Genetic Variant CASKIN2:p.Arg1122Trp (chr17-75501622-G-A) – ACMG Classification: Uncertain_significance (0 pts)

Variant summary

Our verdict is Uncertain significance. Variant got 0 ACMG points: 2P and 2B. PM2BP4_Moderate

The NM_020753.5(CASKIN2):c.3364C>T(p.Arg1122Trp) variant causes a missense change. The variant allele was found at a frequency of 0.0000568 in 1,601,694 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.000026 ( 0 hom., cov: 33)

Exomes 𝑓: 0.000060 ( 0 hom. )

Consequence

CASKIN2
NM_020753.5 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 4.73

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 0 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

BP4

Computational evidence support a benign effect (MetaRNN=0.22204962).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
CASKIN2	NM_020753.5 link	c.3364C>T	p.Arg1122Trp	missense_variant	Exon 19 of 20	ENST00000321617.8	NP_065804.2	Q8WXE0-1
CASKIN2	NM_001142643.3 link	c.3118C>T	p.Arg1040Trp	missense_variant	Exon 18 of 19		NP_001136115.1	Q8WXE0-2
CASKIN2	XM_047436459.1 link	c.3364C>T	p.Arg1122Trp	missense_variant	Exon 19 of 20		XP_047292415.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
CASKIN2	ENST00000321617.8 link	c.3364C>T	p.Arg1122Trp	missense_variant	Exon 19 of 20	1	NM_020753.5	ENSP00000325355.3		Q8WXE0-1
CASKIN2	ENST00000433559.6 link	c.3118C>T	p.Arg1040Trp	missense_variant	Exon 18 of 19	2		ENSP00000406963.2		Q8WXE0-2

Frequencies

GnomAD3 genomes

AF:

0.0000263

AC:

AN:

152208

Hom.:

Cov.:

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:

0.000193

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:

0.0000494

AC:

AN:

242828

Hom.:

AF XY:

0.0000603

AC XY:

AN XY:

132712

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.00

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.000110

Gnomad SAS exome

AF:

0.0000658

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.0000731

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.0000600

AC:

AN:

1449486

Hom.:

Cov.:

AF XY:

0.0000542

AC XY:

AN XY:

719340

show subpopulations

Gnomad4 AFR exome

AF:

0.00

Gnomad4 AMR exome

AF:

0.00

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.0000254

Gnomad4 SAS exome

AF:

0.0000349

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.0000742

Gnomad4 OTH exome

AF:

0.0000167

GnomAD4 genome

AF:

0.0000263

AC:

AN:

152208

Hom.:

Cov.:

AF XY:

0.0000403

AC XY:

AN XY:

74366

show subpopulations

Gnomad4 AFR

AF:

0.00

Gnomad4 AMR

AF:

0.00

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.000193

Gnomad4 SAS

AF:

0.00

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.0000441

Gnomad4 OTH

AF:

0.00

Alfa

AF:

0.0000453

Hom.:

Bravo

AF:

0.0000227

ExAC

AF:

0.0000578

AC:

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

not specified

Uncertain:1

Aug 16, 2021

Ambry Genetics

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: clinical testing

The c.3364C>T (p.R1122W) alteration is located in exon 19 (coding exon 18) of the CASKIN2 gene. This alteration results from a C to T substitution at nucleotide position 3364, causing the arginine (R) at amino acid position 1122 to be replaced by a tryptophan (W). 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

0.15

BayesDel_addAF

Benign

-0.15

BayesDel_noAF

Benign

-0.26

CADD

Uncertain

DANN

Pathogenic

1.0

DEOGEN2

Benign

0.0056

T;.

Eigen

Uncertain

0.32

Eigen_PC

Uncertain

0.36

FATHMM_MKL

Uncertain

0.92

LIST_S2

Uncertain

0.88

D;D

M_CAP

Uncertain

0.18

MetaRNN

Benign

0.22

T;T

MetaSVM

Benign

-0.60

MutationAssessor

Benign

0.81

L;.

PrimateAI

Uncertain

0.73

PROVEAN

Benign

0.090

N;N

REVEL

Benign

0.13

Sift

Benign

0.20

T;T

Sift4G

Uncertain

0.025

D;D

Polyphen

1.0

D;.

Vest4

0.36

MutPred

0.34

Loss of methylation at R1122 (P = 0.0185);.;

MVP

0.44

MPC

0.60

ClinPred

0.36

GERP RS

4.6

Varity_R

0.13

gMVP

0.16

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