8-21909744-C-A

Variant summary

Our verdict is Uncertain significance. Variant got 1 ACMG points: 2P and 1B. PM2BP4

The NM_003974.4(DOK2):​c.806G>T​(p.Ser269Ile) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000496 in 1,613,642 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.0000066 ( 0 hom., cov: 32)
Exomes 𝑓: 0.0000048 ( 0 hom. )

Consequence

DOK2
NM_003974.4 missense

Scores

1
7
11

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 2.78
Variant links:
Genes affected
DOK2 (HGNC:2991): (docking protein 2) The protein encoded by this gene is constitutively tyrosine phosphorylated in hematopoietic progenitors isolated from chronic myelogenous leukemia (CML) patients in the chronic phase. It may be a critical substrate for p210(bcr/abl), a chimeric protein whose presence is associated with CML. This encoded protein binds p120 (RasGAP) from CML cells. [provided by RefSeq, Jul 2008]

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 1 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
BP4
Computational evidence support a benign effect (MetaRNN=0.35737032).

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
DOK2NM_003974.4 linkuse as main transcriptc.806G>T p.Ser269Ile missense_variant 5/5 ENST00000276420.9
DOK2NM_001401272.1 linkuse as main transcriptc.524G>T p.Ser175Ile missense_variant 4/4
DOK2NM_001317800.2 linkuse as main transcriptc.344G>T p.Ser115Ile missense_variant 3/3
DOK2NM_201349.3 linkuse as main transcriptc.344G>T p.Ser115Ile missense_variant 4/4

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
DOK2ENST00000276420.9 linkuse as main transcriptc.806G>T p.Ser269Ile missense_variant 5/51 NM_003974.4 P1
DOK2ENST00000518197.1 linkuse as main transcriptc.344G>T p.Ser115Ile missense_variant 3/31
DOK2ENST00000524001.1 linkuse as main transcriptn.712G>T non_coding_transcript_exon_variant 3/32
DOK2ENST00000517422.5 linkuse as main transcriptc.*346G>T 3_prime_UTR_variant, NMD_transcript_variant 4/42

Frequencies

GnomAD3 genomes
AF:
0.00000657
AC:
1
AN:
152172
Hom.:
0
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.00
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.00
Gnomad ASJ
AF:
0.00
Gnomad EAS
AF:
0.00
Gnomad SAS
AF:
0.00
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.0000147
Gnomad OTH
AF:
0.00
GnomAD3 exomes
AF:
0.0000120
AC:
3
AN:
250868
Hom.:
0
AF XY:
0.00000737
AC XY:
1
AN XY:
135688
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.00
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad SAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.0000264
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.00000479
AC:
7
AN:
1461470
Hom.:
0
Cov.:
32
AF XY:
0.00000550
AC XY:
4
AN XY:
727074
show subpopulations
Gnomad4 AFR exome
AF:
0.00
Gnomad4 AMR exome
AF:
0.00
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.00
Gnomad4 SAS exome
AF:
0.00
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.00000629
Gnomad4 OTH exome
AF:
0.00
GnomAD4 genome
AF:
0.00000657
AC:
1
AN:
152172
Hom.:
0
Cov.:
32
AF XY:
0.0000135
AC XY:
1
AN XY:
74334
show subpopulations
Gnomad4 AFR
AF:
0.00
Gnomad4 AMR
AF:
0.00
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.00
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.0000147
Gnomad4 OTH
AF:
0.00
Alfa
AF:
0.0000434
Hom.:
0
Bravo
AF:
0.00000756
EpiCase
AF:
0.00
EpiControl
AF:
0.0000593

ClinVar

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

Submissions by phenotype

not specified Uncertain:1
Uncertain significance, criteria provided, single submitterclinical testingAmbry GeneticsNov 17, 2022The c.806G>T (p.S269I) alteration is located in exon 5 (coding exon 5) of the DOK2 gene. This alteration results from a G to T substitution at nucleotide position 806, causing the serine (S) at amino acid position 269 to be replaced by an isoleucine (I). 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
Benign
0.21
BayesDel_addAF
Benign
-0.016
T
BayesDel_noAF
Benign
-0.20
CADD
Benign
20
DANN
Uncertain
0.99
DEOGEN2
Uncertain
0.42
T;T
Eigen
Benign
0.088
Eigen_PC
Benign
0.025
FATHMM_MKL
Benign
0.34
N
LIST_S2
Benign
0.71
T;T
M_CAP
Pathogenic
0.45
D
MetaRNN
Benign
0.36
T;T
MetaSVM
Uncertain
0.031
D
MutationAssessor
Uncertain
2.7
M;.
MutationTaster
Benign
0.96
D;D
PrimateAI
Uncertain
0.49
T
PROVEAN
Benign
-2.0
N;N
REVEL
Uncertain
0.33
Sift
Uncertain
0.0020
D;D
Sift4G
Benign
0.089
T;T
Polyphen
0.98
D;.
Vest4
0.23
MutPred
0.18
Loss of phosphorylation at S269 (P = 0.0028);.;
MVP
0.95
MPC
0.20
ClinPred
0.73
D
GERP RS
4.3
Varity_R
0.19
gMVP
0.58

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: rs1434873122; hg19: chr8-21767255; API