6-24357652-G-A

Variant summary

Our verdict is Likely benign. Variant got -5 ACMG points: 2P and 7B. PM2BP4_StrongBP6_ModerateBP7

The ENST00000378454.8(DCDC2):​c.99C>T​(p.Arg33=) variant causes a synonymous change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000342 in 1,461,092 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 Likely benign (★).

Frequency

Genomes: not found (cov: 33)
Exomes 𝑓: 0.0000034 ( 0 hom. )

Consequence

DCDC2
ENST00000378454.8 synonymous

Scores

1
4
12

Clinical Significance

Likely benign criteria provided, single submitter B:1

Conservation

PhyloP100: -0.202
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]
KAAG1 (HGNC:21031): (kidney associated DCDC2 antisense RNA 1)

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Likely_benign. Variant got -5 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
BP4
Computational evidence support a benign effect (MetaRNN=0.057292044).
BP6
Variant 6-24357652-G-A is Benign according to our data. Variant chr6-24357652-G-A is described in ClinVar as [Likely_benign]. Clinvar id is 1954576.Status of the report is criteria_provided_single_submitter, 1 stars.
BP7
Synonymous conserved (PhyloP=-0.202 with no splicing effect.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
DCDC2NM_016356.5 linkuse as main transcriptc.99C>T p.Arg33= synonymous_variant 1/10 ENST00000378454.8 NP_057440.2
KAAG1NR_174942.1 linkuse as main transcriptn.750G>A non_coding_transcript_exon_variant 1/1
DCDC2NM_001195610.2 linkuse as main transcriptc.99C>T p.Arg33= synonymous_variant 2/11 NP_001182539.1

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
DCDC2ENST00000378454.8 linkuse as main transcriptc.99C>T p.Arg33= synonymous_variant 1/101 NM_016356.5 ENSP00000367715 P1Q9UHG0-1
KAAG1ENST00000274766.2 linkuse as main transcriptn.750G>A non_coding_transcript_exon_variant 1/1
DCDC2ENST00000436313.1 linkuse as main transcriptc.3C>T p.Ter1= coding_sequence_variant 1/33 ENSP00000410939

Frequencies

GnomAD3 genomes
Cov.:
33
GnomAD3 exomes
AF:
0.00000807
AC:
2
AN:
247884
Hom.:
0
AF XY:
0.00000743
AC XY:
1
AN XY:
134590
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:
0.0000327
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.00000904
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.00000342
AC:
5
AN:
1461092
Hom.:
0
Cov.:
31
AF XY:
0.00000688
AC XY:
5
AN XY:
726862
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:
0.00000450
Gnomad4 OTH exome
AF:
0.00
GnomAD4 genome
Cov.:
33
Bravo
AF:
0.00000378
ExAC
AF:
0.00000824
AC:
1
EpiCase
AF:
0.0000545
EpiControl
AF:
0.00

ClinVar

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

Submissions by phenotype

Autosomal recessive nonsyndromic hearing loss 66;C4479344:Isolated neonatal sclerosing cholangitis Benign:1
Likely benign, criteria provided, single submitterclinical testingLabcorp Genetics (formerly Invitae), LabcorpOct 24, 2022- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.11
BayesDel_addAF
Uncertain
0.13
D
BayesDel_noAF
Uncertain
0.050
CADD
Benign
16
DANN
Uncertain
1.0
DEOGEN2
Benign
0.18
T
Eigen
Benign
-0.14
Eigen_PC
Benign
-0.15
FATHMM_MKL
Benign
0.37
N
LIST_S2
Benign
0.31
T
M_CAP
Benign
0.012
T
MetaRNN
Benign
0.057
T
MetaSVM
Benign
-1.0
T
MutationTaster
Benign
1.0
D;N
PrimateAI
Benign
0.30
T
PROVEAN
Uncertain
-4.0
D
REVEL
Benign
0.13
Sift4G
Pathogenic
0.0
D
Polyphen
0.48
P
Vest4
0.071
MutPred
0.11
Gain of phosphorylation at A5 (P = 0.0191);
MVP
0.072
MPC
1.8
ClinPred
0.92
D
GERP RS
0.90
RBP_binding_hub_radar
0.0
RBP_regulation_power_radar
1.7
Varity_R
0.51
gMVP
0.028

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: rs755386397; hg19: chr6-24357880; API