Genetic Variant CASKIN2:p.Asp1191Asn (chr17-75501118-C-T) – ACMG Classification: Uncertain_significance (2 pts)

Variant summary

Our verdict is Uncertain significance. Variant got 2 ACMG points: 2P and 0B. PM2

The NM_020753.5(CASKIN2):c.3571G>A(p.Asp1191Asn) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.0000811 in 1,590,740 control chromosomes in the GnomAD database, with no homozygous occurrence. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar.

Frequency

Genomes: 𝑓 0.00017 ( 0 hom., cov: 33)

Exomes 𝑓: 0.000072 ( 0 hom. )

Consequence

CASKIN2
NM_020753.5 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 7.68

Variant links:

Genes affected

CASKIN2 (HGNC:18200): (CASK interacting protein 2) This gene encodes a large protein that contains six ankyrin repeats, as well as a Src homology 3 (SH3) domain and two sterile alpha motif (SAM) domains, which may be involved in protein-protein interactions. The C-terminal portion of this protein is proline-rich and contains a conserved region. A related protein interacts with calcium/calmodulin-dependent serine protein kinase (CASK). Alternative splicing results in multiple transcript variants. [provided by RefSeq, Mar 2013]

CASKIN2 links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 2 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
CASKIN2	NM_020753.5 link	c.3571G>A	p.Asp1191Asn	missense_variant	Exon 20 of 20	ENST00000321617.8	NP_065804.2	Q8WXE0-1
CASKIN2	NM_001142643.3 link	c.3325G>A	p.Asp1109Asn	missense_variant	Exon 19 of 19		NP_001136115.1	Q8WXE0-2
CASKIN2	XM_047436459.1 link	c.3571G>A	p.Asp1191Asn	missense_variant	Exon 20 of 20		XP_047292415.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
CASKIN2	ENST00000321617.8 link	c.3571G>A	p.Asp1191Asn	missense_variant	Exon 20 of 20	1	NM_020753.5	ENSP00000325355.3		Q8WXE0-1
CASKIN2	ENST00000433559.6 link	c.3325G>A	p.Asp1109Asn	missense_variant	Exon 19 of 19	2		ENSP00000406963.2		Q8WXE0-2

Frequencies

GnomAD3 genomes

AF:

0.000171

AC:

AN:

152134

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.000507

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.00

Gnomad ASJ

AF:

0.00

Gnomad EAS

AF:

0.000386

Gnomad SAS

AF:

0.00

Gnomad FIN

AF:

0.00

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.0000441

Gnomad OTH

AF:

0.00

GnomAD3 exomes

AF:

0.0000517

AC:

AN:

212882

Hom.:

AF XY:

0.0000437

AC XY:

AN XY:

114414

show subpopulations

Gnomad AFR exome

AF:

0.000309

Gnomad AMR exome

AF:

0.00

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.000248

Gnomad SAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.0000319

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.0000716

AC:

103

AN:

1438606

Hom.:

Cov.:

AF XY:

0.0000743

AC XY:

AN XY:

713274

show subpopulations

Gnomad4 AFR exome

AF:

0.000392

Gnomad4 AMR exome

AF:

0.00

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.000207

Gnomad4 SAS exome

AF:

0.0000363

Gnomad4 FIN exome

AF:

0.0000389

Gnomad4 NFE exome

AF:

0.0000645

Gnomad4 OTH exome

AF:

0.000101

GnomAD4 genome

AF:

0.000171

AC:

AN:

152134

Hom.:

Cov.:

AF XY:

0.000121

AC XY:

AN XY:

74320

show subpopulations

Gnomad4 AFR

AF:

0.000507

Gnomad4 AMR

AF:

0.00

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.000386

Gnomad4 SAS

AF:

0.00

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.0000441

Gnomad4 OTH

AF:

0.00

Alfa

AF:

0.000132

Hom.:

Bravo

AF:

0.000178

ESP6500AA

AF:

0.000684

AC:

ESP6500EA

AF:

0.00

AC:

ExAC

AF:

0.0000913

AC:

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

not specified

Uncertain:1

Dec 16, 2024

Ambry Genetics

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: clinical testing

The c.3571G>A (p.D1191N) alteration is located in exon 20 (coding exon 19) of the CASKIN2 gene. This alteration results from a G to A substitution at nucleotide position 3571, causing the aspartic acid (D) at amino acid position 1191 to be replaced by an asparagine (N). Based on insufficient or conflicting evidence, the clinical significance of this alteration remains unclear. -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.33

BayesDel_addAF

Benign

-0.13

BayesDel_noAF

Benign

-0.10

CADD

Uncertain

DANN

Uncertain

1.0

DEOGEN2

Benign

0.26

T;.

Eigen

Pathogenic

0.71

Eigen_PC

Uncertain

0.63

FATHMM_MKL

Uncertain

0.97

LIST_S2

Uncertain

0.90

D;D

M_CAP

Uncertain

0.11

MetaRNN

Uncertain

0.48

T;T

MetaSVM

Pathogenic

0.85

MutationAssessor

Uncertain

2.4

M;.

PrimateAI

Uncertain

0.78

PROVEAN

Uncertain

-3.2

D;D

REVEL

Uncertain

0.58

Sift

Pathogenic

0.0

D;D

Sift4G

Uncertain

0.0090

D;D

Polyphen

1.0

D;.

Vest4

0.51

MVP

0.90

MPC

0.13

ClinPred

0.57

GERP RS

5.6

Varity_R

0.40

gMVP

0.47

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.

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

LitVar

Other links and lift over