Genetic Variant CDK18:p.Arg81Trp (chr1-205523593-C-T) – 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_212502.3(CDK18):c.241C>T(p.Arg81Trp) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000568 in 1,585,474 control chromosomes in the GnomAD database, including 1 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.00019 ( 0 hom., cov: 32)

Exomes 𝑓: 0.000043 ( 1 hom. )

Consequence

CDK18
NM_212502.3 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 2.35

Variant links:

Genes affected

CDK18 (HGNC:8751): (cyclin dependent kinase 18) Predicted to enable ATP binding activity; cyclin-dependent protein serine/threonine kinase activity; and protein serine kinase activity. Predicted to be involved in protein phosphorylation and regulation of transcription involved in G1/S transition of mitotic cell cycle. Predicted to be active in cytoplasm and nucleus. [provided by Alliance of Genome Resources, Apr 2022]

CDK18 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=0.09961355).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
CDK18	NM_212502.3 link	c.241C>T	p.Arg81Trp	missense_variant	Exon 3 of 16	ENST00000429964.7	NP_997667.1	Q07002-2A0A024R996Q59G02

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
CDK18	ENST00000429964.7 link	c.241C>T	p.Arg81Trp	missense_variant	Exon 3 of 16	1	NM_212502.3	ENSP00000399082.2		Q07002-2

Frequencies

GnomAD3 genomes

AF:

0.000191

AC:

AN:

152212

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.000579

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.000262

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:

0.0000147

Gnomad OTH

AF:

0.00

GnomAD3 exomes

AF:

0.000123

AC:

AN:

195104

Hom.:

AF XY:

0.000133

AC XY:

AN XY:

105360

show subpopulations

Gnomad AFR exome

AF:

0.000535

Gnomad AMR exome

AF:

0.000518

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.0000679

Gnomad SAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.0000239

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.0000426

AC:

AN:

1433144

Hom.:

Cov.:

AF XY:

0.0000493

AC XY:

AN XY:

710300

show subpopulations

Gnomad4 AFR exome

AF:

0.000304

Gnomad4 AMR exome

AF:

0.000322

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.0000261

Gnomad4 SAS exome

AF:

0.0000122

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.0000319

Gnomad4 OTH exome

AF:

0.0000169

GnomAD4 genome

AF:

0.000190

AC:

AN:

152330

Hom.:

Cov.:

AF XY:

0.000215

AC XY:

AN XY:

74490

show subpopulations

Gnomad4 AFR

AF:

0.000577

Gnomad4 AMR

AF:

0.000261

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.00

Gnomad4 SAS

AF:

0.00

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.0000147

Gnomad4 OTH

AF:

0.00

Alfa

AF:

0.0000658

Hom.:

Bravo

AF:

0.000204

TwinsUK

AF:

0.000270

AC:

ALSPAC

AF:

0.00

AC:

ESP6500AA

AF:

0.00137

AC:

ESP6500EA

AF:

0.000117

AC:

ExAC

AF:

0.0000666

AC:

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

not specified

Uncertain:1

Oct 20, 2021

Ambry Genetics

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: clinical testing

The c.241C>T (p.R81W) alteration is located in exon 3 (coding exon 2) of the CDK18 gene. This alteration results from a C to T substitution at nucleotide position 241, causing the arginine (R) at amino acid position 81 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

0.13

BayesDel_addAF

Benign

-0.21

BayesDel_noAF

Benign

-0.19

CADD

Uncertain

DANN

Pathogenic

1.0

DEOGEN2

Benign

0.12

.;.;.;T;T

Eigen

Uncertain

0.49

Eigen_PC

Uncertain

0.45

FATHMM_MKL

Uncertain

0.79

LIST_S2

Benign

0.84

.;T;T;T;T

M_CAP

Uncertain

0.18

MetaRNN

Benign

0.10

T;T;T;T;T

MetaSVM

Benign

-0.42

PrimateAI

Benign

0.31

PROVEAN

Benign

-2.2

N;N;N;N;N

REVEL

Benign

0.17

Sift

Uncertain

0.0070

D;D;D;D;D

Sift4G

Uncertain

0.0060

D;D;D;T;D

Polyphen

1.0

.;D;.;.;.

Vest4

0.50

MVP

0.89

MPC

0.62

ClinPred

0.11

GERP RS

5.5

RBP_binding_hub_radar

0.0

RBP_regulation_power_radar

1.7

Varity_R

0.11

gMVP

0.38

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