chr20-505191-C-T

Position:

chr20-505191-C-T

Variant summary

Our verdict is Pathogenic. Variant got 16 ACMG points: 16P and 0B. PM1PM2PM5PP2PP3PP5_Very_Strong

The ENST00000217244.9(CSNK2A1):c.140G>A(p.Arg47Gln) variant causes a missense change involving the alteration of a conserved nucleotide. The variant was absent in control chromosomes in GnomAD project. In-silico tool predicts a pathogenic outcome for this variant. Variant has been reported in ClinVar as Likely pathogenic (★★). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. R47G) has been classified as Pathogenic.

Frequency

Genomes: not found (cov: 32)

Consequence

CSNK2A1
ENST00000217244.9 missense

Scores

Clinical Significance

Pathogenic/Likely pathogenic criteria provided, multiple submitters, no conflicts P:7

Conservation

PhyloP100: 7.89

Variant links:

Genes affected

CSNK2A1 (HGNC:2457): (casein kinase 2 alpha 1) Casein kinase II is a serine/threonine protein kinase that phosphorylates acidic proteins such as casein. It is involved in various cellular processes, including cell cycle control, apoptosis, and circadian rhythm. The kinase exists as a tetramer and is composed of an alpha, an alpha-prime, and two beta subunits. The alpha subunits contain the catalytic activity while the beta subunits undergo autophosphorylation. The protein encoded by this gene represents the alpha subunit. Multiple transcript variants encoding different protein isoforms have been found for this gene. [provided by RefSeq, Apr 2018]

CSNK2A1 links:

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ACMG classification

Classification made for transcript

Verdict is Pathogenic. Variant got 16 ACMG points.

PM1

In a hotspot region, there are 5 aminoacids with missense pathogenic changes in the window of +-8 aminoacids around while only 0 benign, 1 uncertain in ENST00000217244.9

PM2

Very rare variant in population databases, with high coverage;

PM5

Other missense variant is known to change same aminoacid residue: Variant chr20-505192-G-C is described in ClinVar as [Pathogenic]. Clinvar id is 280816.Status of the report is criteria_provided_single_submitter, 1 stars.

PP2

Missense variant in gene, where missense usually causes diseases (based on misZ statistic), CSNK2A1. . Gene score misZ 3.7123 (greater than the threshold 3.09). Trascript score misZ 5.3205 (greater than threshold 3.09). GenCC has associacion of gene with syndromic intellectual disability, Okur-Chung neurodevelopmental syndrome.

PP3

MetaRNN computational evidence supports a deleterious effect, 0.796

PP5

Variant 20-505191-C-T is Pathogenic according to our data. Variant chr20-505191-C-T is described in ClinVar as [Likely_pathogenic]. Clinvar id is 224796.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
CSNK2A1	NM_177559.3 linkuse as main transcript	c.140G>A	p.Arg47Gln	missense_variant	4/14	ENST00000217244.9	NP_808227.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris	UniProt
CSNK2A1	ENST00000217244.9 linkuse as main transcript	c.140G>A	p.Arg47Gln	missense_variant	4/14	1	NM_177559.3	ENSP00000217244	P1	P68400-1

Frequencies

GnomAD3 genomes

Cov.:

GnomAD4 exome

Cov.:

GnomAD4 genome

Cov.:

