rs4825261

Variant summary

Our verdict is Benign. Variant got -20 ACMG points: 0P and 20B. BP4_StrongBP6_Very_StrongBA1

The NM_001323289.2(CDKL5):​c.283-99C>A variant causes a intron change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.314 in 781,995 control chromosomes in the GnomAD database, including 28,867 homozygotes. There are 71,175 hemizygotes in GnomAD. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Benign (★★).

Frequency

Genomes: 𝑓 0.28 ( 3433 hom., 9251 hem., cov: 23)
Exomes 𝑓: 0.32 ( 25434 hom. 61924 hem. )

Consequence

CDKL5
NM_001323289.2 intron

Scores

2

Clinical Significance

Benign criteria provided, multiple submitters, no conflicts B:4O:1

Conservation

PhyloP100: -0.739
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]

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ACMG classification

Classification made for transcript

Verdict is Benign. Variant got -20 ACMG points.

BP4
Computational evidence support a benign effect (BayesDel_noAF=-0.82).
BP6
Variant X-18579749-C-A is Benign according to our data. Variant chrX-18579749-C-A is described in ClinVar as [Benign]. Clinvar id is 156085.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.
BA1
GnomAd4 highest subpopulation (EAS) allele frequency at 95% confidence interval = 0.439 is higher than 0.05.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
CDKL5NM_001323289.2 linkuse as main transcriptc.283-99C>A intron_variant ENST00000623535.2 NP_001310218.1
CDKL5NM_001037343.2 linkuse as main transcriptc.283-99C>A intron_variant NP_001032420.1
CDKL5NM_003159.3 linkuse as main transcriptc.283-99C>A intron_variant NP_003150.1

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
CDKL5ENST00000623535.2 linkuse as main transcriptc.283-99C>A intron_variant 1 NM_001323289.2 ENSP00000485244 P1O76039-2

Frequencies

GnomAD3 genomes
AF:
0.283
AC:
31182
AN:
110051
Hom.:
3437
Cov.:
23
AF XY:
0.285
AC XY:
9237
AN XY:
32391
show subpopulations
Gnomad AFR
AF:
0.165
Gnomad AMI
AF:
0.266
Gnomad AMR
AF:
0.425
Gnomad ASJ
AF:
0.410
Gnomad EAS
AF:
0.459
Gnomad SAS
AF:
0.411
Gnomad FIN
AF:
0.260
Gnomad MID
AF:
0.285
Gnomad NFE
AF:
0.302
Gnomad OTH
AF:
0.283
GnomAD4 exome
AF:
0.319
AC:
214153
AN:
671895
Hom.:
25434
AF XY:
0.337
AC XY:
61924
AN XY:
183723
show subpopulations
Gnomad4 AFR exome
AF:
0.152
Gnomad4 AMR exome
AF:
0.523
Gnomad4 ASJ exome
AF:
0.392
Gnomad4 EAS exome
AF:
0.465
Gnomad4 SAS exome
AF:
0.413
Gnomad4 FIN exome
AF:
0.270
Gnomad4 NFE exome
AF:
0.298
Gnomad4 OTH exome
AF:
0.315
GnomAD4 genome
AF:
0.283
AC:
31182
AN:
110100
Hom.:
3433
Cov.:
23
AF XY:
0.285
AC XY:
9251
AN XY:
32450
show subpopulations
Gnomad4 AFR
AF:
0.165
Gnomad4 AMR
AF:
0.426
Gnomad4 ASJ
AF:
0.410
Gnomad4 EAS
AF:
0.458
Gnomad4 SAS
AF:
0.414
Gnomad4 FIN
AF:
0.260
Gnomad4 NFE
AF:
0.302
Gnomad4 OTH
AF:
0.283
Alfa
AF:
0.168
Hom.:
897
Bravo
AF:
0.298

ClinVar

Significance: Benign
Submissions summary: Benign:4Other:1
Revision: criteria provided, multiple submitters, no conflicts
LINK: link

Submissions by phenotype

not provided Benign:2Other:1
Benign, criteria provided, single submitternot providedBreakthrough Genomics, Breakthrough Genomics-- -
not provided, flagged submissionliterature onlyRettBASE-- -
Benign, criteria provided, single submitterclinical testingGeneDxJun 14, 2018This 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. -
not specified Benign:1
Benign, no assertion criteria providedcurationRettBASEMar 13, 2014Common SNP -
CDKL5 disorder Benign:1
Benign, criteria provided, single submittercurationCentre for Population Genomics, CPGJul 12, 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 benign. At least the following criteria are met: The allele frequency of this variant in at least one population in gnomAD v4 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
-0.82
CADD
Benign
0.074
DANN
Benign
0.56

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: rs4825261; hg19: chrX-18597869; COSMIC: COSV66110067; COSMIC: COSV66110067; API