chrX-41534697-A-G

Variant summary

Our verdict is Benign. Variant got -13 ACMG points: 0P and 13B. BP4_StrongBP6BS1BS2

The NM_001367721.1(CASK):​c.2317+9T>C variant causes a intron change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000159 in 1,169,599 control chromosomes in the GnomAD database, with no homozygous occurrence. There are 55 hemizygotes in GnomAD. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Conflicting classifications of pathogenicity (no stars).

Frequency

Genomes: 𝑓 0.00079 ( 0 hom., 27 hem., cov: 23)
Exomes 𝑓: 0.000093 ( 0 hom. 28 hem. )

Consequence

CASK
NM_001367721.1 intron

Scores

2

Clinical Significance

Conflicting classifications of pathogenicity criteria provided, conflicting classifications U:1B:2

Conservation

PhyloP100: 1.37
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]

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ACMG classification

Classification made for transcript

Verdict is Benign. Variant got -13 ACMG points.

BP4
Computational evidence support a benign effect (BayesDel_noAF=-0.58).
BP6
Variant X-41534697-A-G is Benign according to our data. Variant chrX-41534697-A-G is described in ClinVar as [Conflicting_classifications_of_pathogenicity]. Clinvar id is 287834.We mark this variant Likely_benign, oryginal submissions are: {Benign=1, Uncertain_significance=1}.
BS1
Variant frequency is greater than expected in population afr. gnomad4 allele frequency = 0.000788 (88/111731) while in subpopulation AFR AF= 0.0027 (83/30781). AF 95% confidence interval is 0.00223. There are 0 homozygotes in gnomad4. There are 27 alleles in male gnomad4 subpopulation. Median coverage is 23. This position pass quality control queck.
BS2
High Hemizygotes in GnomAd4 at 27 XL gene

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
CASKNM_001367721.1 linkuse as main transcriptc.2317+9T>C intron_variant ENST00000378163.7 NP_001354650.1

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
CASKENST00000378163.7 linkuse as main transcriptc.2317+9T>C intron_variant 5 NM_001367721.1 ENSP00000367405 A1O14936-1

Frequencies

GnomAD3 genomes
AF:
0.000788
AC:
88
AN:
111678
Hom.:
0
Cov.:
23
AF XY:
0.000798
AC XY:
27
AN XY:
33836
show subpopulations
Gnomad AFR
AF:
0.00270
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.000286
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:
0.00132
GnomAD3 exomes
AF:
0.000229
AC:
42
AN:
183216
Hom.:
0
AF XY:
0.000192
AC XY:
13
AN XY:
67666
show subpopulations
Gnomad AFR exome
AF:
0.00289
Gnomad AMR exome
AF:
0.000110
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:
0.000221
GnomAD4 exome
AF:
0.0000926
AC:
98
AN:
1057868
Hom.:
0
Cov.:
26
AF XY:
0.0000848
AC XY:
28
AN XY:
330308
show subpopulations
Gnomad4 AFR exome
AF:
0.00250
Gnomad4 AMR exome
AF:
0.000313
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.00
Gnomad4 SAS exome
AF:
0.0000376
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.00
Gnomad4 OTH exome
AF:
0.000469
GnomAD4 genome
AF:
0.000788
AC:
88
AN:
111731
Hom.:
0
Cov.:
23
AF XY:
0.000796
AC XY:
27
AN XY:
33899
show subpopulations
Gnomad4 AFR
AF:
0.00270
Gnomad4 AMR
AF:
0.000286
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:
0.00130
Alfa
AF:
0.000491
Hom.:
1
Bravo
AF:
0.000850

ClinVar

Significance: Conflicting classifications of pathogenicity
Submissions summary: Uncertain:1Benign:2
Revision: criteria provided, conflicting classifications
LINK: link

Submissions by phenotype

not provided Uncertain:1
Uncertain significance, criteria provided, single submitterclinical testingEurofins Ntd Llc (ga)May 06, 2016- -
CASK-related disorder Benign:1
Likely benign, no assertion criteria providedclinical testingPreventionGenetics, part of Exact SciencesMar 09, 2021This variant is classified as likely benign based on ACMG/AMP sequence variant interpretation guidelines (Richards et al. 2015 PMID: 25741868, with internal and published modifications). -
Intellectual disability, CASK-related, X-linked Benign:1
Benign, criteria provided, single submitterclinical testingLabcorp Genetics (formerly Invitae), LabcorpJan 24, 2024- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
BayesDel_noAF
Benign
-0.58
CADD
Benign
11
DANN
Benign
0.80
RBP_binding_hub_radar
0.0
RBP_regulation_power_radar
1.1

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: rs5964007; hg19: chrX-41393950; API