Genetic Variant DOCK2:p.Ser1825Ser (chr5-170082840-G-A) – ACMG Classification: Benign (-15 pts)

Variant summary

Our verdict is Benign. The variant received -15 ACMG points: 0P and 15B. BP4_StrongBP6_ModerateBP7BS1BS2

The NM_004946.3(DOCK2):c.5475G>A(p.Ser1825Ser) variant causes a synonymous change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00152 in 1,614,170 control chromosomes in the GnomAD database, including 19 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Benign (★).

Frequency

Genomes: 𝑓 0.0062 ( 7 hom., cov: 32)

Exomes 𝑓: 0.0010 ( 12 hom. )

Consequence

DOCK2
NM_004946.3 synonymous

Scores

Clinical Significance

Benign criteria provided, single submitter B:1

Conservation

PhyloP100: -1.17

Publications

0 publications found

Variant links:

Genes affected

DOCK2 (HGNC:2988): (dedicator of cytokinesis 2) The protein encoded by this gene belongs to the CDM protein family. It is specifically expressed in hematopoietic cells and is predominantly expressed in peripheral blood leukocytes. The protein is involved in remodeling of the actin cytoskeleton required for lymphocyte migration in response to chemokine signaling. It activates members of the Rho family of GTPases, for example RAC1 and RAC2, by acting as a guanine nucleotide exchange factor (GEF) to exchange bound GDP for free GTP. Mutations in this gene result in immunodeficiency 40 (IMD40), a combined form of immunodeficiency that affects T cell number and function, also with variable defects in B cell and NK cell function. [provided by RefSeq, May 2018]

DOCK2 Gene-Disease associations (from GenCC):

DOCK2 deficiency
Inheritance: AR Classification: DEFINITIVE, STRONG, SUPPORTIVE Submitted by: Orphanet, Labcorp Genetics (formerly Invitae), ClinGen, Ambry Genetics

DOCK2 links:

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Benign. The variant received -15 ACMG points.

BP4

Computational evidence support a benign effect (BayesDel_noAF=-0.81).

BP6

Variant 5-170082840-G-A is Benign according to our data. Variant chr5-170082840-G-A is described in ClinVar as Benign. ClinVar VariationId is 542618.Status of the report is criteria_provided_single_submitter, 1 stars.

BP7

Synonymous conserved (PhyloP=-1.17 with no splicing effect.

BS1

Variant frequency is greater than expected in population afr. GnomAd4 allele frequency = 0.00624 (951/152300) while in subpopulation AFR AF = 0.0198 (825/41576). AF 95% confidence interval is 0.0187. There are 7 homozygotes in GnomAd4. There are 462 alleles in the male GnomAd4 subpopulation. Median coverage is 32. This position passed quality control check.

BS2

High Homozygotes in GnomAd4 at 7 AR gene

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
DOCK2	NM_004946.3 link	c.5475G>A	p.Ser1825Ser	synonymous_variant	Exon 52 of 52	ENST00000520908.7	NP_004937.1	Q92608-1Q5XG91
DOCK2	NR_156756.1 link	n.5578G>A		non_coding_transcript_exon_variant	Exon 53 of 53

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
DOCK2	ENST00000520908.7 link	c.5475G>A	p.Ser1825Ser	synonymous_variant	Exon 52 of 52	2	NM_004946.3	ENSP00000429283.3		Q92608-1

Frequencies

GnomAD3 genomes

AF:

0.00622

AC:

946

AN:

152182

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.0198

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.00262

Gnomad ASJ

AF:

0.00403

Gnomad EAS

AF:

0.00

Gnomad SAS

AF:

0.000829

Gnomad FIN

AF:

0.000188

Gnomad MID

AF:

0.0158

Gnomad NFE

AF:

0.000647

Gnomad OTH

AF:

0.00813

GnomAD2 exomes

AF:

0.00227

AC:

570

AN:

251246

AF XY:

0.00203

show subpopulations

Gnomad AFR exome

AF:

0.0205

Gnomad AMR exome

AF:

0.00173

Gnomad ASJ exome

AF:

0.00288

Gnomad EAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.0000462

Gnomad NFE exome

AF:

0.000863

Gnomad OTH exome

AF:

0.00196

GnomAD4 exome

AF:

0.00103

AC:

1509

AN:

1461870

Hom.:

Cov.:

AF XY:

0.000998

AC XY:

726

AN XY:

727236

show subpopulations

African (AFR)

AF:

0.0186

AC:

624

AN:

33480

American (AMR)

AF:

0.00186

AC:

AN:

44724

Ashkenazi Jewish (ASJ)

AF:

0.00253

AC:

AN:

26136

East Asian (EAS)

AF:

0.00

AC:

AN:

39700

South Asian (SAS)

AF:

0.00116

AC:

100

AN:

86258

European-Finnish (FIN)

AF:

0.0000375

AC:

AN:

53404

Middle Eastern (MID)

AF:

0.00485

AC:

AN:

5768

European-Non Finnish (NFE)

AF:

0.000429

AC:

477

AN:

1112006

Other (OTH)

AF:

0.00214

AC:

129

AN:

60394

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.454

Heterozygous variant carriers

165

247

330

412

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Exome Het

Exome Hom

Variant carriers

112

140

<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:

0.00624

AC:

951

AN:

152300

Hom.:

Cov.:

AF XY:

0.00620

AC XY:

462

AN XY:

74474

show subpopulations

African (AFR)

AF:

0.0198

AC:

825

AN:

41576

American (AMR)

AF:

0.00261

AC:

AN:

15298

Ashkenazi Jewish (ASJ)

AF:

0.00403

AC:

AN:

3470

East Asian (EAS)

AF:

0.00

AC:

AN:

5178

South Asian (SAS)

AF:

0.000830

AC:

AN:

4822

European-Finnish (FIN)

AF:

0.000188

AC:

AN:

10620

Middle Eastern (MID)

AF:

0.0170

AC:

AN:

294

European-Non Finnish (NFE)

AF:

0.000647

AC:

AN:

68018

Other (OTH)

AF:

0.00805

AC:

AN:

2112

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.498

Heterozygous variant carriers

144

192

240

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Genome Het

Genome Hom

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

Alfa

AF:

0.00296

Hom.:

Bravo

AF:

0.00709

Asia WGS

AF:

0.000866

AC:

AN:

3478

EpiCase

AF:

0.000709

EpiControl

AF:

0.00107

ClinVar

Significance: Benign

Submissions summary: Benign:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

DOCK2 deficiency

Benign:1

Jan 28, 2025

Labcorp Genetics (formerly Invitae), Labcorp

Significance:Benign

Review Status:criteria provided, single submitter

Collection Method:clinical testing

- -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

BayesDel_noAF

Benign

-0.81

CADD

Benign

4.4

(source)

DANN

Benign

0.42

PhyloP100

-1.2

Mutation Taster

=100/0

polymorphism

(source)

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

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Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

Publications

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

Age Distribution

Age Distribution

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

Other links and lift over