Genetic Variant DOCK1:p.Tyr46Cys (chr10-126977954-A-G) – ACMG Classification: Likely_pathogenic (6 pts)

Variant summary

Our verdict is Likely pathogenic. The variant received 6 ACMG points: 6P and 0B. PM2PP3_Strong

The NM_001290223.2(DOCK1):c.137A>G(p.Tyr46Cys) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000342 in 1,461,684 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a pathogenic outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: not found (cov: 32)

Exomes 𝑓: 0.0000034 ( 0 hom. )

Consequence

DOCK1
NM_001290223.2 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 2.90

Publications

0 publications found

Variant links:

Genes affected

DOCK1 (HGNC:2987): (dedicator of cytokinesis 1) This gene encodes a member of the dedicator of cytokinesis protein family. Dedicator of cytokinesis proteins act as guanine nucleotide exchange factors for small Rho family G proteins. The encoded protein regulates the small GTPase Rac, thereby influencing several biological processes, including phagocytosis and cell migration. Overexpression of this gene has also been associated with certain cancers. Alternative splicing results in multiple transcript variants. [provided by RefSeq, Mar 2014]

DOCK1 links:

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ACMG classification

Classification was made for transcript

Our verdict: Likely_pathogenic. The variant received 6 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

PP3

MetaRNN computational evidence supports a deleterious effect, 0.948

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
DOCK1	NM_001290223.2 link	c.137A>G	p.Tyr46Cys	missense_variant	Exon 3 of 52	ENST00000623213.2	NP_001277152.2	B2RUU3

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
DOCK1	ENST00000623213.2 link	c.137A>G	p.Tyr46Cys	missense_variant	Exon 3 of 52	1	NM_001290223.2	ENSP00000485033.1		A0A096LNH6
DOCK1	ENST00000280333.9 link	c.137A>G	p.Tyr46Cys	missense_variant	Exon 3 of 52	1		ENSP00000280333.6		Q14185

Frequencies

GnomAD3 genomes

Cov.:

GnomAD2 exomes

AF:

0.00000802

AC:

AN:

249226

AF XY:

0.0000148

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.0000579

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.00

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.00000342

AC:

AN:

1461684

Hom.:

Cov.:

AF XY:

0.00000275

AC XY:

AN XY:

727128

show subpopulations

African (AFR)

AF:

0.00

AC:

AN:

33480

American (AMR)

AF:

0.000112

AC:

AN:

44724

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

26136

East Asian (EAS)

AF:

0.00

AC:

AN:

39700

South Asian (SAS)

AF:

0.00

AC:

AN:

86250

European-Finnish (FIN)

AF:

0.00

AC:

AN:

53402

Middle Eastern (MID)

AF:

0.00

AC:

AN:

5768

European-Non Finnish (NFE)

AF:

0.00

AC:

AN:

1111852

Other (OTH)

AF:

0.00

AC:

AN:

60372

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.405

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

GnomAD4 genome

Cov.:

Alfa

AF:

0.00

Hom.:

Bravo

AF:

0.00000378

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

not specified

Uncertain:1

Mar 17, 2025

Ambry Genetics

Significance:Uncertain significance

Review Status:criteria provided, single submitter

Collection Method:clinical testing

The c.137A>G (p.Y46C) alteration is located in exon 3 (coding exon 3) of the DOCK1 gene. This alteration results from a A to G substitution at nucleotide position 137, causing the tyrosine (Y) at amino acid position 46 to be replaced by a cysteine (C). Based on insufficient or conflicting evidence, the clinical significance of this alteration remains unclear. -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Pathogenic

0.82

BayesDel_addAF

Benign

-0.029

BayesDel_noAF

Benign

-0.10

CADD

Pathogenic

(source)

DANN

Uncertain

1.0

DEOGEN2

Benign

0.28

T;T

Eigen

Uncertain

0.51

Eigen_PC

Uncertain

0.47

FATHMM_MKL

Uncertain

0.90

LIST_S2

Uncertain

0.90

D;D

M_CAP

Benign

0.031

MetaRNN

Pathogenic

0.95

D;D

MetaSVM

Benign

-0.94

MutationAssessor

Benign

1.9

L;.

PhyloP100

2.9

PrimateAI

Pathogenic

0.84

PROVEAN

Pathogenic

-7.3

D;.

REVEL

Uncertain

0.45

Sift

Pathogenic

0.0

D;.

Sift4G

Uncertain

0.0050

D;D

Polyphen

1.0

D;.

Vest4

0.85

MutPred

0.90

Loss of MoRF binding (P = 0.0953);Loss of MoRF binding (P = 0.0953);

MVP

0.76

MPC

0.96

ClinPred

1.0

GERP RS

3.9

Varity_R

0.82

gMVP

0.94

Mutation Taster

=83/17

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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chr10-126977954-A-G

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

Publications

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

Age Distribution

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

Other links and lift over