Variant 6-24357606-T-G details in Genebe, Genetics Data Aggregator

Variant summary

Our verdict is Uncertain significance. Variant got 2 ACMG points: 2P and 0B. PM2

The ENST00000378454.8(DCDC2):c.145A>C(p.Lys49Gln) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000657 in 152,190 control chromosomes in the GnomAD database, with no homozygous occurrence. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

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

Consequence

DCDC2
ENST00000378454.8 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 2.47

Variant links:

Genes affected

DCDC2 (HGNC:18141): (doublecortin domain containing 2) This gene encodes a doublecortin domain-containing family member. The doublecortin domain has been demonstrated to bind tubulin and enhance microtubule polymerization. This family member is thought to function in neuronal migration where it may affect the signaling of primary cilia. Mutations in this gene have been associated with reading disability (RD) type 2, also referred to as developmental dyslexia. Alternatively spliced transcript variants encoding the same protein have been found for this gene. [provided by RefSeq, Jan 2013]

DCDC2 links:

KAAG1 (HGNC:21031): (kidney associated DCDC2 antisense RNA 1)

KAAG1 links:

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ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 2 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein
DCDC2	NM_016356.5 linkuse as main transcript	c.145A>C	p.Lys49Gln	missense_variant	1/10	ENST00000378454.8	NP_057440.2
KAAG1	NR_174942.1 linkuse as main transcript	n.704T>G		non_coding_transcript_exon_variant	1/1
DCDC2	NM_001195610.2 linkuse as main transcript	c.145A>C	p.Lys49Gln	missense_variant	2/11		NP_001182539.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris	UniProt
DCDC2	ENST00000378454.8 linkuse as main transcript	c.145A>C	p.Lys49Gln	missense_variant	1/10	1	NM_016356.5	ENSP00000367715	P1	Q9UHG0-1
KAAG1	ENST00000274766.2 linkuse as main transcript	n.704T>G		non_coding_transcript_exon_variant	1/1
DCDC2	ENST00000436313.1 linkuse as main transcript	c.49A>C	p.Lys17Gln	missense_variant	1/3	3		ENSP00000410939

Frequencies

GnomAD3 genomes

AF:

0.00000657

AC:

AN:

152190

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.0000241

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:

0.00

GnomAD4 exome

Cov.:

GnomAD4 genome

AF:

0.00000657

AC:

AN:

152190

Hom.:

Cov.:

AF XY:

0.00

AC XY:

AN XY:

74350

show subpopulations

Gnomad4 AFR

AF:

0.0000241

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:

0.00

Bravo

AF:

0.00000756

ExAC

AF:

0.00000824

AC:

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

not provided

Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

GeneDx

Apr 26, 2024

Not observed at significant frequency in large population cohorts (gnomAD); In silico analysis indicates that this missense variant does not alter protein structure/function; Has not been previously published as pathogenic or benign to our knowledge -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.21

BayesDel_addAF

Uncertain

0.038

BayesDel_noAF

Benign

-0.18

CADD

Uncertain

DANN

Benign

0.96

DEOGEN2

Uncertain

0.43

Eigen

Benign

0.15

Eigen_PC

Uncertain

0.28

FATHMM_MKL

Benign

0.74

LIST_S2

Benign

0.66

M_CAP

Benign

0.019

MetaRNN

Uncertain

0.44

MetaSVM

Benign

-0.98

MutationAssessor

Benign

0.75

MutationTaster

Benign

0.99

D;D

PrimateAI

Uncertain

0.51

PROVEAN

Benign

-0.72

REVEL

Uncertain

0.43

Sift

Benign

0.22

Sift4G

Benign

0.11

Polyphen

0.98

Vest4

0.10

MutPred

0.45

Loss of ubiquitination at K49 (P = 0.0233);

MVP

0.93

MPC

1.2

ClinPred

0.65

GERP RS

5.7

RBP_binding_hub_radar

0.0

RBP_regulation_power_radar

2.7

Varity_R

0.11

gMVP

0.49

Splicing

Name

Calibrated prediction

Score

Prediction

SpliceAI score (max)

0.12

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.

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

LitVar

Other links and lift over