rs557824061

Positions:

chr5-170019064-G-A

Variant summary

Our verdict is Uncertain significance. Variant got 3 ACMG points: 3P and 0B. PM2PP2

The NM_004946.3(DOCK2):c.3337G>A(p.Asp1113Asn) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.0000613 in 1,613,876 control chromosomes in the GnomAD database, with no homozygous occurrence. Variant has been reported in ClinVar as Uncertain significance (★★).

Frequency

Genomes: 𝑓 0.000039 ( 0 hom., cov: 32)

Exomes 𝑓: 0.000064 ( 0 hom. )

Consequence

DOCK2
NM_004946.3 missense

Scores

Clinical Significance

Uncertain significance criteria provided, multiple submitters, no conflicts U:2

Conservation

PhyloP100: 9.90

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 links:

DOCK2 (HGNC:):

DOCK2 links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 3 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

PP2

Missense variant in gene, where missense usually causes diseases (based on misZ statistic), DOCK2. . Trascript score misZ 4.9036 (greater than threshold 3.09). GenCC has associacion of gene with DOCK2 deficiency.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
DOCK2	NM_004946.3 linkuse as main transcript	c.3337G>A	p.Asp1113Asn	missense_variant	33/52	ENST00000520908.7	NP_004937.1	Q92608-1Q5XG91
DOCK2	NR_156756.1 linkuse as main transcript	n.3440G>A		non_coding_transcript_exon_variant	34/53

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris	UniProt
DOCK2	ENST00000520908.7 linkuse as main transcript	c.3337G>A	p.Asp1113Asn	missense_variant	33/52	2	NM_004946.3	ENSP00000429283.3		Q92608-1

Frequencies

GnomAD3 genomes

AF:

0.0000395

AC:

AN:

152070

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.00

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.00

Gnomad ASJ

AF:

0.00

Gnomad EAS

AF:

0.00

Gnomad SAS

AF:

0.00

Gnomad FIN

AF:

0.00

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.0000882

Gnomad OTH

AF:

0.00

GnomAD3 exomes

AF:

0.0000358

AC:

AN:

251100

Hom.:

AF XY:

0.0000368

AC XY:

AN XY:

135686

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:

0.0000794

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.0000636

AC:

AN:

1461806

Hom.:

Cov.:

AF XY:

0.0000633

AC XY:

AN XY:

727198

show subpopulations

Gnomad4 AFR exome

AF:

0.0000299

Gnomad4 AMR exome

AF:

0.00

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.00

Gnomad4 SAS exome

AF:

0.0000116

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.0000791

Gnomad4 OTH exome

AF:

0.0000497

GnomAD4 genome

AF:

0.0000395

AC:

AN:

152070

Hom.:

Cov.:

AF XY:

0.0000269

AC XY:

AN XY:

74272

show subpopulations

Gnomad4 AFR

AF:

0.00

Gnomad4 AMR

AF:

0.00

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.00

Gnomad4 SAS

AF:

0.00

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.0000882

Gnomad4 OTH

AF:

0.00

Alfa

AF:

0.000116

Hom.:

Bravo

AF:

0.0000227

ExAC

AF:

0.0000247

AC:

EpiCase

AF:

0.00

EpiControl

AF:

0.000178

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:2

Revision: criteria provided, multiple submitters, no conflicts

LINK: link

Submissions by phenotype

Inborn genetic diseases

Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

Ambry Genetics

Jan 26, 2023

The c.3337G>A (p.D1113N) alteration is located in exon 33 (coding exon 33) of the DOCK2 gene. This alteration results from a G to A substitution at nucleotide position 3337, causing the aspartic acid (D) at amino acid position 1113 to be replaced by an asparagine (N). Based on insufficient or conflicting evidence, the clinical significance of this alteration remains unclear. -

DOCK2 deficiency

Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

Labcorp Genetics (formerly Invitae), Labcorp

Aug 19, 2022

This sequence change replaces aspartic acid, which is acidic and polar, with asparagine, which is neutral and polar, at codon 1113 of the DOCK2 protein (p.Asp1113Asn). This variant is present in population databases (rs557824061, gnomAD 0.008%). This variant has not been reported in the literature in individuals affected with DOCK2-related conditions. ClinVar contains an entry for this variant (Variation ID: 574921). Algorithms developed to predict the effect of missense changes on protein structure and function are either unavailable or do not agree on the potential impact of this missense change (SIFT: "Tolerated"; PolyPhen-2: "Possibly Damaging"; Align-GVGD: "Class C0"). In summary, the available evidence is currently insufficient to determine the role of this variant in disease. Therefore, it has been classified as a Variant of Uncertain Significance. -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Pathogenic

0.93

BayesDel_addAF

Benign

-0.13

BayesDel_noAF

Benign

-0.24

CADD

Pathogenic

DANN

Pathogenic

1.0

DEOGEN2

Uncertain

0.56

D;D

Eigen

Uncertain

0.38

Eigen_PC

Uncertain

0.48

FATHMM_MKL

Pathogenic

0.99

LIST_S2

Pathogenic

0.99

.;D

M_CAP

Benign

0.018

MetaRNN

Uncertain

0.45

T;T

MetaSVM

Benign

-0.69

MutationAssessor

Pathogenic

3.0

M;M

PrimateAI

Uncertain

0.78

PROVEAN

Uncertain

-4.2

D;.

REVEL

Uncertain

0.36

Sift

Benign

0.032

D;.

Sift4G

Benign

0.066

T;.

Polyphen

0.086

B;B

Vest4

0.90

MutPred

0.51

Loss of catalytic residue at D1113 (P = 0.1855);Loss of catalytic residue at D1113 (P = 0.1855);

MVP

0.69

MPC

1.1

ClinPred

0.86

GERP RS

4.8

Varity_R

0.69

gMVP

0.86

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.

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

LitVar

Other links and lift over