVM
Benign
-0.36
T
MutationTaster
Benign
1.0
A;D;D
PrimateAI
Pathogenic
0.87
D
PROVEAN
Pathogenic
-5.9
D;.
REVEL
Pathogenic
0.87
Sift
Uncertain
0.0020
D;.
Sift4G
Pathogenic
0.0
D;.
Polyphen
1.0
D;.
Vest4
0.96
MutPred
0.75
Loss of loop (P = 0.0203);.;
MVP
0.94
MPC
0.017
ClinPred
0.99
D
GERP RS
3.8
Varity_R
0.95
gMVP
0.94

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: rs118203994; hg19: chr4-3487272; API