rs139391329

Variant summary

Our verdict is Benign. Variant got -13 ACMG points: 0P and 13B. BP4_StrongBP6BS1BS2

The NM_203447.4(DOCK8):​c.663C>A​(p.Asp221Glu) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00235 in 1,614,224 control chromosomes in the GnomAD database, including 9 homozygotes. In-silico tool predicts a benign outcome for this variant. 15/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Conflicting classifications of pathogenicity (no stars).

Frequency

Genomes: 𝑓 0.0017 ( 0 hom., cov: 32)
Exomes 𝑓: 0.0024 ( 9 hom. )

Consequence

DOCK8
NM_203447.4 missense

Scores

1
18

Clinical Significance

Conflicting classifications of pathogenicity criteria provided, conflicting classifications U:1B:5

Conservation

PhyloP100: 1.64
Variant links:
Genes affected
DOCK8 (HGNC:19191): (dedicator of cytokinesis 8) This gene encodes a member of the DOCK180 family of guanine nucleotide exchange factors. Guanine nucleotide exchange factors interact with Rho GTPases and are components of intracellular signaling networks. Mutations in this gene result in the autosomal recessive form of the hyper-IgE syndrome. Alternatively spliced transcript variants encoding different isoforms have been described.[provided by RefSeq, Jun 2010]

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Benign. Variant got -13 ACMG points.

BP4
Computational evidence support a benign effect (MetaRNN=0.004763007).
BP6
Variant 9-312088-C-A is Benign according to our data. Variant chr9-312088-C-A is described in ClinVar as [Conflicting_classifications_of_pathogenicity]. Clinvar id is 366546.We mark this variant Likely_benign, oryginal submissions are: {Likely_benign=2, Benign=1, Uncertain_significance=1}. Variant chr9-312088-C-A is described in Lovd as [Likely_benign].
BS1
Variant frequency is greater than expected in population nfe. gnomad4 allele frequency = 0.00169 (257/152340) while in subpopulation NFE AF= 0.00281 (191/68032). AF 95% confidence interval is 0.00248. There are 0 homozygotes in gnomad4. There are 123 alleles in male gnomad4 subpopulation. Median coverage is 32. This position pass quality control queck.
BS2
High Homozygotes in GnomAdExome4 at 9 AR gene

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
DOCK8NM_203447.4 linkc.663C>A p.Asp221Glu missense_variant Exon 6 of 48 ENST00000432829.7 NP_982272.2 Q8NF50-1

Ensembl

Gene Transcript HGVSc HGVSp Effect Exon rank TSL MANE Protein Appris UniProt
DOCK8ENST00000432829.7 linkc.663C>A p.Asp221Glu missense_variant Exon 6 of 48 1 NM_203447.4 ENSP00000394888.3 Q8NF50-1

Frequencies

GnomAD3 genomes
AF:
0.00169
AC:
257
AN:
152222
Hom.:
0
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.000748
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.000262
Gnomad ASJ
AF:
0.00
Gnomad EAS
AF:
0.000192
Gnomad SAS
AF:
0.00207
Gnomad FIN
AF:
0.00179
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.00281
Gnomad OTH
AF:
0.000478
GnomAD3 exomes
AF:
0.00175
AC:
440
AN:
251414
Hom.:
1
AF XY:
0.00183
AC XY:
248
AN XY:
135876
show subpopulations
Gnomad AFR exome
AF:
0.000738
Gnomad AMR exome
AF:
0.000463
Gnomad ASJ exome
AF:
0.0000992
Gnomad EAS exome
AF:
0.0000544
Gnomad SAS exome
AF:
0.00252
Gnomad FIN exome
AF:
0.00139
Gnomad NFE exome
AF:
0.00255
Gnomad OTH exome
AF:
0.00212
GnomAD4 exome
AF:
0.00242
AC:
3542
AN:
1461884
Hom.:
9
Cov.:
31
AF XY:
0.00241
AC XY:
1750
AN XY:
727246
show subpopulations
Gnomad4 AFR exome
AF:
0.000418
Gnomad4 AMR exome
AF:
0.000402
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.00
Gnomad4 SAS exome
AF:
0.00279
Gnomad4 FIN exome
AF:
0.00129
Gnomad4 NFE exome
AF:
0.00279
Gnomad4 OTH exome
AF:
0.00139
GnomAD4 genome
AF:
0.00169
AC:
257
AN:
152340
Hom.:
0
Cov.:
32
AF XY:
0.00165
AC XY:
123
AN XY:
74488
show subpopulations
Gnomad4 AFR
AF:
0.000746
Gnomad4 AMR
AF:
0.000261
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.000193
Gnomad4 SAS
AF:
0.00207
Gnomad4 FIN
AF:
0.00179
Gnomad4 NFE
AF:
0.00281
Gnomad4 OTH
AF:
0.000473
Alfa
AF:
0.00227
Hom.:
1
Bravo
AF:
0.00144
TwinsUK
AF:
0.00593
AC:
22
ALSPAC
AF:
0.00337
AC:
13
ESP6500AA
AF:
0.00136
AC:
6
ESP6500EA
AF:
0.00291
AC:
25
ExAC
AF:
0.00173
AC:
210
Asia WGS
AF:
0.000289
AC:
1
AN:
3478
EpiCase
AF:
0.00218
EpiControl
AF:
0.00124

