rs546044640

Variant summary

Our verdict is Benign. The variant received -21 ACMG points: 0P and 21B. BP4_StrongBP6_Very_StrongBP7BS1BS2

The NM_001367721.1(CASK):​c.2019T>G​(p.Pro673Pro) variant causes a synonymous change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00125 in 1,202,486 control chromosomes in the GnomAD database, including 10 homozygotes. There are 871 hemizygotes in GnomAD. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Benign (★★).

Frequency

Genomes: 𝑓 0.00062 ( 1 hom., 35 hem., cov: 23)
Exomes 𝑓: 0.0013 ( 9 hom. 836 hem. )

Consequence

CASK
NM_001367721.1 synonymous

Scores

2

Clinical Significance

Benign criteria provided, multiple submitters, no conflicts B:5

Conservation

PhyloP100: 2.23

Publications

0 publications found
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 Gene-Disease associations (from GenCC):
  • FG syndrome 4
    Inheritance: XL Classification: DEFINITIVE, STRONG Submitted by: Labcorp Genetics (formerly Invitae), Ambry Genetics, G2P
  • syndromic X-linked intellectual disability Najm type
    Inheritance: XL Classification: DEFINITIVE, STRONG, SUPPORTIVE Submitted by: G2P, Ambry Genetics, Orphanet, Labcorp Genetics (formerly Invitae)
  • X-linked syndromic intellectual disability
    Inheritance: XL Classification: DEFINITIVE Submitted by: ClinGen
  • genetic developmental and epileptic encephalopathy
    Inheritance: AD Classification: SUPPORTIVE Submitted by: Orphanet

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Benign. The variant received -21 ACMG points.

BP4
Computational evidence support a benign effect (BayesDel_noAF=-0.61).
BP6
Variant X-41553739-A-C is Benign according to our data. Variant chrX-41553739-A-C is described in ClinVar as Benign. ClinVar VariationId is 210582.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.
BP7
Synonymous conserved (PhyloP=2.23 with no splicing effect.
BS1
Variant frequency is greater than expected in population sas. GnomAd4 allele frequency = 0.000616 (69/112017) while in subpopulation SAS AF = 0.0259 (69/2666). AF 95% confidence interval is 0.021. There are 1 homozygotes in GnomAd4. There are 35 alleles in the male GnomAd4 subpopulation. Median coverage is 23. This position passed quality control check.
BS2
High AC in GnomAd4 at 69 XL,AD gene.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
CASKNM_001367721.1 linkc.2019T>G p.Pro673Pro synonymous_variant Exon 21 of 27 ENST00000378163.7 NP_001354650.1

Ensembl

Gene Transcript HGVSc HGVSp Effect Exon rank TSL MANE Protein Appris UniProt
CASKENST00000378163.7 linkc.2019T>G p.Pro673Pro synonymous_variant Exon 21 of 27 5 NM_001367721.1 ENSP00000367405.1 O14936-1

Frequencies

GnomAD3 genomes
AF:
0.000625
AC:
70
AN:
111963
Hom.:
1
Cov.:
23
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:
0.0262
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.00
Gnomad OTH
AF:
0.00
GnomAD2 exomes
AF:
0.00257
AC:
456
AN:
177142
AF XY:
0.00412
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.00
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.0000740
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.0000128
Gnomad OTH exome
AF:
0.00114
GnomAD4 exome
AF:
0.00131
AC:
1433
AN:
1090469
Hom.:
9
Cov.:
28
AF XY:
0.00235
AC XY:
836
AN XY:
356249
show subpopulations
African (AFR)
AF:
0.0000761
AC:
2
AN:
26272
American (AMR)
AF:
0.00
AC:
0
AN:
35087
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
19316
East Asian (EAS)
AF:
0.0000664
AC:
2
AN:
30104
South Asian (SAS)
AF:
0.0248
AC:
1330
AN:
53627
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
40418
Middle Eastern (MID)
AF:
0.000728
AC:
3
AN:
4120
European-Non Finnish (NFE)
AF:
0.0000227
AC:
19
AN:
835684
Other (OTH)
AF:
0.00168
AC:
77
AN:
45841
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.475
Heterozygous variant carriers
0
30
60
90
120
150
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Exome Het
Exome Hom
Variant carriers
0
20
40
60
80
100
<30
30-35
35-40
40-45
45-50
50-55
55-60
60-65
65-70
70-75
75-80
>80
Age
GnomAD4 genome
AF:
0.000616
AC:
69
AN:
112017
Hom.:
1
Cov.:
23
AF XY:
0.00102
AC XY:
35
AN XY:
34181
show subpopulations
African (AFR)
AF:
0.00
AC:
0
AN:
30895
American (AMR)
AF:
0.00
AC:
0
AN:
10527
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
2647
East Asian (EAS)
AF:
0.00
AC:
0
AN:
3600
South Asian (SAS)
AF:
0.0259
AC:
69
AN:
2666
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
6053
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
219
European-Non Finnish (NFE)
AF:
0.00
AC:
0
AN:
53191
Other (OTH)
AF:
0.00
AC:
0
AN:
1530
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.523
Heterozygous variant carriers
0
2
3
5
6
8
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Genome Het
Genome Hom
Variant carriers
0
2
4
6
8
10
<30
30-35
35-40
40-45
45-50
50-55
55-60
60-65
65-70
70-75
75-80
>80
Age
Alfa
AF:
0.000202
Hom.:
3
Bravo
AF:
0.000159

ClinVar

Significance: Benign
Submissions summary: Benign:5
Revision: criteria provided, multiple submitters, no conflicts
LINK: link

Submissions by phenotype

not specified Benign:2
Mar 01, 2016
Eurofins Ntd Llc (ga)
Significance:Benign
Review Status:criteria provided, single submitter
Collection Method:clinical testing

- -

Mar 07, 2017
Genetic Services Laboratory, University of Chicago
Significance:Benign
Review Status:criteria provided, single submitter
Collection Method:clinical testing

- -

Inborn genetic diseases Benign:1
Jun 21, 2016
Ambry Genetics
Significance:Benign
Review Status:criteria provided, single submitter
Collection Method:clinical testing

This alteration is classified as benign based on a combination of the following: seen in unaffected individuals, population frequency, intact protein function, lack of segregation with disease, co-occurrence, RNA analysis, in silico models, amino acid conservation, lack of disease association in case-control studies, and/or the mechanism of disease or impacted region is inconsistent with a known cause of pathogenicity. -

not provided Benign:1
Jul 13, 2018
GeneDx
Significance:Benign
Review Status:criteria provided, single submitter
Collection Method:clinical testing

- -

Intellectual disability, CASK-related, X-linked Benign:1
Feb 03, 2025
Labcorp Genetics (formerly Invitae), Labcorp
Significance:Benign
Review Status:criteria provided, single submitter
Collection Method:clinical testing

- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
BayesDel_noAF
Benign
-0.61
CADD
Benign
11
DANN
Benign
0.77
PhyloP100
2.2
Mutation Taster
=95/5
polymorphism (auto)

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: rs546044640; hg19: chrX-41412992; API