NM_173660.5:c.971C>A

Variant names:

• chr4-3492957-C-A
• NM_173660.5:c.971C>A

Variant summary

Our verdict is Uncertain significance. Variant got 2 ACMG points: 2P and 0B. PM2

The NM_173660.5(DOK7):​c.971C>A​(p.Pro324Gln) variant causes a missense change. The variant allele was found at a frequency of 0.00000286 in 1,400,734 control chromosomes in the GnomAD database, with no homozygous occurrence. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar.

• Frequency:
  • Genomes: not found (cov: 34)
  • Exomes 𝑓: 0.0000029 (0 hom.)
• Consequence: DOK7 NM_173660.5 missense
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: 5.29

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]

ACMG classification

Verdict is Uncertain_significance. Variant got 2 ACMG points.

• PM2: Very rare variant in population databases, with high coverage

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
DOK7	NM_173660.5	c.971C>A	p.Pro324Gln	missense_variant	Exon 7 of 7	ENST00000340083.6	NP_775931.3

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
DOK7	ENST00000340083.6	c.971C>A	p.Pro324Gln	missense_variant	Exon 7 of 7	1	NM_173660.5	ENSP00000344432.5

Frequencies

GnomAD3 genomes Cov.: 34

GnomAD4 exome AF: 0.00000286 AC: 4 AN: 1400734 Hom.: 0 Cov.: 111 AF XY: 0.00 AC XY: 0 AN XY: 692312

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: 0.00000369

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	Benign	0.11
BayesDel_addAF	Benign	-0.054	T
BayesDel_noAF	Benign	-0.32
CADD	Benign	22
DANN	Uncertain	0.98
DEOGEN2	Benign	0.39	T;.;.
Eigen	Uncertain	0.36
Eigen_PC	Benign	0.21
FATHMM_MKL	Uncertain	0.91	D
LIST_S2	Benign	0.84	T;T;D
M_CAP	Uncertain	0.28	D
MetaRNN	Uncertain	0.55	D;D;D
MetaSVM	Uncertain	-0.034	T
MutationAssessor	Uncertain	2.3	M;.;.
PrimateAI	Uncertain	0.68	T
PROVEAN	Pathogenic	-4.4	D;.;.
REVEL	Benign	0.28
Sift	Uncertain	0.0050	D;.;.
Sift4G	Uncertain	0.029	D;.;.
Polyphen		0.99	D;.;.
Vest4		0.21
MutPred		0.28		Loss of glycosylation at P319 (P = 0.0018);.;.;
MVP		0.75
MPC		0.021
ClinPred		0.95	D
GERP RS		4.1
Varity_R		0.17
gMVP		0.18

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

No publications associated with this variant yet.

Other links and lift over

hg19: chr4-3494684;