rs747554139

Variant summary

Our verdict is Likely benign. The variant received -2 ACMG points: 2P and 4B. PM2BP4_Strong

The NM_001323289.2(CDKL5):​c.2215C>G​(p.Leu739Val) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000904 in 110,665 control chromosomes in the GnomAD database, with no homozygous occurrence. There are 1 hemizygotes in GnomAD. In-silico tool predicts a benign outcome for this variant. 14/21 in silico tools predict a benign outcome for this variant. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar. Synonymous variant affecting the same amino acid position (i.e. L739L) has been classified as Likely benign.

Frequency

Genomes: 𝑓 0.0000090 ( 0 hom., 1 hem., cov: 22)
Exomes 𝑓: 9.2e-7 ( 0 hom. 1 hem. )
Failed GnomAD Quality Control

Consequence

CDKL5
NM_001323289.2 missense

Scores

2
15

Clinical Significance

Not reported in ClinVar

Conservation

PhyloP100: 0.0650

Publications

1 publications found
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 Gene-Disease associations (from GenCC):
  • CDKL5 disorder
    Inheritance: XL Classification: DEFINITIVE Submitted by: ClinGen
  • developmental and epileptic encephalopathy, 2
    Inheritance: XL Classification: DEFINITIVE, STRONG, SUPPORTIVE Submitted by: Orphanet, G2P, Labcorp Genetics (formerly Invitae), Ambry Genetics
  • atypical Rett syndrome
    Inheritance: AD Classification: SUPPORTIVE Submitted by: Orphanet
  • genetic developmental and epileptic encephalopathy
    Inheritance: AD Classification: SUPPORTIVE Submitted by: Orphanet
  • infantile spasms
    Inheritance: AD Classification: SUPPORTIVE Submitted by: Orphanet
  • precocious puberty
    Inheritance: XL Classification: LIMITED Submitted by: Ambry Genetics

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Likely_benign. The variant received -2 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
BP4
Computational evidence support a benign effect (MetaRNN=0.045918316).

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
CDKL5NM_001323289.2 linkc.2215C>G p.Leu739Val missense_variant Exon 15 of 18 ENST00000623535.2 NP_001310218.1 O76039-2
CDKL5NM_001037343.2 linkc.2215C>G p.Leu739Val missense_variant Exon 16 of 22 NP_001032420.1 O76039-1
CDKL5NM_003159.3 linkc.2215C>G p.Leu739Val missense_variant Exon 15 of 21 NP_003150.1 O76039-1

Ensembl

Gene Transcript HGVSc HGVSp Effect Exon rank TSL MANE Protein Appris UniProt
CDKL5ENST00000623535.2 linkc.2215C>G p.Leu739Val missense_variant Exon 15 of 18 1 NM_001323289.2 ENSP00000485244.1 O76039-2

Frequencies

GnomAD3 genomes
AF:
0.00000904
AC:
1
AN:
110628
Hom.:
0
Cov.:
22
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:
0.000384
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.00
Gnomad OTH
AF:
0.00
GnomAD2 exomes
AF:
0.00000545
AC:
1
AN:
183443
AF XY:
0.0000147
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 FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.00
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
Data not reliable, filtered out with message: AS_VQSR
AF:
9.22e-7
AC:
1
AN:
1084991
Hom.:
0
Cov.:
29
AF XY:
0.00000284
AC XY:
1
AN XY:
352223
show subpopulations
African (AFR)
AF:
0.00
AC:
0
AN:
26113
American (AMR)
AF:
0.00
AC:
0
AN:
34897
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
19008
East Asian (EAS)
AF:
0.00
AC:
0
AN:
29493
South Asian (SAS)
AF:
0.0000186
AC:
1
AN:
53872
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
39599
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
4063
European-Non Finnish (NFE)
AF:
0.00
AC:
0
AN:
832576
Other (OTH)
AF:
0.00
AC:
0
AN:
45370
GnomAD4 genome
AF:
0.00000904
AC:
1
AN:
110665
Hom.:
0
Cov.:
22
AF XY:
0.0000304
AC XY:
1
AN XY:
32939
show subpopulations
African (AFR)
AF:
0.00
AC:
0
AN:
30448
American (AMR)
AF:
0.00
AC:
0
AN:
10373
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
2632
East Asian (EAS)
AF:
0.00
AC:
0
AN:
3540
South Asian (SAS)
AF:
0.000387
AC:
1
AN:
2587
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
5722
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
214
European-Non Finnish (NFE)
AF:
0.00
AC:
0
AN:
52965
Other (OTH)
AF:
0.00
AC:
0
AN:
1499
ExAC
AF:
0.0000165
AC:
2

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.060
BayesDel_addAF
Benign
-0.39
T
BayesDel_noAF
Benign
-0.65
CADD
Benign
11
DANN
Uncertain
0.99
DEOGEN2
Benign
0.022
T;T;T;.;.
FATHMM_MKL
Benign
0.29
N
LIST_S2
Benign
0.78
.;T;T;T;T
M_CAP
Benign
0.050
D
MetaRNN
Benign
0.046
T;T;T;T;T
MetaSVM
Benign
-0.97
T
MutationAssessor
Benign
1.1
L;.;L;.;L
PhyloP100
0.065
PrimateAI
Uncertain
0.66
T
PROVEAN
Benign
-0.34
N;.;N;.;.
REVEL
Benign
0.11
Sift
Benign
0.27
T;.;T;.;.
Sift4G
Benign
0.36
T;.;T;T;T
Polyphen
0.21
B;.;B;.;.
Vest4
0.13
MutPred
0.084
Gain of sheet (P = 0.0827);Gain of sheet (P = 0.0827);Gain of sheet (P = 0.0827);Gain of sheet (P = 0.0827);Gain of sheet (P = 0.0827);
MVP
0.57
MPC
0.58
ClinPred
0.17
T
GERP RS
4.2
Varity_R
0.14
gMVP
0.13
Mutation Taster
=100/0
polymorphism

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

Other links and lift over

dbSNP: rs747554139; hg19: chrX-18631334; COSMIC: COSV105324255; API