chr20-484085-A-G

Variant summary

Our verdict is Benign. Variant got -20 ACMG points: 0P and 20B. BP4_StrongBP6_Very_StrongBS1BS2

The NM_177559.3(CSNK2A1):​c.1061-9T>C variant causes a splice polypyrimidine tract, intron change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000227 in 1,568,270 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 Likely benign (★★).

Frequency

Genomes: 𝑓 0.00030 ( 0 hom., cov: 32)
Exomes 𝑓: 0.00022 ( 0 hom. )

Consequence

CSNK2A1
NM_177559.3 splice_polypyrimidine_tract, intron

Scores

6
Splicing: ADA: 0.000005717
2

Clinical Significance

Benign/Likely benign criteria provided, multiple submitters, no conflicts B:3

Conservation

PhyloP100: 0.432
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]

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ACMG classification

Classification made for transcript

Verdict is Benign. Variant got -20 ACMG points.

BP4
Computational evidence support a benign effect (MetaRNN=0.0060699284).
BP6
Variant 20-484085-A-G is Benign according to our data. Variant chr20-484085-A-G is described in ClinVar as [Likely_benign]. Clinvar id is 1277616.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.
BS1
Variant frequency is greater than expected in population nfe. gnomad4 allele frequency = 0.000302 (46/152358) while in subpopulation NFE AF= 0.000265 (18/68038). AF 95% confidence interval is 0.000171. There are 0 homozygotes in gnomad4. There are 26 alleles in male gnomad4 subpopulation. Median coverage is 32. This position pass quality control queck.
BS2
High AC in GnomAd4 at 46 AD gene.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
CSNK2A1NM_177559.3 linkuse as main transcriptc.1061-9T>C splice_polypyrimidine_tract_variant, intron_variant ENST00000217244.9

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
CSNK2A1ENST00000217244.9 linkuse as main transcriptc.1061-9T>C splice_polypyrimidine_tract_variant, intron_variant 1 NM_177559.3 P1P68400-1

Frequencies

GnomAD3 genomes
AF:
0.000302
AC:
46
AN:
152240
Hom.:
0
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.0000724
Gnomad AMI
AF:
0.0263
Gnomad AMR
AF:
0.0000654
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:
0.000265
Gnomad OTH
AF:
0.00
GnomAD3 exomes
AF:
0.000151
AC:
28
AN:
185566
Hom.:
0
AF XY:
0.000119
AC XY:
12
AN XY:
100442
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.000463
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:
0.000168
Gnomad OTH exome
AF:
0.000674
GnomAD4 exome
AF:
0.000219
AC:
310
AN:
1415912
Hom.:
0
Cov.:
30
AF XY:
0.000216
AC XY:
152
AN XY:
702396
show subpopulations
Gnomad4 AFR exome
AF:
0.00
Gnomad4 AMR exome
AF:
0.000415
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.00
Gnomad4 SAS exome
AF:
0.00
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.000265
Gnomad4 OTH exome
AF:
0.000102
GnomAD4 genome
AF:
0.000302
AC:
46
AN:
152358
Hom.:
0
Cov.:
32
AF XY:
0.000349
AC XY:
26
AN XY:
74502
show subpopulations
Gnomad4 AFR
AF:
0.0000722
Gnomad4 AMR
AF:
0.0000653
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.00
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.000265
Gnomad4 OTH
AF:
0.00
Alfa
AF:
0.000245
Hom.:
0
Bravo
AF:
0.000397
ESP6500AA
AF:
0.000227
AC:
1
ESP6500EA
AF:
0.000116
AC:
1
ExAC
AF:
0.000116
AC:
14

ClinVar

Significance: Benign/Likely benign
Submissions summary: Benign:3
Revision: criteria provided, multiple submitters, no conflicts
LINK: link

Submissions by phenotype

not provided Benign:2
Benign, criteria provided, single submitterclinical testingGeneDxAug 28, 2019- -
Likely benign, criteria provided, single submitterclinical testingCeGaT Center for Human Genetics TuebingenAug 01, 2023CSNK2A1: PP2, BS2 -
Okur-Chung neurodevelopmental syndrome Benign:1
Likely benign, criteria provided, single submitterclinical testingFulgent Genetics, Fulgent GeneticsApr 13, 2022- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
BayesDel_noAF
Benign
-0.58
CADD
Benign
17
DANN
Benign
0.90
FATHMM_MKL
Benign
0.21
N
LIST_S2
Benign
0.17
T
MetaRNN
Benign
0.0061
T
MutationTaster
Benign
0.58
N;N;N;N
GERP RS
-1.2

Splicing

Name
Calibrated prediction
Score
Prediction
dbscSNV1_ADA
Benign
0.0000057
dbscSNV1_RF
Benign
0.026
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: rs371565154; hg19: chr20-464729; API