rs374030184

Variant summary

Our verdict is Benign. Variant got -10 ACMG points: 0P and 10B. BP4_StrongBP6_ModerateBS2

The NM_001323289.2(CDKL5):​c.464-9A>G variant causes a splice polypyrimidine tract, intron change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000747 in 1,164,119 control chromosomes in the GnomAD database, with no homozygous occurrence. There are 26 hemizygotes in GnomAD. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Benign (★).

Frequency

Genomes: 𝑓 0.00013 ( 0 hom., 5 hem., cov: 23)
Exomes 𝑓: 0.000069 ( 0 hom. 21 hem. )

Consequence

CDKL5
NM_001323289.2 splice_polypyrimidine_tract, intron

Scores

2
Splicing: ADA: 0.000006842
2

Clinical Significance

Benign criteria provided, single submitter B:1

Conservation

PhyloP100: -0.911
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 -10 ACMG points.

BP4
Computational evidence support a benign effect (BayesDel_noAF=-0.86).
BP6
Variant X-18584254-A-G is Benign according to our data. Variant chrX-18584254-A-G is described in ClinVar as [Benign]. Clinvar id is 533399.Status of the report is criteria_provided_single_submitter, 1 stars. Variant chrX-18584254-A-G is described in Lovd as [Likely_benign].
BS2
High Hemizygotes in GnomAd4 at 5 XL gene

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
CDKL5NM_001323289.2 linkuse as main transcriptc.464-9A>G splice_polypyrimidine_tract_variant, intron_variant ENST00000623535.2 NP_001310218.1
CDKL5NM_001037343.2 linkuse as main transcriptc.464-9A>G splice_polypyrimidine_tract_variant, intron_variant NP_001032420.1
CDKL5NM_003159.3 linkuse as main transcriptc.464-9A>G splice_polypyrimidine_tract_variant, intron_variant NP_003150.1

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
CDKL5ENST00000623535.2 linkuse as main transcriptc.464-9A>G splice_polypyrimidine_tract_variant, intron_variant 1 NM_001323289.2 ENSP00000485244 P1O76039-2

Frequencies

GnomAD3 genomes
AF:
0.000125
AC:
14
AN:
111945
Hom.:
0
Cov.:
23
AF XY:
0.000147
AC XY:
5
AN XY:
34123
show subpopulations
Gnomad AFR
AF:
0.000162
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:
0.000169
Gnomad OTH
AF:
0.00
GnomAD3 exomes
AF:
0.0000983
AC:
18
AN:
183096
Hom.:
0
AF XY:
0.000118
AC XY:
8
AN XY:
67688
show subpopulations
Gnomad AFR exome
AF:
0.000228
Gnomad AMR exome
AF:
0.0000365
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad SAS exome
AF:
0.0000524
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.000159
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.0000694
AC:
73
AN:
1052174
Hom.:
0
Cov.:
25
AF XY:
0.0000641
AC XY:
21
AN XY:
327536
show subpopulations
Gnomad4 AFR exome
AF:
0.0000783
Gnomad4 AMR exome
AF:
0.0000285
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.0000666
Gnomad4 SAS exome
AF:
0.0000565
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.0000762
Gnomad4 OTH exome
AF:
0.0000674
GnomAD4 genome
AF:
0.000125
AC:
14
AN:
111945
Hom.:
0
Cov.:
23
AF XY:
0.000147
AC XY:
5
AN XY:
34123
show subpopulations
Gnomad4 AFR
AF:
0.000162
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:
0.000169
Gnomad4 OTH
AF:
0.00
Alfa
AF:
0.000182
Hom.:
2
Bravo
AF:
0.000166
EpiCase
AF:
0.000218
EpiControl
AF:
0.000475

ClinVar

Significance: Benign
Submissions summary: Benign:1
Revision: criteria provided, single submitter
LINK: link

Submissions by phenotype

Developmental and epileptic encephalopathy, 2;CN128785:Angelman syndrome-like Benign:1
Benign, criteria provided, single submitterclinical testingLabcorp Genetics (formerly Invitae), LabcorpJan 15, 2024- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
BayesDel_noAF
Benign
-0.86
CADD
Benign
0.0090
DANN
Benign
0.49

Splicing

Name
Calibrated prediction
Score
Prediction
dbscSNV1_ADA
Benign
0.0000068
dbscSNV1_RF
Benign
0.0060
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: rs374030184; hg19: chrX-18602374; API