rs756537286

Positions:

chrX-18598586-A-G

Variant summary

Our verdict is Benign. Variant got -13 ACMG points: 0P and 13B. BP4BP6_Very_StrongBS2

The NM_001323289.2(CDKL5):c.950A>G(p.His317Arg) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.000115 in 1,208,979 control chromosomes in the GnomAD database, with no homozygous occurrence. There are 37 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 0.000045 ( 0 hom., 1 hem., cov: 23)

Exomes 𝑓: 0.00012 ( 0 hom. 36 hem. )

Consequence

CDKL5
NM_001323289.2 missense

Scores

Clinical Significance

Benign/Likely benign criteria provided, multiple submitters, no conflicts B:2

Conservation

PhyloP100: 8.37

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 -13 ACMG points.

BP4

Computational evidence support a benign effect (MetaRNN=0.39019722).

BP6

Variant X-18598586-A-G is Benign according to our data. Variant chrX-18598586-A-G is described in ClinVar as [Likely_benign]. Clinvar id is 420833.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.

BS2

High Hemizygotes in GnomAdExome4 at 36 XL gene

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein
CDKL5	NM_001323289.2 linkuse as main transcript	c.950A>G	p.His317Arg	missense_variant	11/18	ENST00000623535.2	NP_001310218.1
CDKL5	NM_001037343.2 linkuse as main transcript	c.950A>G	p.His317Arg	missense_variant	12/22		NP_001032420.1
CDKL5	NM_003159.3 linkuse as main transcript	c.950A>G	p.His317Arg	missense_variant	11/21		NP_003150.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris	UniProt
CDKL5	ENST00000623535.2 linkuse as main transcript	c.950A>G	p.His317Arg	missense_variant	11/18	1	NM_001323289.2	ENSP00000485244	P1	O76039-2

Frequencies

GnomAD3 genomes

AF:

0.0000446

AC:

AN:

112136

Hom.:

Cov.:

AF XY:

0.0000292

AC XY:

AN XY:

34288

show subpopulations

Gnomad AFR

AF:

0.00

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.00

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:

0.0000939

Gnomad OTH

AF:

0.00

GnomAD3 exomes

AF:

0.0000218

AC:

AN:

183326

Hom.:

AF XY:

0.00

AC XY:

AN XY:

67822

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:

0.00

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.0000489

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.000122

AC:

134

AN:

1096843

Hom.:

Cov.:

AF XY:

0.0000994

AC XY:

AN XY:

362265

show subpopulations

Gnomad4 AFR exome

AF:

0.00

Gnomad4 AMR exome

AF:

0.00

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.0000331

Gnomad4 SAS exome

AF:

0.00

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.000157

Gnomad4 OTH exome

AF:

0.0000217

GnomAD4 genome

AF:

0.0000446

AC:

AN:

112136

Hom.:

Cov.:

AF XY:

0.0000292

AC XY:

AN XY:

34288

show subpopulations

Gnomad4 AFR

AF:

0.00

Gnomad4 AMR

AF:

0.00

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.00

Gnomad4 SAS

AF:

0.00

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.0000939

Gnomad4 OTH

AF:

0.00

Alfa

AF:

0.0000508

Hom.:

Bravo

AF:

0.0000453

ExAC

AF:

0.0000165

AC:

EpiCase

AF:

0.000109

EpiControl

AF:

0.0000593

ClinVar

Significance: Benign/Likely benign

Submissions summary: Benign:2

Revision: criteria provided, multiple submitters, no conflicts

LINK: link

Submissions by phenotype

not specified

Benign:1

Likely benign, criteria provided, single submitter

clinical testing

GeneDx

Aug 16, 2017

This variant is considered likely benign or benign based on one or more of the following criteria: it is a conservative change, it occurs at a poorly conserved position in the protein, it is predicted to be benign by multiple in silico algorithms, and/or has population frequency not consistent with disease. -

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

Benign:1

Benign, criteria provided, single submitter

clinical testing

Labcorp Genetics (formerly Invitae), Labcorp

Dec 21, 2023

- -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Uncertain

0.41

BayesDel_addAF

Uncertain

0.088

BayesDel_noAF

Uncertain

0.030

CADD

Uncertain

DANN

Uncertain

1.0

DEOGEN2

Benign

0.065

T;T;.;T;.;.

FATHMM_MKL

Pathogenic

0.99

LIST_S2

Benign

0.85

.;D;D;T;T;T

M_CAP

Pathogenic

0.73

MetaRNN

Benign

0.39

T;T;T;T;T;T

MetaSVM

Benign

-0.36

MutationAssessor

Uncertain

2.3

M;.;.;M;.;M

MutationTaster

Benign

1.0

D;D

PrimateAI

Uncertain

0.72

PROVEAN

Benign

-1.8

N;.;.;N;.;.

REVEL

Uncertain

0.38

Sift

Uncertain

0.022

D;.;.;D;.;.

Sift4G

Benign

0.23

T;.;.;T;T;T

Polyphen

1.0

D;.;.;D;.;.

Vest4

0.73

MutPred

0.26

Gain of MoRF binding (P = 0.0143);Gain of MoRF binding (P = 0.0143);Gain of MoRF binding (P = 0.0143);Gain of MoRF binding (P = 0.0143);Gain of MoRF binding (P = 0.0143);Gain of MoRF binding (P = 0.0143);

MVP

0.86

MPC

0.57

ClinPred

0.25

GERP RS

5.6

Varity_R

0.55

gMVP

0.43

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