Genetic Variant DOCK7:p.Arg978Ser (chr1-62543673-G-T) – ACMG Classification: Uncertain_significance (2 pts)

Variant summary

Our verdict is Uncertain significance. The variant received 2 ACMG points: 2P and 0B. PM2

The NM_001367561.1(DOCK7):c.2932C>A(p.Arg978Ser) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.00000277 in 1,446,424 control chromosomes in the GnomAD database, with no homozygous occurrence. 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. R978C) has been classified as Uncertain significance.

Frequency

Genomes: not found (cov: 32)

Exomes 𝑓: 0.0000028 ( 0 hom. )

Consequence

DOCK7
NM_001367561.1 missense

Scores

Clinical Significance

Not reported in ClinVar

Conservation

PhyloP100: 10.0

Publications

0 publications found

Variant links:

Genes affected

DOCK7 (HGNC:19190): (dedicator of cytokinesis 7) The protein encoded by this gene is a guanine nucleotide exchange factor (GEF) that plays a role in axon formation and neuronal polarization. The encoded protein displays GEF activity toward RAC1 and RAC3 Rho small GTPases but not toward CDC42. Several transcript variants encoding different isoforms have been found for this gene. [provided by RefSeq, Dec 2012]

DOCK7 Gene-Disease associations (from GenCC):

genetic developmental and epileptic encephalopathy
Inheritance: AR Classification: DEFINITIVE Submitted by: ClinGen
developmental and epileptic encephalopathy, 23
Inheritance: AR Classification: STRONG, MODERATE, SUPPORTIVE Submitted by: Labcorp Genetics (formerly Invitae), Ambry Genetics, Orphanet, G2P

DOCK7 links:

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ACMG classification

Classification was made for transcript

Our verdict: Uncertain_significance. The variant received 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
DOCK7	NM_001367561.1 link	c.2932C>A	p.Arg978Ser	missense_variant	Exon 24 of 50	ENST00000635253.2	NP_001354490.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
DOCK7	ENST00000635253.2 link	c.2932C>A	p.Arg978Ser	missense_variant	Exon 24 of 50	5	NM_001367561.1	ENSP00000489124.1		Q96N67-1

Frequencies

GnomAD3 genomes

Cov.:

GnomAD4 exome

AF:

0.00000277

AC:

AN:

1446424

Hom.:

Cov.:

AF XY:

0.00000278

AC XY:

AN XY:

718966

show subpopulations

African (AFR)

AF:

0.00

AC:

AN:

33294

American (AMR)

AF:

0.00

AC:

AN:

44566

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

25704

East Asian (EAS)

AF:

0.00

AC:

AN:

39474

South Asian (SAS)

AF:

0.00

AC:

AN:

84226

European-Finnish (FIN)

AF:

0.00

AC:

AN:

52972

Middle Eastern (MID)

AF:

0.000351

AC:

AN:

5706

European-Non Finnish (NFE)

AF:

0.00

AC:

AN:

1100866

Other (OTH)

AF:

0.0000335

AC:

AN:

59616

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.550

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Exome Het

Variant carriers

<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

Cov.:

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Pathogenic

0.95

BayesDel_addAF

Pathogenic

0.21

BayesDel_noAF

Uncertain

0.060

CADD

Uncertain

(source)

DANN

Uncertain

1.0

DEOGEN2

Benign

0.0097

.;.;.;T;.;.;T

Eigen

Uncertain

0.44

Eigen_PC

Uncertain

0.56

FATHMM_MKL

Pathogenic

0.99

LIST_S2

Uncertain

0.97

D;D;D;D;D;D;D

M_CAP

Benign

0.013

MetaRNN

Uncertain

0.56

D;D;D;D;D;D;D

MetaSVM

Benign

-0.90

MutationAssessor

Benign

1.1

L;L;.;.;.;.;L

PhyloP100

PrimateAI

Pathogenic

0.88

PROVEAN

Benign

-1.7

N;.;N;.;.;.;.

REVEL

Uncertain

0.31

Sift

Uncertain

0.010

D;.;T;.;.;.;.

Sift4G

Uncertain

0.046

D;D;T;.;T;T;D

Polyphen

0.0030

B;B;B;.;B;B;.

Vest4

0.92

MutPred

0.48

Loss of solvent accessibility (P = 0.0238);Loss of solvent accessibility (P = 0.0238);.;.;.;.;Loss of solvent accessibility (P = 0.0238);

MVP

0.79

MPC

0.95

ClinPred

0.86

GERP RS

5.3

Varity_R

0.45

gMVP

0.48

Mutation Taster

=29/71

disease causing

(source)

Splicing

Name

Calibrated prediction

Score

Prediction

SpliceAI score (max)

0.040

Details are displayed if max score is > 0.2

Find out detailed SpliceAI scores and Pangolin per-transcript scores at spliceailookup.broadinstitute.org

Publications

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Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

Publications

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

Age Distribution

ClinVar

Computational scores

Splicing

Publications

Other links and lift over