rs786204958

Variant summary

Our verdict is Benign. Variant got -11 ACMG points: 2P and 13B. PM2BP4_StrongBP6_Very_StrongBP7

The ENST00000623535.2(CDKL5):ā€‹c.573C>Gā€‹(p.Ser191=) variant causes a synonymous change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000165 in 1,208,497 control chromosomes in the GnomAD database, with no homozygous occurrence. There are no hemizygote samples in GnomAD. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Likely benign (ā˜…ā˜…). Synonymous variant affecting the same amino acid position (i.e. S191S) has been classified as Benign.

Frequency

Genomes: š‘“ 0.0000090 ( 0 hom., 0 hem., cov: 23)
Exomes š‘“: 9.1e-7 ( 0 hom. 0 hem. )

Consequence

CDKL5
ENST00000623535.2 synonymous

Scores

2

Clinical Significance

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

Conservation

PhyloP100: -0.262
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]

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Benign. Variant got -11 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
BP4
Computational evidence support a benign effect (BayesDel_noAF=-0.52).
BP6
Variant X-18587972-C-G is Benign according to our data. Variant chrX-18587972-C-G is described in ClinVar as [Likely_benign]. Clinvar id is 189540.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.
BP7
Synonymous conserved (PhyloP=-0.262 with no splicing effect.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
CDKL5NM_001323289.2 linkuse as main transcriptc.573C>G p.Ser191= synonymous_variant 9/18 ENST00000623535.2 NP_001310218.1
CDKL5NM_001037343.2 linkuse as main transcriptc.573C>G p.Ser191= synonymous_variant 10/22 NP_001032420.1
CDKL5NM_003159.3 linkuse as main transcriptc.573C>G p.Ser191= synonymous_variant 9/21 NP_003150.1

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
CDKL5ENST00000623535.2 linkuse as main transcriptc.573C>G p.Ser191= synonymous_variant 9/181 NM_001323289.2 ENSP00000485244 P1O76039-2

Frequencies

GnomAD3 genomes
AF:
0.00000895
AC:
1
AN:
111722
Hom.:
0
Cov.:
23
AF XY:
0.00
AC XY:
0
AN XY:
33910
show subpopulations
Gnomad AFR
AF:
0.0000325
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:
0.00
Gnomad OTH
AF:
0.00
GnomAD4 exome
AF:
9.12e-7
AC:
1
AN:
1096775
Hom.:
0
Cov.:
29
AF XY:
0.00
AC XY:
0
AN XY:
362217
show subpopulations
Gnomad4 AFR exome
AF:
0.0000379
Gnomad4 AMR exome
AF:
0.00
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:
0.00
Gnomad4 OTH exome
AF:
0.00
GnomAD4 genome
AF:
0.00000895
AC:
1
AN:
111722
Hom.:
0
Cov.:
23
AF XY:
0.00
AC XY:
0
AN XY:
33910
show subpopulations
Gnomad4 AFR
AF:
0.0000325
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:
0.00
Gnomad4 OTH
AF:
0.00
Bravo
AF:
0.00000756

ClinVar

Significance: Benign/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 providedcurationRettBASEMay 09, 2014- -
CDKL5 disorder Benign:1
Likely benign, criteria provided, single submittercurationCentre for Population Genomics, CPGJul 11, 2024This 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 , present in 5 individuals in gnomAD v4, however the allele frequency of this variant is in all populations < 0.008%. 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
Benign, criteria provided, single submitterclinical testingLabcorp Genetics (formerly Invitae), LabcorpDec 04, 2021- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
BayesDel_noAF
Benign
-0.52
CADD
Benign
0.054
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: rs786204958; hg19: chrX-18606092; API