X-41520521-T-C

Variant summary

Our verdict is Likely benign. Variant got -3 ACMG points: 1P and 4B. PP2BP4_ModerateBP6_Moderate

The NM_001367721.1(CASK):ā€‹c.2680A>Gā€‹(p.Ile894Val) variant causes a missense change. The variant allele was found at a frequency of 0.00000549 in 1,092,490 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. Variant has been reported in ClinVar as Likely benign (ā˜…).

Frequency

Genomes: not found (cov: 23)
Exomes š‘“: 0.0000055 ( 0 hom. 1 hem. )

Consequence

CASK
NM_001367721.1 missense

Scores

1
5
11

Clinical Significance

Likely benign criteria provided, single submitter B:1

Conservation

PhyloP100: 5.95
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]
CASK-AS1 (HGNC:40126): (CASK antisense RNA 1)

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Likely_benign. Variant got -3 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.
BP4
Computational evidence support a benign effect (MetaRNN=0.16298926).
BP6
Variant X-41520521-T-C is Benign according to our data. Variant chrX-41520521-T-C is described in ClinVar as [Likely_benign]. Clinvar id is 662517.Status of the report is criteria_provided_single_submitter, 1 stars.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
CASKNM_001367721.1 linkuse as main transcriptc.2680A>G p.Ile894Val missense_variant 27/27 ENST00000378163.7

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
CASKENST00000378163.7 linkuse as main transcriptc.2680A>G p.Ile894Val missense_variant 27/275 NM_001367721.1 A1O14936-1
CASK-AS1ENST00000451126.1 linkuse as main transcriptn.331+155T>C intron_variant, non_coding_transcript_variant 2

Frequencies

GnomAD3 genomes
Cov.:
23
GnomAD3 exomes
AF:
0.00000547
AC:
1
AN:
182835
Hom.:
0
AF XY:
0.00
AC XY:
0
AN XY:
67355
show subpopulations
Gnomad AFR exome
AF:
0.0000761
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:
0.00000549
AC:
6
AN:
1092490
Hom.:
0
Cov.:
28
AF XY:
0.00000279
AC XY:
1
AN XY:
357996
show subpopulations
Gnomad4 AFR exome
AF:
0.0000380
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:
0.00000358
Gnomad4 OTH exome
AF:
0.0000436
GnomAD4 genome
Cov.:
23
Bravo
AF:
0.00000756

ClinVar

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

Submissions by phenotype

Intellectual disability, CASK-related, X-linked Benign:1
Likely benign, criteria provided, single submitterclinical testingLabcorp Genetics (formerly Invitae), LabcorpDec 02, 2022- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.087
BayesDel_addAF
Benign
-0.27
T
BayesDel_noAF
Benign
-0.44
CADD
Uncertain
24
DANN
Uncertain
1.0
DEOGEN2
Benign
0.16
.;.;.;.;.;.;.;T;.;.;.;.;.;.
FATHMM_MKL
Pathogenic
0.99
D
LIST_S2
Uncertain
0.91
D;D;D;D;D;D;D;D;D;D;D;D;D;D
M_CAP
Uncertain
0.14
D
MetaRNN
Benign
0.16
T;T;T;T;T;T;T;T;T;T;T;T;T;T
MetaSVM
Benign
-1.1
T
MutationAssessor
Benign
1.6
.;.;.;.;.;.;.;L;.;.;.;.;.;.
MutationTaster
Benign
1.0
D;D;D;D;D;D;D
PrimateAI
Uncertain
0.77
T
PROVEAN
Benign
0.47
.;N;.;.;.;N;.;N;.;.;.;.;.;.
REVEL
Benign
0.18
Sift
Benign
1.0
.;T;.;.;.;D;.;D;.;.;.;.;.;.
Sift4G
Uncertain
0.027
.;.;.;.;.;D;.;D;.;.;.;.;.;.
Polyphen
0.63
P;B;.;P;.;B;.;P;.;.;.;.;.;.
Vest4
0.52
MutPred
0.54
.;.;.;.;.;.;.;Gain of catalytic residue at I894 (P = 0.0887);.;.;.;.;.;.;
MVP
0.70
MPC
0.93
ClinPred
0.26
T
GERP RS
5.8
Varity_R
0.54
gMVP
0.44

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: rs1318022389; hg19: chrX-41379774; API