rs759074946

Variant summary

Our verdict is Likely benign. Variant got -4 ACMG points: 2P and 6B. PP2PP3BP6_ModerateBS2

The NM_001367721.1(CASK):ā€‹c.2227G>Cā€‹(p.Val743Leu) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.0000261 in 1,186,810 control chromosomes in the GnomAD database, with no homozygous occurrence. There are 10 hemizygotes in GnomAD. In-silico tool predicts a pathogenic outcome for this variant. Variant has been reported in ClinVar as Benign (ā˜…).

Frequency

Genomes: š‘“ 0.0000089 ( 0 hom., 0 hem., cov: 23)
Exomes š‘“: 0.000028 ( 0 hom. 10 hem. )

Consequence

CASK
NM_001367721.1 missense

Scores

7
8
2

Clinical Significance

Benign criteria provided, single submitter B:1

Conservation

PhyloP100: 7.57
Variant links:
Genes affected
CASK (HGNC:1497): (calcium/calmodulin dependent serine protein kinase) This gene encodes a calcium/calmodulin-dependent serine protein kinase. The encoded protein is a MAGUK (membrane-associated guanylate kinase) protein family member. These proteins are scaffold proteins and the encoded protein is located at synapses in the brain. Mutations in this gene are associated with FG syndrome 4, intellectual disability and microcephaly with pontine and cerebellar hypoplasia, and a form of X-linked intellectual disability. Multiple transcript variants encoding different isoforms have been found for this gene. [provided by RefSeq, Jul 2017]

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Likely_benign. Variant got -4 ACMG points.

PP2
Missense variant in gene, where missense usually causes diseases (based on misZ statistic), CASK. . Gene score misZ 4.2502 (greater than the threshold 3.09). GenCC has associacion of gene with syndromic X-linked intellectual disability Najm type, X-linked syndromic intellectual disability, developmental and epileptic encephalopathy, FG syndrome 4.
PP3
MetaRNN computational evidence supports a deleterious effect, 0.761
BP6
Variant X-41534902-C-G is Benign according to our data. Variant chrX-41534902-C-G is described in ClinVar as [Benign]. Clinvar id is 580046.Status of the report is criteria_provided_single_submitter, 1 stars.
BS2
High Hemizygotes in GnomAdExome4 at 10 XL gene

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
CASKNM_001367721.1 linkuse as main transcriptc.2227G>C p.Val743Leu missense_variant 23/27 ENST00000378163.7

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
CASKENST00000378163.7 linkuse as main transcriptc.2227G>C p.Val743Leu missense_variant 23/275 NM_001367721.1 A1O14936-1

Frequencies

GnomAD3 genomes
AF:
0.00000890
AC:
1
AN:
112323
Hom.:
0
Cov.:
23
AF XY:
0.00
AC XY:
0
AN XY:
34471
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:
0.00
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.0000188
Gnomad OTH
AF:
0.00
GnomAD3 exomes
AF:
0.0000166
AC:
3
AN:
180859
Hom.:
0
AF XY:
0.00
AC XY:
0
AN XY:
65457
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 SAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.0000374
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.0000279
AC:
30
AN:
1074487
Hom.:
0
Cov.:
27
AF XY:
0.0000292
AC XY:
10
AN XY:
341995
show subpopulations
Gnomad4 AFR exome
AF:
0.00
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:
0.0000329
Gnomad4 OTH exome
AF:
0.0000662
GnomAD4 genome
AF:
0.00000890
AC:
1
AN:
112323
Hom.:
0
Cov.:
23
AF XY:
0.00
AC XY:
0
AN XY:
34471
show subpopulations
Gnomad4 AFR
AF:
0.00
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:
0.0000188
Gnomad4 OTH
AF:
0.00
Alfa
AF:
0.0000434
Hom.:
0
Bravo
AF:
0.0000189
ExAC
AF:
0.0000494
AC:
6

ClinVar

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

Submissions by phenotype

Intellectual disability, CASK-related, X-linked Benign:1
Benign, criteria provided, single submitterclinical testingInvitaeDec 12, 2022- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Pathogenic
0.96
BayesDel_addAF
Uncertain
0.061
T
BayesDel_noAF
Uncertain
0.030
CADD
Pathogenic
26
DANN
Uncertain
1.0
DEOGEN2
Benign
0.30
.;.;.;.;.;.;.;T;.;.;.;.;.;.;.
FATHMM_MKL
Pathogenic
0.99
D
LIST_S2
Pathogenic
0.99
D;D;D;D;D;D;D;D;D;D;D;D;D;D;D
M_CAP
Pathogenic
0.38
D
MetaRNN
Pathogenic
0.76
D;D;D;D;D;D;D;D;D;D;D;D;D;D;D
MetaSVM
Uncertain
0.16
D
MutationAssessor
Pathogenic
3.5
.;.;.;.;.;.;.;M;.;.;.;.;.;.;.
MutationTaster
Benign
1.0
D;D;D;D;D;D;D
PrimateAI
Pathogenic
0.84
D
PROVEAN
Uncertain
-2.8
.;.;.;.;.;D;.;D;.;.;.;.;.;.;.
REVEL
Uncertain
0.39
Sift
Uncertain
0.0010
.;.;.;.;.;D;.;D;.;.;.;.;.;.;.
Sift4G
Uncertain
0.0040
.;.;.;.;.;D;.;D;.;.;.;.;.;.;.
Polyphen
1.0
D;B;.;D;.;D;.;D;.;.;.;.;.;.;.
Vest4
0.76
MutPred
0.61
.;.;.;.;.;.;.;Loss of methylation at K740 (P = 0.0669);.;.;.;.;.;.;.;
MVP
0.88
MPC
2.1
ClinPred
0.87
D
GERP RS
5.4
Varity_R
0.93
gMVP
0.91

Splicing

Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
0.010
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: rs759074946; hg19: chrX-41394155; API