chr19-11213198-C-T

Variant names:

Variant summary

Our verdict is Likely benign. Variant got -4 ACMG points: 0P and 4B. BS2

The NM_020812.4(DOCK6):c.4469G>A(p.Arg1490Gln) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.000376 in 1,612,778 control chromosomes in the GnomAD database, including 2 homozygotes. Variant has been reported in ClinVar as Uncertain significance (★★).

Frequency

Genomes: 𝑓 0.00016 ( 0 hom., cov: 31)

Exomes 𝑓: 0.00040 ( 2 hom. )

Consequence

DOCK6
NM_020812.4 missense

Scores

Clinical Significance

Uncertain significance criteria provided, multiple submitters, no conflicts P:1U:3

Conservation

PhyloP100: 7.81

Variant links:

Genes affected

DOCK6 (HGNC:19189): (dedicator of cytokinesis 6) This gene encodes a member of the dedicator of cytokinesis (DOCK) family of atypical guanine nucleotide exchange factors. Guanine nucleotide exchange factors interact with small GTPases and are components of intracellular signaling networks. The encoded protein is a group C DOCK protein and plays a role in actin cytoskeletal reorganization by activating the Rho GTPases Cdc42 and Rac1. Mutations in this gene are associated with Adams-Oliver syndrome 2. [provided by RefSeq, Dec 2011]

DOCK6 links:

ENSG00000267082 (HGNC:56684): (DOCK6 antisense RNA 1)

ENSG00000267082 links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Likely_benign. Variant got -4 ACMG points.

BS2

High Homozygotes in GnomAdExome4 at 2 AR gene

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
DOCK6	NM_020812.4 link	c.4469G>A	p.Arg1490Gln	missense_variant	Exon 35 of 48	ENST00000294618.12	NP_065863.2	Q96HP0B7Z9U8

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	UniProt
DOCK6	ENST00000294618.12 link	c.4469G>A	p.Arg1490Gln	missense_variant	Exon 35 of 48	1	NM_020812.4	ENSP00000294618.6	Q96HP0
DOCK6	ENST00000587656.6 link	c.4574G>A	p.Arg1525Gln	missense_variant	Exon 36 of 49	5		ENSP00000468638.2	K7ESB7
ENSG00000267082	ENST00000588634.1 link	n.538-2939C>T		intron_variant	Intron 2 of 2	4

Frequencies

GnomAD3 genomes

AF:

0.000158

AC:

AN:

152194

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.00

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.000262

Gnomad ASJ

AF:

0.00

Gnomad EAS

AF:

0.00

Gnomad SAS

AF:

0.00

Gnomad FIN

AF:

0.0000942

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.000279

Gnomad OTH

AF:

0.00

GnomAD3 exomes

AF:

0.000173

AC:

AN:

247926

Hom.:

AF XY:

0.000156

AC XY:

AN XY:

134760

show subpopulations

Gnomad AFR exome

AF:

0.000129

Gnomad AMR exome

AF:

0.000116

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00

Gnomad SAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.0000931

Gnomad NFE exome

AF:

0.000313

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.000399

AC:

582

AN:

1460466

Hom.:

Cov.:

AF XY:

0.000391

AC XY:

284

AN XY:

726412

show subpopulations

Gnomad4 AFR exome

AF:

0.0000299

Gnomad4 AMR exome

AF:

0.000112

Gnomad4 ASJ exome

AF:

0.0000383

Gnomad4 EAS exome

AF:

0.0000504

Gnomad4 SAS exome

AF:

0.0000232

Gnomad4 FIN exome

AF:

0.0000570

Gnomad4 NFE exome

AF:

0.000497

Gnomad4 OTH exome

AF:

0.000265

GnomAD4 genome

AF:

0.000158

AC:

AN:

152312

Hom.:

Cov.:

AF XY:

0.000134

AC XY:

AN XY:

74474

show subpopulations

Gnomad4 AFR

AF:

0.00

Gnomad4 AMR

AF:

0.000261

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.00

Gnomad4 SAS

AF:

0.00

Gnomad4 FIN

AF:

0.0000942

Gnomad4 NFE

AF:

0.000279

Gnomad4 OTH

AF:

0.00

Alfa

AF:

0.000299

Hom.:

Bravo

AF:

0.000162

TwinsUK

AF:

0.000270

AC:

ALSPAC

AF:

0.00130

AC:

ESP6500AA

AF:

0.000228

AC:

ESP6500EA

AF:

0.000233

AC:

ExAC

AF:

0.000148

AC:

EpiCase

AF:

0.000273

EpiControl

AF:

0.000415

ClinVar

Significance: Uncertain significance

Submissions summary: Pathogenic:1Uncertain:3

Revision: criteria provided, multiple submitters, no conflicts

LINK: link

Submissions by phenotype

not provided

Uncertain:2

Aug 19, 2022

Labcorp Genetics (formerly Invitae), Labcorp

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: clinical testing

This sequence change replaces arginine, which is basic and polar, with glutamine, which is neutral and polar, at codon 1490 of the DOCK6 protein (p.Arg1490Gln). This variant is present in population databases (rs200472954, gnomAD 0.03%). This variant has not been reported in the literature in individuals affected with DOCK6-related conditions. ClinVar contains an entry for this variant (Variation ID: 202182). 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: "Deleterious"; PolyPhen-2: "Probably 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. -

May 14, 2024

GeneDx

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: clinical testing

In silico analysis supports that this missense variant has a deleterious effect on protein structure/function; Has not been previously published as pathogenic or benign to our knowledge; This variant is associated with the following publications: (PMID: 31589614) -

Adams-Oliver syndrome 2

Pathogenic:1

Sep 24, 2013

Mendelics

Significance: Likely pathogenic

Review Status: no assertion criteria provided

Collection Method: clinical testing

- -

DOCK6-related disorder

Uncertain:1

Feb 21, 2024

PreventionGenetics, part of Exact Sciences

Significance: Uncertain significance

Review Status: no assertion criteria provided

Collection Method: clinical testing

The DOCK6 c.4469G>A variant is predicted to result in the amino acid substitution p.Arg1490Gln. To our knowledge, this variant has not been documented in any individuals affected with DOCK6-related Adams-Oliver syndrome type 2. It is reported in a single heterozygous individual from a carrier screening paper (Capalbo et al 2019. PubMed ID: 31589614). This variant is reported in 0.029% of alleles in individuals of European (Non-Finnish) descent in gnomAD. At this time, the clinical significance of this variant is uncertain due to the absence of conclusive functional and genetic evidence. -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.30

BayesDel_addAF

Benign

-0.12

BayesDel_noAF

Uncertain

0.020

CADD

Pathogenic

DANN

Pathogenic

1.0

DEOGEN2

Benign

0.29

Eigen

Pathogenic

0.86

Eigen_PC

Pathogenic

0.79

FATHMM_MKL

Pathogenic

0.98

LIST_S2

Pathogenic

0.99

M_CAP

Benign

0.050

MetaRNN

Uncertain

0.73

MetaSVM

Benign

-1.1

MutationAssessor

Pathogenic

3.4

PrimateAI

Uncertain

0.79

PROVEAN

Uncertain

-3.9

REVEL

Uncertain

0.45

Sift

Uncertain

0.0020

Sift4G

Pathogenic

0.0

Polyphen

0.94

Vest4

0.93

MVP

0.52

MPC

0.78

ClinPred

0.66

GERP RS

5.0

Varity_R

0.78

gMVP

0.72

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