X-111301414-G-A

Variant summary

Our verdict is Benign. Variant got -14 ACMG points: 0P and 14B. BP4_StrongBP6_ModerateBS1BS2

The NM_001195553.2(DCX):​c.*273C>T variant causes a 3 prime UTR change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00183 in 402,534 control chromosomes in the GnomAD database, including 2 homozygotes. There are 181 hemizygotes in GnomAD. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Likely benign (★).

Frequency

Genomes: 𝑓 0.0047 ( 2 hom., 142 hem., cov: 23)
Exomes 𝑓: 0.00071 ( 0 hom. 39 hem. )

Consequence

DCX
NM_001195553.2 3_prime_UTR

Scores

2

Clinical Significance

Likely benign criteria provided, single submitter B:1

Conservation

PhyloP100: 0.237
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 -14 ACMG points.

BP4
Computational evidence support a benign effect (BayesDel_noAF=-0.9).
BP6
Variant X-111301414-G-A is Benign according to our data. Variant chrX-111301414-G-A is described in ClinVar as [Likely_benign]. Clinvar id is 1212152.Status of the report is criteria_provided_single_submitter, 1 stars.
BS1
Variant frequency is greater than expected in population afr. gnomad4 allele frequency = 0.00475 (531/111900) while in subpopulation AFR AF= 0.0161 (497/30799). AF 95% confidence interval is 0.015. There are 2 homozygotes in gnomad4. There are 142 alleles in male gnomad4 subpopulation. Median coverage is 23. This position pass quality control queck.
BS2
High Homozygotes in GnomAd4 at 2 XL gene

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
DCXNM_001195553.2 linkuse as main transcriptc.*273C>T 3_prime_UTR_variant 7/7 ENST00000636035.2

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
DCXENST00000636035.2 linkuse as main transcriptc.*273C>T 3_prime_UTR_variant 7/72 NM_001195553.2 A1

Frequencies

GnomAD3 genomes
AF:
0.00472
AC:
528
AN:
111845
Hom.:
2
Cov.:
23
AF XY:
0.00409
AC XY:
139
AN XY:
34011
show subpopulations
Gnomad AFR
AF:
0.0161
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.00237
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:
0.0000376
Gnomad OTH
AF:
0.00465
GnomAD4 exome
AF:
0.000709
AC:
206
AN:
290634
Hom.:
0
Cov.:
0
AF XY:
0.000434
AC XY:
39
AN XY:
89760
show subpopulations
Gnomad4 AFR exome
AF:
0.0175
Gnomad4 AMR exome
AF:
0.00120
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:
0.0000455
Gnomad4 OTH exome
AF:
0.00149
GnomAD4 genome
AF:
0.00475
AC:
531
AN:
111900
Hom.:
2
Cov.:
23
AF XY:
0.00417
AC XY:
142
AN XY:
34076
show subpopulations
Gnomad4 AFR
AF:
0.0161
Gnomad4 AMR
AF:
0.00237
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.00
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.0000376
Gnomad4 OTH
AF:
0.00459
Alfa
AF:
0.00107
Hom.:
3
Bravo
AF:
0.00621

ClinVar

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

Submissions by phenotype

not provided Benign:1
Likely benign, criteria provided, single submitterclinical testingGeneDxNov 27, 2018- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
BayesDel_noAF
Benign
-0.90
CADD
Benign
2.2
DANN
Benign
0.52

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: rs111957035; hg19: chrX-110544642; API