Variant X-18425593-C-G details in Genebe, Genetics Data Aggregator

Variant summary

Our verdict is Benign. Variant got -18 ACMG points: 0P and 18B. BP4_ModerateBP6_Very_StrongBS1BS2

The ENST00000379996(CDKL5):c.-265C>G variant causes a 5 prime UTR change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00218 in 112,504 control chromosomes in the GnomAD database, with no homozygous occurrence. There are 69 hemizygotes in GnomAD. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Benign (★★).

Frequency

Genomes: 𝑓 0.0022 ( 0 hom., 69 hem., cov: 25)

Exomes 𝑓: 0.0 ( 0 hom. 0 hem. )

Failed GnomAD Quality Control

Consequence

CDKL5
ENST00000379996 5_prime_UTR

Scores

Clinical Significance

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

Conservation

PhyloP100: -0.339

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:

(HGNC:):

links:

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ACMG classification

Classification made for transcript

Verdict is Benign. Variant got -18 ACMG points.

BP4

Computational evidence support a benign effect (BayesDel_noAF=-0.39).

BP6

Variant X-18425593-C-G is Benign according to our data. Variant chrX-18425593-C-G is described in ClinVar as [Benign]. Clinvar id is 158174.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.

BS1

Variant frequency is greater than expected in population nfe. gnomad4 allele frequency = 0.00218 (245/112504) while in subpopulation NFE AF= 0.00363 (193/53156). AF 95% confidence interval is 0.00321. There are 0 homozygotes in gnomad4. There are 69 alleles in male gnomad4 subpopulation. Median coverage is 25. This position pass quality control queck.

BS2

High Hemizygotes in GnomAd4 at 69 XL gene

Transcripts

RefSeq

Gene	Transcript	HGVSc	Effect	MANE	Protein	UniProt
	use as main transcript	n.18425593C>G	intergenic_region
CDKL5	NM_001323289.2 linkuse as main transcript	c.-265C>G	upstream_gene_variant	ENST00000623535.2	NP_001310218.1	O76039-2
CDKL5	NM_003159.3 linkuse as main transcript	c.-265C>G	upstream_gene_variant		NP_003150.1	O76039-1

Ensembl

Gene	Transcript	HGVSc	Effect	#exon/exons	TSL	MANE	Protein	UniProt
CDKL5	ENST00000379996 linkuse as main transcript	c.-265C>G	5_prime_UTR_variant	1/21	1		ENSP00000369332.3	O76039-1
CDKL5	ENST00000623535.2 linkuse as main transcript	c.-265C>G	upstream_gene_variant		1	NM_001323289.2	ENSP00000485244.1	O76039-2
CDKL5	ENST00000674046.1 linkuse as main transcript	c.-265C>G	upstream_gene_variant				ENSP00000501174.1	A0A669KBC2

Frequencies

GnomAD3 genomes

AF:

0.00219

AC:

246

AN:

112454

Hom.:

Cov.:

AF XY:

0.00199

AC XY:

AN XY:

34634

show subpopulations

Gnomad AFR

AF:

0.000516

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.00242

Gnomad ASJ

AF:

0.00

Gnomad EAS

AF:

0.00

Gnomad SAS

AF:

0.00

Gnomad FIN

AF:

0.000162

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.00365

Gnomad OTH

AF:

0.00592

GnomAD4 exome

Data not reliable, filtered out with message: AC0

AF:

0.00

AC:

AN:

Hom.:

Cov.:

AF XY:

0.00

AC XY:

AN XY:

Gnomad4 AFR exome

AF:

0.00

Gnomad4 AMR exome

AF:

0.00

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.00

Gnomad4 OTH exome

AF:

0.00

GnomAD4 genome

AF:

0.00218

AC:

245

AN:

112504

Hom.:

Cov.:

AF XY:

0.00199

AC XY:

AN XY:

34694

show subpopulations

Gnomad4 AFR

AF:

0.000515

Gnomad4 AMR

AF:

0.00242

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.00

Gnomad4 SAS

AF:

0.00

Gnomad4 FIN

AF:

0.000162

Gnomad4 NFE

AF:

0.00363

Gnomad4 OTH

AF:

0.00585

Alfa

AF:

0.00141

Hom.:

Bravo

AF:

0.00244

ClinVar

Significance: Benign

Submissions summary: Benign:3

Revision: criteria provided, multiple submitters, no conflicts

LINK: link

Submissions by phenotype

not specified

Benign:2

Benign, no assertion criteria provided	curation	RettBASE	May 09, 2014	Benign variation, found in normal male controls -
Benign, criteria provided, single submitter	clinical testing	Genetic Services Laboratory, University of Chicago	Feb 08, 2013	- -

CDKL5 disorder

Benign:1

Benign, criteria provided, single submitter

curation

Centre for Population Genomics, CPG

Jun 28, 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 v3 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). -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

BayesDel_noAF

Benign

-0.39

CADD

Benign

DANN

Benign

0.90

Splicing

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