Variant chrX-18579898-A-G details in Genebe, Genetics Data Aggregator

Variant summary

Our verdict is Benign. Variant got -16 ACMG points: 0P and 16B. BP4_StrongBP6_Very_StrongBS2

The NM_001323289.2(CDKL5):c.333A>G(p.Lys111=) variant causes a synonymous change. The variant allele was found at a frequency of 0.00000276 in 1,086,830 control chromosomes in the GnomAD database, with no homozygous occurrence. There are 2 hemizygotes in GnomAD. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Likely benign (★★).

Frequency

Genomes: not found (cov: 23)

Exomes 𝑓: 0.0000028 ( 0 hom. 2 hem. )

Consequence

CDKL5
NM_001323289.2 synonymous

Scores

Clinical Significance

Likely benign criteria provided, multiple submitters, no conflicts B:3

Conservation

PhyloP100: 3.93

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:

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ACMG classification

Classification made for transcript

Verdict is Benign. Variant got -16 ACMG points.

BP4

Computational evidence support a benign effect (BayesDel_noAF=-0.51).

BP6

Variant X-18579898-A-G is Benign according to our data. Variant chrX-18579898-A-G is described in ClinVar as [Likely_benign]. Clinvar id is 189536.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.

BS2

High Hemizygotes in GnomAdExome4 at 2 XL gene

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein
CDKL5	NM_001323289.2 linkuse as main transcript	c.333A>G	p.Lys111=	synonymous_variant	6/18	ENST00000623535.2	NP_001310218.1
CDKL5	NM_001037343.2 linkuse as main transcript	c.333A>G	p.Lys111=	synonymous_variant	7/22		NP_001032420.1
CDKL5	NM_003159.3 linkuse as main transcript	c.333A>G	p.Lys111=	synonymous_variant	6/21		NP_003150.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris	UniProt
CDKL5	ENST00000623535.2 linkuse as main transcript	c.333A>G	p.Lys111=	synonymous_variant	6/18	1	NM_001323289.2	ENSP00000485244	P1	O76039-2

Frequencies

GnomAD3 genomes

Cov.:

GnomAD3 exomes

AF:

0.00000546

AC:

AN:

183062

Hom.:

AF XY:

0.0000148

AC XY:

AN XY:

67636

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.00

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00

Gnomad SAS exome

AF:

0.0000525

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.00

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.00000276

AC:

AN:

1086830

Hom.:

Cov.:

AF XY:

0.00000567

AC XY:

AN XY:

353010

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:

0.0000186

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.00

Gnomad4 OTH exome

AF:

0.0000438

GnomAD4 genome

Cov.:

ClinVar

Significance: Likely benign

Submissions summary: Benign:3

Revision: criteria provided, multiple submitters, no conflicts

LINK: link

Submissions by phenotype

not specified

Benign:1

Benign, no assertion criteria provided

curation

RettBASE

May 09, 2014

Silent mutation, potential splicing changes, but inherited from unaffected father -

CDKL5 disorder

Benign:1

Likely benign, criteria provided, single submitter

curation

Centre for Population Genomics, CPG

Jul 04, 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 likely benign. At least the following criteria are met: The variant is observed in at least 2 individuals with no features of CDKL5 disorder (BS2). PMID: 23064044 , Allele frequency of this variant in at least one population in gnomAD is .004% (3 heterozygous 2 hemizigotes). Synonymous or intronic variant outside donor and acceptor splice regions where splicing prediction algorithms do not support significant splicing alteration (spliceAI score <=0.1) (BP4, BP7). -

Developmental and epileptic encephalopathy, 2;CN128785:Angelman syndrome-like

Benign:1

Likely benign, criteria provided, single submitter

clinical testing

Labcorp Genetics (formerly Invitae), Labcorp

Mar 18, 2023

- -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

BayesDel_noAF

Benign

-0.51

CADD

Benign

DANN

Benign

0.70

Splicing

Name

Calibrated prediction

Score

Prediction

SpliceAI score (max)

0.14

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