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GeneBe

4-150198082-C-A

Variant summary

Our verdict is Uncertain significance. Variant got 0 ACMG points: 0P and 0B.

The NM_001040260.4(DCLK2):c.940C>A(p.Arg314Ser) variant causes a missense change. The variant allele was found at a frequency of 0.00000372 in 1,613,330 control chromosomes in the GnomAD database, with no homozygous occurrence. Variant has been reported in ClinVar as Uncertain significance (★). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. R314H) has been classified as Uncertain significance.

Frequency

Genomes: 𝑓 0.0000066 ( 0 hom., cov: 32)
Exomes 𝑓: 0.0000034 ( 0 hom. )

Consequence

DCLK2
NM_001040260.4 missense

Scores

4
9
6

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 6.71
Variant links:
Genes affected
DCLK2 (HGNC:19002): (doublecortin like kinase 2) This gene encodes a member of the protein kinase superfamily and the doublecortin family. The protein encoded by this gene contains two N-terminal doublecortin domains, which bind microtubules and regulate microtubule polymerization, a C-terminal serine/threonine protein kinase domain, which shows substantial homology to Ca2+/calmodulin-dependent protein kinase, and a serine/proline-rich domain in between the doublecortin and the protein kinase domains, which mediates multiple protein-protein interactions. The microtubule-polymerizing activity of the encoded protein is independent of its protein kinase activity. Mouse studies show that the DCX gene, another family member, and this gene share function in the establishment of hippocampal organization and that their absence results in a severe epileptic phenotype and lethality, as described in human patients with lissencephaly. Multiple alternatively spliced transcript variants have been identified. [provided by RefSeq, Sep 2010]

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ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 0 ACMG points.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
DCLK2NM_001040260.4 linkuse as main transcriptc.940C>A p.Arg314Ser missense_variant 4/16 ENST00000296550.12

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
DCLK2ENST00000296550.12 linkuse as main transcriptc.940C>A p.Arg314Ser missense_variant 4/161 NM_001040260.4 P4Q8N568-1

Frequencies

GnomAD3 genomes
AF:
0.00000658
AC:
1
AN:
152082
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:
0.00
Gnomad OTH
AF:
0.000479
GnomAD3 exomes
AF:
0.00000399
AC:
1
AN:
250538
Hom.:
0
AF XY:
0.00000739
AC XY:
1
AN XY:
135408
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:
0.00000882
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.00000342
AC:
5
AN:
1461248
Hom.:
0
Cov.:
30
AF XY:
0.00000138
AC XY:
1
AN XY:
726912
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:
0.0000116
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.00000360
Gnomad4 OTH exome
AF:
0.00
GnomAD4 genome
AF:
0.00000658
AC:
1
AN:
152082
Hom.:
0
Cov.:
32
AF XY:
0.00
AC XY:
0
AN XY:
74292
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:
0.00
Gnomad4 OTH
AF:
0.000479
Bravo
AF:
0.0000340

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 GeneticsAug 02, 2023The c.940C>A (p.R314S) alteration is located in exon 4 (coding exon 4) of the DCLK2 gene. This alteration results from a C to A substitution at nucleotide position 940, causing the arginine (R) at amino acid position 314 to be replaced by a serine (S). 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
0.94
BayesDel_addAF
Pathogenic
0.18
D
BayesDel_noAF
Uncertain
0.020
Cadd
Uncertain
25
Dann
Uncertain
1.0
DEOGEN2
Benign
0.18
T;T;.;.
Eigen
Uncertain
0.65
Eigen_PC
Pathogenic
0.68
FATHMM_MKL
Pathogenic
0.97
D
LIST_S2
Uncertain
0.95
D;D;D;D
M_CAP
Benign
0.058
D
MetaRNN
Uncertain
0.48
T;T;T;T
MetaSVM
Uncertain
-0.048
T
MutationAssessor
Uncertain
2.7
M;.;M;M
MutationTaster
Benign
1.0
D;D;D
PrimateAI
Uncertain
0.54
T
PROVEAN
Uncertain
-2.6
D;.;N;N
REVEL
Benign
0.27
Sift
Benign
0.051
T;.;T;T
Sift4G
Benign
0.13
T;T;T;T
Polyphen
0.71
P;.;D;P
Vest4
0.65
MutPred
0.39
Gain of phosphorylation at R314 (P = 9e-04);Gain of phosphorylation at R314 (P = 9e-04);Gain of phosphorylation at R314 (P = 9e-04);Gain of phosphorylation at R314 (P = 9e-04);
MVP
0.68
MPC
0.99
ClinPred
0.97
D
GERP RS
5.5
Varity_R
0.59
gMVP
0.51

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: rs552302947; hg19: chr4-151119234; API