6-24357589-G-A

Variant summary

Our verdict is Likely benign. Variant got -4 ACMG points: 2P and 6B. PM2BP4_StrongBP6BP7

The NM_016356.5(DCDC2):​c.162C>T​(p.Gly54Gly) variant causes a synonymous change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000000684 in 1,461,158 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 (no stars).

Frequency

Genomes: not found (cov: 33)
Exomes 𝑓: 6.8e-7 ( 0 hom. )

Consequence

DCDC2
NM_016356.5 synonymous

Scores

2

Clinical Significance

Likely benign no assertion criteria provided B:1

Conservation

PhyloP100: 0.700
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)

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ACMG classification

Classification made for transcript

Verdict is Likely_benign. Variant got -4 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
BP4
Computational evidence support a benign effect (BayesDel_noAF=-0.52).
BP6
Variant 6-24357589-G-A is Benign according to our data. Variant chr6-24357589-G-A is described in ClinVar as [Likely_benign]. Clinvar id is 3048480.Status of the report is no_assertion_criteria_provided, 0 stars.
BP7
Synonymous conserved (PhyloP=0.7 with no splicing effect.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
DCDC2NM_016356.5 linkuse as main transcriptc.162C>T p.Gly54Gly synonymous_variant 1/10 ENST00000378454.8 NP_057440.2
DCDC2NM_001195610.2 linkuse as main transcriptc.162C>T p.Gly54Gly synonymous_variant 2/11 NP_001182539.1
KAAG1NR_174942.1 linkuse as main transcriptn.687G>A non_coding_transcript_exon_variant 1/1

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
DCDC2ENST00000378454.8 linkuse as main transcriptc.162C>T p.Gly54Gly synonymous_variant 1/101 NM_016356.5 ENSP00000367715.3 Q9UHG0-1
KAAG1ENST00000274766.2 linkuse as main transcriptn.687G>A non_coding_transcript_exon_variant 1/16 NM_181337.4
DCDC2ENST00000436313.1 linkuse as main transcriptc.63C>T p.Gly21Gly synonymous_variant 1/33 ENSP00000410939.1 H0Y784

Frequencies

GnomAD3 genomes
Cov.:
33
GnomAD4 exome
AF:
6.84e-7
AC:
1
AN:
1461158
Hom.:
0
Cov.:
31
AF XY:
0.00000138
AC XY:
1
AN XY:
726900
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:
8.99e-7
Gnomad4 OTH exome
AF:
0.00
GnomAD4 genome
Cov.:
33

ClinVar

Significance: Likely benign
Submissions summary: Benign:1
Revision: no assertion criteria provided
LINK: link

Submissions by phenotype

DCDC2-related disorder Benign:1
Likely benign, no assertion criteria providedclinical testingPreventionGenetics, part of Exact SciencesApr 18, 2022This variant is classified as likely benign based on ACMG/AMP sequence variant interpretation guidelines (Richards et al. 2015 PMID: 25741868, with internal and published modifications). -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
BayesDel_noAF
Benign
-0.52
CADD
Benign
17
DANN
Benign
0.85
RBP_binding_hub_radar
0.0
RBP_regulation_power_radar
1.7

Splicing

Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
0.060
Details are displayed if max score is > 0.2

Find out detailed SpliceAI scores and Pangolin per-transcript scores at spliceailookup.broadinstitute.org

Publications

No publications associated with this variant yet.

Other links and lift over

hg19: chr6-24357817; API