X-111400961-C-T

Variant summary

Our verdict is Benign. Variant got -20 ACMG points: 0P and 20B. BP4_StrongBP6_Very_StrongBA1

The NM_001195553.2(DCX):​c.705+29G>A variant causes a intron change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0058 in 1,175,072 control chromosomes in the GnomAD database, including 70 homozygotes. There are 2,072 hemizygotes in GnomAD. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Benign (★★).

Frequency

Genomes: 𝑓 0.017 ( 35 hom., 481 hem., cov: 23)
Exomes 𝑓: 0.0046 ( 35 hom. 1591 hem. )

Consequence

DCX
NM_001195553.2 intron

Scores

2

Clinical Significance

Benign criteria provided, multiple submitters, no conflicts B:3

Conservation

PhyloP100: 0.0250
Variant links:
Genes affected
DCX (HGNC:2714): (doublecortin) This gene encodes a member of the doublecortin family. The protein encoded by this gene is a cytoplasmic protein and contains two doublecortin domains, which bind microtubules. In the developing cortex, cortical neurons must migrate over long distances to reach the site of their final differentiation. The encoded protein appears to direct neuronal migration by regulating the organization and stability of microtubules. In addition, the encoded protein interacts with LIS1, the regulatory gamma subunit of platelet activating factor acetylhydrolase, and this interaction is important to proper microtubule function in the developing cortex. Mutations in this gene cause abnormal migration of neurons during development and disrupt the layering of the cortex, leading to epilepsy, cognitive disability, subcortical band heterotopia ("double cortex" syndrome) in females and lissencephaly ("smooth brain" syndrome) in males. Multiple transcript variants encoding different isoforms have been found for this gene. [provided by RefSeq, Sep 2010]

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ACMG classification

Classification made for transcript

Verdict is Benign. Variant got -20 ACMG points.

BP4
Computational evidence support a benign effect (BayesDel_noAF=-0.9).
BP6
Variant X-111400961-C-T is Benign according to our data. Variant chrX-111400961-C-T is described in ClinVar as [Benign]. Clinvar id is 262925.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars. Variant chrX-111400961-C-T is described in Lovd as [Benign].
BA1
GnomAdExome4 highest subpopulation (AFR) allele frequency at 95% confidence interval = 0.0539 is higher than 0.05.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
DCXNM_001195553.2 linkuse as main transcriptc.705+29G>A intron_variant ENST00000636035.2

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
DCXENST00000636035.2 linkuse as main transcriptc.705+29G>A intron_variant 2 NM_001195553.2 A1

Frequencies

GnomAD3 genomes
AF:
0.0169
AC:
1899
AN:
112089
Hom.:
35
Cov.:
23
AF XY:
0.0139
AC XY:
478
AN XY:
34293
show subpopulations
Gnomad AFR
AF:
0.0512
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.00858
Gnomad ASJ
AF:
0.000378
Gnomad EAS
AF:
0.000279
Gnomad SAS
AF:
0.0115
Gnomad FIN
AF:
0.000491
Gnomad MID
AF:
0.0127
Gnomad NFE
AF:
0.00340
Gnomad OTH
AF:
0.00929
GnomAD3 exomes
AF:
0.00713
AC:
1271
AN:
178369
Hom.:
20
AF XY:
0.00602
AC XY:
391
AN XY:
64973
show subpopulations
Gnomad AFR exome
AF:
0.0572
Gnomad AMR exome
AF:
0.00361
Gnomad ASJ exome
AF:
0.000136
Gnomad EAS exome
AF:
0.0000731
Gnomad SAS exome
AF:
0.00828
Gnomad FIN exome
AF:
0.000391
Gnomad NFE exome
AF:
0.00321
Gnomad OTH exome
AF:
0.00519
GnomAD4 exome
AF:
0.00462
AC:
4914
AN:
1062928
Hom.:
35
Cov.:
26
AF XY:
0.00477
AC XY:
1591
AN XY:
333760
show subpopulations
Gnomad4 AFR exome
AF:
0.0563
Gnomad4 AMR exome
AF:
0.00431
Gnomad4 ASJ exome
AF:
0.000261
Gnomad4 EAS exome
AF:
0.000234
Gnomad4 SAS exome
AF:
0.00969
Gnomad4 FIN exome
AF:
0.000672
Gnomad4 NFE exome
AF:
0.00303
Gnomad4 OTH exome
AF:
0.00614
GnomAD4 genome
AF:
0.0169
AC:
1899
AN:
112144
Hom.:
35
Cov.:
23
AF XY:
0.0140
AC XY:
481
AN XY:
34358
show subpopulations
Gnomad4 AFR
AF:
0.0510
Gnomad4 AMR
AF:
0.00857
Gnomad4 ASJ
AF:
0.000378
Gnomad4 EAS
AF:
0.000280
Gnomad4 SAS
AF:
0.0116
Gnomad4 FIN
AF:
0.000491
Gnomad4 NFE
AF:
0.00340
Gnomad4 OTH
AF:
0.00917
Alfa
AF:
0.0139
Hom.:
70
Bravo
AF:
0.0191

ClinVar

Significance: Benign
Submissions summary: Benign:3
Revision: criteria provided, multiple submitters, no conflicts
LINK: link

Submissions by phenotype

not provided Benign:2
Benign, criteria provided, single submitternot providedBreakthrough Genomics, Breakthrough Genomics-- -
Benign, criteria provided, single submitterclinical testingGeneDxJun 26, 2018- -
not specified Benign:1
Benign, criteria provided, single submitterclinical testingPreventionGenetics, part of Exact Sciences-- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
BayesDel_noAF
Benign
-0.90
CADD
Benign
1.7
DANN
Benign
0.74

Splicing

Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
0.010
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: rs61036541; hg19: chrX-110644189; API