chr5-169684341-C-T

Variant summary

Our verdict is Benign. Variant got -13 ACMG points: 1P and 14B. PP2BP4_StrongBP6_ModerateBS1BS2

The NM_004946.3(DOCK2):​c.752C>T​(p.Thr251Met) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00911 in 1,614,052 control chromosomes in the GnomAD database, including 114 homozygotes. In-silico tool predicts a benign outcome for this variant. 14/20 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Benign (★). Synonymous variant affecting the same amino acid position (i.e. T251T) has been classified as Likely benign.

Frequency

Genomes: 𝑓 0.013 ( 23 hom., cov: 33)
Exomes 𝑓: 0.0087 ( 91 hom. )

Consequence

DOCK2
NM_004946.3 missense

Scores

18

Clinical Significance

Benign criteria provided, single submitter B:1

Conservation

PhyloP100: -0.961
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]

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ACMG classification

Classification made for transcript

Verdict is Benign. Variant got -13 ACMG points.

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.
BP4
Computational evidence support a benign effect (MetaRNN=0.002072692).
BP6
Variant 5-169684341-C-T is Benign according to our data. Variant chr5-169684341-C-T is described in ClinVar as [Benign]. Clinvar id is 476018.Status of the report is criteria_provided_single_submitter, 1 stars.
BS1
Variant frequency is greater than expected in population afr. gnomad4 allele frequency = 0.0129 (1959/152278) while in subpopulation AFR AF= 0.0247 (1026/41532). AF 95% confidence interval is 0.0234. There are 23 homozygotes in gnomad4. There are 908 alleles in male gnomad4 subpopulation. Median coverage is 33. This position pass quality control queck.
BS2
High Homozygotes in GnomAd4 at 23 AR gene

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
DOCK2NM_004946.3 linkuse as main transcriptc.752C>T p.Thr251Met missense_variant 8/52 ENST00000520908.7

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
DOCK2ENST00000520908.7 linkuse as main transcriptc.752C>T p.Thr251Met missense_variant 8/522 NM_004946.3 P1Q92608-1
DOCK2ENST00000524185.5 linkuse as main transcriptc.752C>T p.Thr251Met missense_variant, NMD_transcript_variant 8/531
DOCK2ENST00000519628.2 linkuse as main transcriptc.752C>T p.Thr251Met missense_variant 8/283
DOCK2ENST00000522138.2 linkuse as main transcriptc.*262C>T 3_prime_UTR_variant, NMD_transcript_variant 8/523

Frequencies

GnomAD3 genomes
AF:
0.0129
AC:
1958
AN:
152160
Hom.:
23
Cov.:
33
show subpopulations
Gnomad AFR
AF:
0.0247
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.00753
Gnomad ASJ
AF:
0.0349
Gnomad EAS
AF:
0.000192
Gnomad SAS
AF:
0.0201
Gnomad FIN
AF:
0.00330
Gnomad MID
AF:
0.00316
Gnomad NFE
AF:
0.00800
Gnomad OTH
AF:
0.0105
GnomAD3 exomes
AF:
0.00924
AC:
2323
AN:
251292
Hom.:
22
AF XY:
0.00920
AC XY:
1249
AN XY:
135802
show subpopulations
Gnomad AFR exome
AF:
0.0249
Gnomad AMR exome
AF:
0.00477
Gnomad ASJ exome
AF:
0.0325
Gnomad EAS exome
AF:
0.000163
Gnomad SAS exome
AF:
0.0151
Gnomad FIN exome
AF:
0.00277
Gnomad NFE exome
AF:
0.00731
Gnomad OTH exome
AF:
0.0117
GnomAD4 exome
AF:
0.00872
AC:
12745
AN:
1461774
Hom.:
91
Cov.:
30
AF XY:
0.00894
AC XY:
6500
AN XY:
727200
show subpopulations
Gnomad4 AFR exome
AF:
0.0243
Gnomad4 AMR exome
AF:
0.00532
Gnomad4 ASJ exome
AF:
0.0344
Gnomad4 EAS exome
AF:
0.000101
Gnomad4 SAS exome
AF:
0.0160
Gnomad4 FIN exome
AF:
0.00258
Gnomad4 NFE exome
AF:
0.00762
Gnomad4 OTH exome
AF:
0.0112
GnomAD4 genome
AF:
0.0129
AC:
1959
AN:
152278
Hom.:
23
Cov.:
33
AF XY:
0.0122
AC XY:
908
AN XY:
74460
show subpopulations
Gnomad4 AFR
AF:
0.0247
Gnomad4 AMR
AF:
0.00738
Gnomad4 ASJ
AF:
0.0349
Gnomad4 EAS
AF:
0.000193
Gnomad4 SAS
AF:
0.0199
Gnomad4 FIN
AF:
0.00330
Gnomad4 NFE
AF:
0.00800
Gnomad4 OTH
AF:
0.0104
Alfa
AF:
0.00995
Hom.:
24
Bravo
AF:
0.0133
TwinsUK
AF:
0.00998
AC:
37
ALSPAC
AF:
0.00830
AC:
32
ESP6500AA
AF:
0.0234
AC:
103
ESP6500EA
AF:
0.00849
AC:
73
ExAC
AF:
0.00913
AC:
1108
Asia WGS
AF:
0.00953
AC:
33
AN:
3478
EpiCase
AF:
0.0103
EpiControl
AF:
0.00931

ClinVar

Significance: Benign
Submissions summary: Benign:1
Revision: criteria provided, single submitter
LINK: link

Submissions by phenotype

DOCK2 deficiency Benign:1
Benign, criteria provided, single submitterclinical testingInvitaeJan 31, 2024- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.057
BayesDel_addAF
Benign
-0.69
T
BayesDel_noAF
Benign
-0.74
CADD
Benign
1.2
DANN
Benign
0.91
DEOGEN2
Benign
0.096
T;T
Eigen
Benign
-1.3
Eigen_PC
Benign
-1.4
FATHMM_MKL
Benign
0.037
N
LIST_S2
Benign
0.69
.;T
MetaRNN
Benign
0.0021
T;T
MetaSVM
Benign
-1.1
T
MutationAssessor
Benign
1.0
L;L
MutationTaster
Benign
1.0
N
PrimateAI
Benign
0.27
T
PROVEAN
Benign
-0.96
N;.
REVEL
Benign
0.045
Sift
Benign
0.15
T;.
Sift4G
Benign
0.10
T;.
Polyphen
0.0050
B;B
Vest4
0.16
MVP
0.32
MPC
0.54
ClinPred
0.0017
T
GERP RS
-8.5
Varity_R
0.013
gMVP
0.22

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.

Other links and lift over

dbSNP: rs78243868; hg19: chr5-169111345; COSMIC: COSV99074212; COSMIC: COSV99074212; API