Genetic Variant CILK1:p.Lys220Glu (chr6-53018335-T-C) – ACMG Classification: Uncertain_significance (2 pts)

Variant summary

Our verdict is Uncertain significance. The variant received 2 ACMG points: 2P and 0B. PM2

The NM_014920.5(CILK1):c.658A>G(p.Lys220Glu) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.000000684 in 1,461,826 control chromosomes in the GnomAD database, with no homozygous occurrence. Variant has been reported in ClinVar as risk factor (no stars).

Frequency

Genomes: not found (cov: 33)

Exomes 𝑓: 6.8e-7 ( 0 hom. )

Consequence

CILK1
NM_014920.5 missense

Scores

Clinical Significance

risk factor no assertion criteria provided O:1

Conservation

PhyloP100: 8.01

Publications

1 publications found

Variant links:

Genes affected

CILK1 (HGNC:21219): (ciliogenesis associated kinase 1) Eukaryotic protein kinases are enzymes that belong to a very extensive family of proteins which share a conserved catalytic core common with both serine/threonine and tyrosine protein kinases. This gene encodes an intestinal serine/threonine kinase harboring a dual phosphorylation site found in mitogen-activating protein (MAP) kinases. The protein localizes to the intestinal crypt region and is thought to be important in intestinal epithelial cell proliferation and differentiation. Alternative splicing has been observed at this locus and two variants, encoding the same isoform, have been identified. [provided by RefSeq, Jul 2008]

CILK1 Gene-Disease associations (from GenCC):

endocrine-cerebro-osteodysplasia syndrome
Inheritance: AR Classification: STRONG, MODERATE, SUPPORTIVE Submitted by: Labcorp Genetics (formerly Invitae), Orphanet, Genomics England PanelApp
juvenile myoclonic epilepsy
Inheritance: AD Classification: SUPPORTIVE Submitted by: Orphanet

CILK1 links:

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Uncertain_significance. The variant received 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
CILK1	NM_014920.5 link	c.658A>G	p.Lys220Glu	missense_variant	Exon 7 of 14	ENST00000676107.1	NP_055735.1	Q9UPZ9-1A0A024RD59

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	UniProt
CILK1	ENST00000676107.1 link	c.658A>G	p.Lys220Glu	missense_variant	Exon 7 of 14		NM_014920.5	ENSP00000501692.1	Q9UPZ9-1
CILK1	ENST00000350082.10 link	c.658A>G	p.Lys220Glu	missense_variant	Exon 7 of 14	1		ENSP00000263043.8	A0A7I2PIU1
CILK1	ENST00000356971.3 link	c.658A>G	p.Lys220Glu	missense_variant	Exon 8 of 15	2		ENSP00000349458.3	Q9UPZ9-1

Frequencies

GnomAD3 genomes

Cov.:

GnomAD4 exome

AF:

6.84e-7

AC:

AN:

1461826

Hom.:

Cov.:

AF XY:

0.00

AC XY:

AN XY:

727218

show subpopulations

African (AFR)

AF:

0.00

AC:

AN:

33478

American (AMR)

AF:

0.0000224

AC:

AN:

44724

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

26134

East Asian (EAS)

AF:

0.00

AC:

AN:

39700

South Asian (SAS)

AF:

0.00

AC:

AN:

86256

European-Finnish (FIN)

AF:

0.00

AC:

AN:

53410

Middle Eastern (MID)

AF:

0.00

AC:

AN:

5760

European-Non Finnish (NFE)

AF:

0.00

AC:

AN:

1111968

Other (OTH)

AF:

0.00

AC:

AN:

60396

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.525

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

GnomAD4 genome

Cov.:

ClinVar

Significance: risk factor

Submissions summary: Other:1

Revision: no assertion criteria provided

LINK: link

Submissions by phenotype

Epilepsy, juvenile myoclonic, susceptibility to, 10

Other:1

Apr 04, 2018

OMIM

Significance:risk factor

Review Status:no assertion criteria provided

Collection Method:literature only

- -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.29

BayesDel_addAF

Uncertain

0.12

BayesDel_noAF

Uncertain

-0.070

CADD

Uncertain

(source)

DANN

Uncertain

1.0

DEOGEN2

Benign

0.0067

T;T

Eigen

Benign

0.0088

Eigen_PC

Benign

0.21

FATHMM_MKL

Pathogenic

0.98

LIST_S2

Uncertain

0.95

.;D

M_CAP

Benign

0.0069

MetaRNN

Uncertain

0.48

T;T

MetaSVM

Benign

-1.1

MutationAssessor

Benign

0.43

N;N

PhyloP100

8.0

PrimateAI

Uncertain

0.74

PROVEAN

Benign

-1.7

N;N

REVEL

Benign

0.25

Sift

Benign

0.087

T;T

Sift4G

Benign

0.13

T;T

Polyphen

0.071

B;B

Vest4

0.70

MutPred

0.42

Loss of methylation at K220 (P = 0.009);Loss of methylation at K220 (P = 0.009);

MVP

0.46

MPC

0.54

ClinPred

0.91

GERP RS

5.2

Varity_R

0.43

gMVP

0.69

Mutation Taster

=7/93

disease causing

(source)

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

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Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

Publications

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

Other links and lift over