9-370272-G-C

Variant names:

• chr9-370272-G-C
• rs772385663
• NM_203447.4:c.1840G>C

Variant summary

Our verdict is Uncertain significance. The variant received 1 ACMG points: 2P and 1B. PM2 BP4

The NM_203447.4(DOCK8):​c.1840G>C​(p.Val614Leu) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant was absent in control chromosomes in GnomAD project. In-silico tool predicts a benign outcome for this variant. 14/22 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

• Frequency: Genomes: not found (cov: 33)
• Consequence: DOCK8 NM_203447.4 missense
• Clinical Significance: Uncertain significance criteria provided, single submitter U:1
• Conservation: PhyloP100: 3.10
• Publications: 1 publications found

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]

DOCK8 Gene-Disease associations (from GenCC):

• combined immunodeficiency due to DOCK8 deficiency

  Inheritance: AR Classification: DEFINITIVE, STRONG, MODERATE, SUPPORTIVE, LIMITED Submitted by: Ambry Genetics, Genomics England PanelApp, ClinGen, Orphanet, Labcorp Genetics (formerly Invitae), G2P
• autosomal dominant non-syndromic intellectual disability

  Inheritance: AD Classification: SUPPORTIVE Submitted by: Orphanet
• complex neurodevelopmental disorder

  Inheritance: AD Classification: LIMITED Submitted by: Ambry Genetics

ACMG classification

Our verdict: Uncertain_significance. The variant received 1 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• BP4: Computational evidence support a benign effect (MetaRNN=0.29971337).

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_203447.4. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	DOCK8	NM_203447.4	MANE Select	c.1840G>C	p.Val614Leu	missense	Exon 16 of 48	NP_982272.2	Q8NF50-1
	DOCK8	NM_001193536.2		c.1636G>C	p.Val546Leu	missense	Exon 15 of 47	NP_001180465.1	Q8NF50-3
	DOCK8	NM_001190458.2		c.1636G>C	p.Val546Leu	missense	Exon 15 of 46	NP_001177387.1	Q8NF50-4

Ensembl Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	DOCK8	ENST00000432829.7	TSL:1 MANE Select	c.1840G>C	p.Val614Leu	missense	Exon 16 of 48	ENSP00000394888.3	Q8NF50-1
	DOCK8	ENST00000469391.5	TSL:1	c.1636G>C	p.Val546Leu	missense	Exon 15 of 46	ENSP00000419438.1	Q8NF50-4
	DOCK8	ENST00000382329.2	TSL:1	c.1636G>C	p.Val546Leu	missense	Exon 16 of 46	ENSP00000371766.2	A2A369

Frequencies

GnomAD3 genomes Cov.: 33

GnomAD4 exome Cov.: 32

GnomAD4 genome Cov.: 33

ClinVar

ClinVar submissions

Significance: Uncertain significance

Revision: criteria provided, single submitter

Pathogenic	VUS	Benign	Condition
-	1	-	Combined immunodeficiency due to DOCK8 deficiency (1)

Computational scores

Source: dbNSFP v4.9

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Benign	0.17
BayesDel_addAF	Benign	-0.11	T
BayesDel_noAF	Benign	-0.39
CADD	Benign	22
DANN	Uncertain	1.0
DEOGEN2	Benign	0.15	T
Eigen	Benign	0.12
Eigen_PC	Uncertain	0.31
FATHMM_MKL	Uncertain	0.96	D
LIST_S2	Uncertain	0.91	D
M_CAP	Benign	0.0081	T
MetaRNN	Benign	0.30	T
MetaSVM	Benign	-1.1	T
MutationAssessor	Uncertain	2.3	M
PhyloP100		3.1
PrimateAI	Benign	0.42	T
PROVEAN	Benign	-1.2	N
REVEL	Benign	0.12
Sift	Benign	0.053	T
Sift4G	Uncertain	0.029	D
Polyphen		0.0050	B
Vest4		0.36
MutPred		0.54		Loss of phosphorylation at Y615 (P = 0.1694)
MVP		0.20
MPC		0.046
ClinPred		0.58	D
GERP RS		6.0
RBP_binding_hub_radar		0.0
RBP_regulation_power_radar		1.8
Varity_R		0.35
gMVP		0.45
Mutation Taster		=78/22	polymorphism

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

Other links and lift over

dbSNP: rs772385663; hg19: chr9-370272;