X-18642024-A-C

Variant summary

Our verdict is Likely pathogenic. Variant got 6 ACMG points: 6P and 0B. PM2PP3_Strong

The NM_001037343.2(CDKL5):​c.2714-3983A>C variant causes a intron change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.000000911 in 1,097,857 control chromosomes in the GnomAD database, with no homozygous occurrence. There are no hemizygote samples in GnomAD. In-silico tool predicts a pathogenic outcome for this variant. Variant has been reported in ClinVar as not provided (no stars).

Frequency

Genomes: not found (cov: 23)
Exomes 𝑓: 9.1e-7 ( 0 hom. 0 hem. )

Consequence

CDKL5
NM_001037343.2 intron

Scores

12
4
1

Clinical Significance

not provided no classification provided O:1

Conservation

PhyloP100: 8.95
Variant links:
Genes affected
RS1 (HGNC:10457): (retinoschisin 1) This gene encodes an extracellular protein that plays a crucial role in the cellular organization of the retina. The encoded protein is assembled and secreted from photoreceptors and bipolar cells as a homo-oligomeric protein complex. Mutations in this gene are responsible for X-linked retinoschisis, a common, early-onset macular degeneration in males that results in a splitting of the inner layers of the retina and severe loss in vision. [provided by RefSeq, Oct 2008]
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 Likely_pathogenic. Variant got 6 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
PP3
MetaRNN computational evidence supports a deleterious effect, 0.995

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
RS1NM_000330.4 linkc.655T>G p.Cys219Gly missense_variant 6/6 ENST00000379984.4 NP_000321.1 O15537
RS1XM_047442337.1 linkc.559T>G p.Cys187Gly missense_variant 4/4 XP_047298293.1
CDKL5NM_001037343.2 linkc.2714-3983A>C intron_variant NP_001032420.1 O76039-1
CDKL5NM_003159.3 linkc.2714-3983A>C intron_variant NP_003150.1 O76039-1

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
RS1ENST00000379984.4 linkc.655T>G p.Cys219Gly missense_variant 6/61 NM_000330.4 ENSP00000369320.3 O15537
CDKL5ENST00000379989.6 linkc.2714-3983A>C intron_variant 1 ENSP00000369325.3 O76039-1
CDKL5ENST00000379996.7 linkc.2714-3983A>C intron_variant 1 ENSP00000369332.3 O76039-1
RS1ENST00000476595.1 linkn.1146T>G non_coding_transcript_exon_variant 5/51

Frequencies

GnomAD3 genomes
Cov.:
23
GnomAD3 exomes
AF:
0.00000547
AC:
1
AN:
182926
Hom.:
0
AF XY:
0.00
AC XY:
0
AN XY:
67540
show subpopulations
Gnomad AFR exome
AF:
0.0000762
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:
0.00
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
9.11e-7
AC:
1
AN:
1097857
Hom.:
0
Cov.:
31
AF XY:
0.00
AC XY:
0
AN XY:
363329
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
Cov.:
23

ClinVar

Significance: not provided
Submissions summary: Other:1
Revision: no classification provided
LINK: link

Submissions by phenotype

not provided Other:1
not provided, no classification providedliterature onlyRetina International-- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Pathogenic
0.97
BayesDel_addAF
Pathogenic
0.58
D
BayesDel_noAF
Pathogenic
0.78
CADD
Pathogenic
28
DANN
Uncertain
0.98
DEOGEN2
Pathogenic
0.88
D
FATHMM_MKL
Pathogenic
0.99
D
LIST_S2
Uncertain
0.87
D
M_CAP
Pathogenic
0.98
D
MetaRNN
Pathogenic
1.0
D
MetaSVM
Pathogenic
1.0
D
MutationAssessor
Pathogenic
4.2
H
PrimateAI
Uncertain
0.77
T
PROVEAN
Pathogenic
-9.0
D
REVEL
Pathogenic
0.98
Sift
Uncertain
0.0050
D
Sift4G
Pathogenic
0.0
D
Polyphen
1.0
D
Vest4
0.98
MutPred
0.96
Gain of catalytic residue at C219 (P = 0.0038);
MVP
1.0
MPC
1.8
ClinPred
0.98
D
GERP RS
5.6
Varity_R
0.98
gMVP
1.0

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: rs281865369; hg19: chrX-18660144; API