ClinVar

Significance: Pathogenic/Likely pathogenic

Submissions summary: Pathogenic:7

Revision: criteria provided, multiple submitters, no conflicts

LINK: link

Submissions by phenotype

Okur-Chung neurodevelopmental syndrome

Pathogenic:6

Pathogenic, criteria provided, single submitter	clinical testing	Equipe Genetique des Anomalies du Developpement, Université de Bourgogne	Jun 26, 2017	- -
Pathogenic, criteria provided, single submitter	clinical testing	3billion	Oct 02, 2021	Same nucleotide change resulting in same amino acid change has been previously reported as de novoo and observed in at least two similarly affected unrelated individuals (ClinVar ID: VCV000224796.3, PMID:28135719, 29240241, 27048600, and 29383814, PS2 and PS4). The missense variant is located in a mutational hot spot and/or well-established functional domain in which established pathogenic variants have been reported (PM1). It is not observed in the gnomAD v2.1.1 dataset (PM2). A different missense change at the same codon (p.Arg47Gly) has been reported as pathogenic/likely pathogenic with strong evidence (ClinVar ID: VCV000280816.3, PM5). The variant was observed as assumed (i.e. paternity and maternity not confirmed) de novoo (3billion dataset, PM6). Therefore, this variant is classified as pathogenic according to the recommendation of ACMG/AMP guideline. -
Pathogenic, no assertion criteria provided	provider interpretation	GenomeConnect - Simons Searchlight	Jan 16, 2019	Submission from Simons Searchlight facilitated by GenomeConnect. Variant interpreted by the Simons Searchlight team most recently on 2019-01-16 and interpreted as Pathogenic. The reporting laboratory might also submit to ClinVar. -
Pathogenic, criteria provided, single submitter	clinical testing	Mendelics	May 28, 2019	- -
Pathogenic, no assertion criteria provided	literature only	OMIM	Aug 05, 2016	- -
Pathogenic, criteria provided, single submitter	clinical testing	Victorian Clinical Genetics Services, Murdoch Childrens Research Institute	Sep 20, 2024	Based on the classification scheme VCGS_Germline_v1.3.4, this variant is classified as Pathogenic. Following criteria are met: 0102 - Loss of function is a known mechanism of disease in this gene and is associated with Okur-Chung neurodevelopmental syndrome (MIM#617062). The mechanism of missense variants is unclear. (I) 0107 - This gene is associated with autosomal dominant disease. (I) 0200 - Variant is predicted to result in a missense amino acid change from arginine to glutamine. (I) 0251 - This variant is heterozygous. (I) 0301 - Variant is absent from gnomAD (both v2 and v3). (SP) 0502 - Missense variant with conflicting in silico predictions and high conservation. (I) 0602 - Variant is located in a hotspot region or cluster of pathogenic variants (DECIPHER). (SP) 0801 - This variant has strong previous evidence of pathogenicity in unrelated individuals. This variant has been reported several times as likely pathogenic and pathogenic (ClinVar), and observed as de novo in multiple individuals with developmental delay (VCGS, DECIPHER, PMID: 27048600; PMID: 29383814). (SP) 1203 - This variant has been shown to be de novo in the proband (parental status confirmed, by trio analysis). (SP) Legend: (SP) - Supporting pathogenic, (I) - Information, (SB) - Supporting benign -

Inborn genetic diseases

Pathogenic:1

Likely pathogenic, criteria provided, single submitter

clinical testing

Ambry Genetics

May 03, 2017

- -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Pathogenic

1.0

BayesDel_addAF

Uncertain

0.14

BayesDel_noAF

Uncertain

-0.040

CADD

Pathogenic

DANN

Pathogenic

1.0

DEOGEN2

Benign

0.41

T;T;T;T;T;T;.;.;.;T;.;.;.;T;T;.;.;.;.;.;.;.;.;.

Eigen

Uncertain

0.54

Eigen_PC

Uncertain

0.57

FATHMM_MKL

Pathogenic

0.99

LIST_S2

Pathogenic

0.99

.;.;.;D;.;.;D;.;D;.;D;D;D;.;D;D;D;D;D;D;D;D;D;D

M_CAP

Benign

0.053

MetaRNN

Pathogenic

0.80

D;D;D;D;D;D;D;D;D;D;D;D;D;D;D;D;D;D;D;D;D;D;D;D

MetaSVM

Benign

-0.55

MutationAssessor

Benign

0.53

N;N;N;.;N;N;.;.;.;N;.;.;.;N;N;.;.;.;.;.;.;.;.;.

MutationTaster

Benign

1.0

D;D;D;D

PrimateAI

Pathogenic

0.89

PROVEAN

Uncertain

-3.6

.;.;.;D;D;.;.;.;.;.;.;.;.;.;.;.;.;.;.;.;.;.;.;.

REVEL

Uncertain

0.43

Sift

Uncertain

0.0010

.;.;.;D;D;.;.;.;.;.;.;.;.;.;.;.;.;.;.;.;.;.;.;.

Sift4G

Uncertain

0.053

.;.;.;T;T;.;.;.;.;.;.;.;.;.;.;.;.;.;.;.;.;.;.;.

Polyphen

1.0

D;D;D;.;D;D;.;.;.;D;.;.;.;D;D;.;.;.;.;.;.;.;.;.

Vest4

0.79, 0.79

MutPred

0.58

Loss of MoRF binding (P = 0.0205);Loss of MoRF binding (P = 0.0205);Loss of MoRF binding (P = 0.0205);Loss of MoRF binding (P = 0.0205);Loss of MoRF binding (P = 0.0205);Loss of MoRF binding (P = 0.0205);Loss of MoRF binding (P = 0.0205);Loss of MoRF binding (P = 0.0205);Loss of MoRF binding (P = 0.0205);Loss of MoRF binding (P = 0.0205);Loss of MoRF binding (P = 0.0205);Loss of MoRF binding (P = 0.0205);Loss of MoRF binding (P = 0.0205);Loss of MoRF binding (P = 0.0205);Loss of MoRF binding (P = 0.0205);Loss of MoRF binding (P = 0.0205);Loss of MoRF binding (P = 0.0205);Loss of MoRF binding (P = 0.0205);Loss of MoRF binding (P = 0.0205);Loss of MoRF binding (P = 0.0205);Loss of MoRF binding (P = 0.0205);Loss of MoRF binding (P = 0.0205);Loss of MoRF binding (P = 0.0205);Loss of MoRF binding (P = 0.0205);

MVP

0.85

MPC

2.9

ClinPred

1.0

GERP RS

4.6

Varity_R

0.95

gMVP

0.64

Splicing

Name

Calibrated prediction

Score

Prediction

SpliceAI score (max)

0.070

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