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GeneBe

X-41520525-G-C

Variant summary

Our verdict is Likely benign. Variant got -5 ACMG points: 2P and 7B. PM2BP4_StrongBP6_ModerateBP7

The NM_001367721.1(CASK):c.2676C>G(p.Leu892=) variant causes a synonymous change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000895 in 111,745 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 Benign (★).

Frequency

Genomes: 𝑓 0.0000089 ( 0 hom., 1 hem., cov: 23)

Consequence

CASK
NM_001367721.1 synonymous

Scores

2

Clinical Significance

Benign criteria provided, single submitter B:1

Conservation

PhyloP100: 2.30
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)

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ACMG classification

Classification made for transcript

Verdict is Likely_benign. Variant got -5 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
BP4
Computational evidence support a benign effect (BayesDel_noAF=-0.53).
BP6
Variant X-41520525-G-C is Benign according to our data. Variant chrX-41520525-G-C is described in ClinVar as [Benign]. Clinvar id is 2034510.Status of the report is criteria_provided_single_submitter, 1 stars.
BP7
Synonymous conserved (PhyloP=2.3 with no splicing effect.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
CASKNM_001367721.1 linkuse as main transcriptc.2676C>G p.Leu892= synonymous_variant 27/27 ENST00000378163.7

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
CASKENST00000378163.7 linkuse as main transcriptc.2676C>G p.Leu892= synonymous_variant 27/275 NM_001367721.1 A1O14936-1
CASK-AS1ENST00000451126.1 linkuse as main transcriptn.331+159G>C intron_variant, non_coding_transcript_variant 2

Frequencies

GnomAD3 genomes
AF:
0.00000895
AC:
1
AN:
111745
Hom.:
0
Cov.:
23
AF XY:
0.0000295
AC XY:
1
AN XY:
33911
show subpopulations
Gnomad AFR
AF:
0.0000326
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:
0.00
Gnomad OTH
AF:
0.00
GnomAD3 exomes
AF:
0.00000547
AC:
1
AN:
182758
Hom.:
0
AF XY:
0.0000149
AC XY:
1
AN XY:
67298
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
Cov.:
28
GnomAD4 genome
AF:
0.00000895
AC:
1
AN:
111745
Hom.:
0
Cov.:
23
AF XY:
0.0000295
AC XY:
1
AN XY:
33911
show subpopulations
Gnomad4 AFR
AF:
0.0000326
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:
0.00
Gnomad4 OTH
AF:
0.00

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 testingInvitaeOct 07, 2022- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
BayesDel_noAF
Benign
-0.53
Cadd
Benign
8.0
Dann
Benign
0.80

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: rs765320580; hg19: chrX-41379778; API