Genetic Variant CHEK1:p.Arg160Cys (chr11-125633216-C-T) – ACMG Classification: Likely_benign (-4 pts)

Variant summary

Our verdict is Likely benign. The variant received -4 ACMG points: 0P and 4B. BS2

The NM_001114122.3(CHEK1):c.478C>T(p.Arg160Cys) variant causes a missense change. The variant allele was found at a frequency of 0.0000224 in 1,603,884 control chromosomes in the GnomAD database, with no homozygous occurrence. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.000026 ( 0 hom., cov: 32)

Exomes 𝑓: 0.000022 ( 0 hom. )

Consequence

CHEK1
NM_001114122.3 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 4.64

Publications

8 publications found

Variant links:

Genes affected

CHEK1 (HGNC:1925): (checkpoint kinase 1) The protein encoded by this gene belongs to the Ser/Thr protein kinase family. It is required for checkpoint mediated cell cycle arrest in response to DNA damage or the presence of unreplicated DNA. This protein acts to integrate signals from ATM and ATR, two cell cycle proteins involved in DNA damage responses, that also associate with chromatin in meiotic prophase I. Phosphorylation of CDC25A protein phosphatase by this protein is required for cells to delay cell cycle progression in response to double-strand DNA breaks. Several alternatively spliced transcript variants have been found for this gene. [provided by RefSeq, Oct 2011]

CHEK1 Gene-Disease associations (from GenCC):

familial ovarian cancer
Inheritance: AD Classification: NO_KNOWN Submitted by: ClinGen
hereditary breast carcinoma
Inheritance: AD Classification: NO_KNOWN Submitted by: ClinGen

CHEK1 links:

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Likely_benign. The variant received -4 ACMG points.

BS2

High AC in GnomAdExome4 at 32 AD gene.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
CHEK1	NM_001114122.3 link	c.478C>T	p.Arg160Cys	missense_variant	Exon 6 of 13	ENST00000438015.7	NP_001107594.1	O14757-1B4DT73

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
CHEK1	ENST00000438015.7 link	c.478C>T	p.Arg160Cys	missense_variant	Exon 6 of 13	5	NM_001114122.3	ENSP00000388648.1		O14757-1

Frequencies

GnomAD3 genomes

AF:

0.0000263

AC:

AN:

151994

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.0000242

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.00

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:

0.0000441

Gnomad OTH

AF:

0.00

GnomAD2 exomes

AF:

0.0000332

AC:

AN:

241234

AF XY:

0.0000306

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.000161

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.0000270

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.0000220

AC:

AN:

1451890

Hom.:

Cov.:

AF XY:

0.0000235

AC XY:

AN XY:

721956

show subpopulations

African (AFR)

AF:

0.00

AC:

AN:

32870

American (AMR)

AF:

0.000120

AC:

AN:

41760

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

25876

East Asian (EAS)

AF:

0.0000255

AC:

AN:

39264

South Asian (SAS)

AF:

0.0000239

AC:

AN:

83616

European-Finnish (FIN)

AF:

0.00

AC:

AN:

53356

Middle Eastern (MID)

AF:

0.00

AC:

AN:

5746

European-Non Finnish (NFE)

AF:

0.0000216

AC:

AN:

1109316

Other (OTH)

AF:

0.00

AC:

AN:

60086

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.463

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Exome Het

Variant carriers

<30

30-35

35-40

40-45

45-50

50-55

55-60

60-65

65-70

70-75

75-80

>80

Age

GnomAD4 genome

AF:

0.0000263

AC:

AN:

151994

Hom.:

Cov.:

AF XY:

0.0000135

AC XY:

AN XY:

74208

show subpopulations

African (AFR)

AF:

0.0000242

AC:

AN:

41380

American (AMR)

AF:

0.00

AC:

AN:

15248

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

3468

East Asian (EAS)

AF:

0.00

AC:

AN:

5188

South Asian (SAS)

AF:

0.00

AC:

AN:

4828

European-Finnish (FIN)

AF:

0.00

AC:

AN:

10562

Middle Eastern (MID)

AF:

0.00

AC:

AN:

316

European-Non Finnish (NFE)

AF:

0.0000441

AC:

AN:

68004

Other (OTH)

AF:

0.00

AC:

AN:

2088

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.488

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Genome Het

Variant carriers

<30

30-35

35-40

40-45

45-50

50-55

55-60

60-65

65-70

70-75

75-80

>80

Age

Alfa

AF:

0.0000564

Hom.:

Bravo

AF:

0.0000189

ESP6500AA

AF:

0.00

AC:

ESP6500EA

AF:

0.000116

AC:

ExAC

AF:

0.0000494

AC:

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

Hereditary cancer-predisposing syndrome

Uncertain:1

Aug 01, 2018

GeneKor MSA

Significance:Uncertain significance

Review Status:criteria provided, single submitter

Collection Method:clinical testing

- -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.26

BayesDel_addAF

Benign

-0.062

BayesDel_noAF

Uncertain

-0.060

CADD

Pathogenic

(source)

DANN

Pathogenic

1.0

DEOGEN2

Benign

0.27

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

Eigen

Uncertain

0.51

Eigen_PC

Uncertain

0.52

FATHMM_MKL

Uncertain

0.97

LIST_S2

Uncertain

0.96

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

M_CAP

Benign

0.052

MetaRNN

Uncertain

0.56

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

MetaSVM

Benign

-0.33

MutationAssessor

Benign

2.0

M;M;.;M;.;.;.;.;M;M;.

PhyloP100

4.6

PrimateAI

Uncertain

0.78

PROVEAN

Pathogenic

-4.7

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

REVEL

Uncertain

0.34

Sift

Uncertain

0.0020

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

Sift4G

Uncertain

0.0090

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

Polyphen

1.0

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

Vest4

0.63

MVP

0.90

MPC

1.4

ClinPred

0.84

GERP RS

4.8

Varity_R

0.72

gMVP

0.62

Mutation Taster

=38/62

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

Age Distribution

Age Distribution

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

Other links and lift over