ClinVar

Significance: Conflicting classifications of pathogenicity
Submissions summary: Uncertain:1Benign:5
Revision: criteria provided, conflicting classifications
LINK: link

Submissions by phenotype

not provided Benign:2
Jan 10, 2019
GeneDx
Significance: Likely benign
Review Status: criteria provided, single submitter
Collection Method: clinical testing

- -

Feb 01, 2025
CeGaT Center for Human Genetics Tuebingen
Significance: Likely benign
Review Status: criteria provided, single submitter
Collection Method: clinical testing

DOCK8: BP4, BS2 -

Combined immunodeficiency due to DOCK8 deficiency Uncertain:1
Jan 13, 2018
Illumina Laboratory Services, Illumina
Significance: Uncertain significance
Review Status: criteria provided, single submitter
Collection Method: clinical testing

This variant was observed in the ICSL laboratory as part of a predisposition screen in an ostensibly healthy population. It had not been previously curated by ICSL or reported in the Human Gene Mutation Database (HGMD: prior to June 1st, 2018), and was therefore a candidate for classification through an automated scoring system. Utilizing variant allele frequency, disease prevalence and penetrance estimates, and inheritance mode, an automated score was calculated to assess if this variant is too frequent to cause the disease. Based on the score, this variant could not be ruled out of causing disease and therefore its association with disease required further investigation. A literature search was performed for the gene, cDNA change, and amino acid change (if applicable). No publications were found based on this search. This variant was therefore classified as a variant of unknown significance for this disease. -

DOCK8-related disorder Benign:1
Aug 31, 2022
PreventionGenetics, part of Exact Sciences
Significance: Likely benign
Review Status: no assertion criteria provided
Collection Method: clinical testing

This variant is classified as likely benign based on ACMG/AMP sequence variant interpretation guidelines (Richards et al. 2015 PMID: 25741868, with internal and published modifications). -

Intellectual disability Benign:1
Jan 01, 2019
Centre de Biologie Pathologie Génétique, Centre Hospitalier Universitaire de Lille
Significance: Likely benign
Review Status: no assertion criteria provided
Collection Method: clinical testing

- -

Benign:1
Jan 29, 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
AlphaMissense
Benign
0.14
BayesDel_addAF
Benign
-0.54
T
BayesDel_noAF
Benign
-0.54
CADD
Benign
15
DANN
Benign
0.29
DEOGEN2
Benign
0.10
T;.;.
Eigen
Benign
-0.92
Eigen_PC
Benign
-0.68
FATHMM_MKL
Uncertain
0.81
D
LIST_S2
Benign
0.71
T;T;T
M_CAP
Benign
0.0042
T
MetaRNN
Benign
0.0048
T;T;T
MetaSVM
Benign
-0.96
T
MutationAssessor
Benign
-0.93
N;.;.
PrimateAI
Benign
0.43
T
PROVEAN
Benign
0.99
.;N;N
REVEL
Benign
0.057
Sift
Benign
1.0
.;T;T
Sift4G
Benign
1.0
T;T;T
Polyphen
0.0
B;.;.
Vest4
0.16
MutPred
0.20
Gain of helix (P = 0.0225);.;.;
MVP
0.20
MPC
0.042
ClinPred
0.0056
T
GERP RS
2.8
Varity_R
0.069
gMVP
0.23

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

LitVar

Below is the list of publications found by LitVar. It may be empty.

Other links and lift over

dbSNP: rs139391329; hg19: chr9-312088; API