Variant X-18603879-T-C details in Genebe, Genetics Data Aggregator

Variant summary

Our verdict is Benign. Variant got -10 ACMG points: 0P and 10B. BP4_StrongBP6_ModerateBS2

The NM_001323289.2(CDKL5):c.978-23T>C variant causes a intron change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000191 in 1,207,089 control chromosomes in the GnomAD database, with no homozygous occurrence. There are 11 hemizygotes in GnomAD. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Benign (★).

Frequency

Genomes: 𝑓 0.000045 ( 0 hom., 2 hem., cov: 23)

Exomes 𝑓: 0.000016 ( 0 hom. 9 hem. )

Consequence

CDKL5
NM_001323289.2 intron

Scores

Clinical Significance

Benign criteria provided, single submitter B:2O:1

Conservation

PhyloP100: -0.0640

Variant links:

Genes affected

CDKL5 (HGNC:11411): (cyclin dependent kinase like 5) This gene is a member of Ser/Thr protein kinase family and encodes a phosphorylated protein with protein kinase activity. Mutations in this gene have been associated with X-linked infantile spasm syndrome (ISSX), also known as X-linked West syndrome, and Rett syndrome (RTT). Alternate transcriptional splice variants have been characterized. [provided by RefSeq, Jul 2008]

CDKL5 links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Benign. Variant got -10 ACMG points.

BP4

Computational evidence support a benign effect (BayesDel_noAF=-0.88).

BP6

Variant X-18603879-T-C is Benign according to our data. Variant chrX-18603879-T-C is described in ClinVar as [Benign]. Clinvar id is 156094.Status of the report is criteria_provided_single_submitter, 1 stars.

BS2

High Hemizygotes in GnomAd4 at 2 XL gene

Transcripts

RefSeq

Gene	Transcript	HGVSc	Effect	MANE	Protein	UniProt
CDKL5	NM_001323289.2 linkuse as main transcript	c.978-23T>C	intron_variant	ENST00000623535.2	NP_001310218.1	O76039-2
CDKL5	NM_001037343.2 linkuse as main transcript	c.978-23T>C	intron_variant		NP_001032420.1	O76039-1
CDKL5	NM_003159.3 linkuse as main transcript	c.978-23T>C	intron_variant		NP_003150.1	O76039-1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris	UniProt
CDKL5	ENST00000623535.2 linkuse as main transcript	c.978-23T>C		intron_variant		1	NM_001323289.2	ENSP00000485244.1		O76039-2

Frequencies

GnomAD3 genomes

AF:

0.0000445

AC:

AN:

112236

Hom.:

Cov.:

AF XY:

0.0000582

AC XY:

AN XY:

34380

show subpopulations

Gnomad AFR

AF:

0.00

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.00

Gnomad ASJ

AF:

0.00151

Gnomad EAS

AF:

0.00

Gnomad SAS

AF:

0.00

Gnomad FIN

AF:

0.00

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.0000188

Gnomad OTH

AF:

0.00

GnomAD3 exomes

AF:

0.0000328

AC:

AN:

182732

Hom.:

AF XY:

0.0000445

AC XY:

AN XY:

67484

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.00

Gnomad ASJ exome

AF:

0.000668

Gnomad EAS exome

AF:

0.00

Gnomad SAS exome

AF:

0.0000524

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.00

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.0000164

AC:

AN:

1094853

Hom.:

Cov.:

AF XY:

0.0000250

AC XY:

AN XY:

360303

show subpopulations

Gnomad4 AFR exome

AF:

0.00

Gnomad4 AMR exome

AF:

0.00

Gnomad4 ASJ exome

AF:

0.000517

Gnomad4 EAS exome

AF:

0.00

Gnomad4 SAS exome

AF:

0.0000925

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.00000358

Gnomad4 OTH exome

AF:

0.00

GnomAD4 genome

AF:

0.0000445

AC:

AN:

112236

Hom.:

Cov.:

AF XY:

0.0000582

AC XY:

AN XY:

34380

show subpopulations

Gnomad4 AFR

AF:

0.00

Gnomad4 AMR

AF:

0.00

Gnomad4 ASJ

AF:

0.00151

Gnomad4 EAS

AF:

0.00

Gnomad4 SAS

AF:

0.00

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.0000188

Gnomad4 OTH

AF:

0.00

Bravo

AF:

0.0000189

ClinVar

Significance: Benign

Submissions summary: Benign:2Other:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

not specified

Benign:1

Benign, no assertion criteria provided

curation

RettBASE

May 09, 2014

- -

CDKL5 disorder

Benign:1

Benign, criteria provided, single submitter

curation

Centre for Population Genomics, CPG

Sep 11, 2024

This variant has been collected from RettBASE and curated to current modified ACMG/AMP criteria. Based on the classification scheme defined by the ClinGen Rett/Angelman-like Expert Panel for Rett/AS-like Disorders Specifications to the ACMG/AMP Variant Interpretation Guidelines VCEP 3.0, this variant is classified as benign. At least the following criteria are met: The allele frequency of this variant in at least one population in gnomAD is higher than the 0.03% threshold defined by the ClinGen Rett/Angelman-like Expert Panel for Rett/AS-like Disorders VCEP 3.0 (BA1). -

not provided

Other:1

not provided, flagged submission

literature only

RettBASE

- -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

BayesDel_noAF

Benign

-0.88

CADD

Benign

0.017

DANN

Benign

0.51

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.

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