chr11-125633216-C-G

Variant names:

• chr11-125633216-C-G
• rs369248914
• NM_001114122.3:c.478C>G

Variant summary

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

The NM_001114122.3(CHEK1):​c.478C>G​(p.Arg160Gly) variant causes a missense change. The variant was absent in control chromosomes in GnomAD project. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar. Another variant affecting the same amino acid position, but resulting in a different missense (i.e. R160C) has been classified as Uncertain significance.

• Frequency: Genomes: not found (cov: 32)
• Consequence: CHEK1 NM_001114122.3 missense
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: 4.64
• Publications: 0 publications found

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

ACMG classification

Our verdict: Uncertain_significance. The variant received 2 ACMG points.

• PM2: Very rare variant in population databases, with high coverage

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_001114122.3. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Selected	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	CHEK1	NM_001114122.3	MANE Select	c.478C>G	p.Arg160Gly	missense	Exon 6 of 13	NP_001107594.1
	CHEK1	NM_001114121.2		c.478C>G	p.Arg160Gly	missense	Exon 6 of 14	NP_001107593.1
	CHEK1	NM_001274.5		c.478C>G	p.Arg160Gly	missense	Exon 6 of 13	NP_001265.2

Ensembl Transcripts

Selected	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	CHEK1	ENST00000438015.7	TSL:5 MANE Select	c.478C>G	p.Arg160Gly	missense	Exon 6 of 13	ENSP00000388648.1
	CHEK1	ENST00000427383.6	TSL:1	c.526C>G	p.Arg176Gly	missense	Exon 5 of 12	ENSP00000391090.2
	CHEK1	ENST00000428830.6	TSL:1	c.478C>G	p.Arg160Gly	missense	Exon 6 of 14	ENSP00000412504.2

Frequencies

GnomAD3 genomes Cov.: 32

GnomAD4 exome Cov.: 30

GnomAD4 genome Cov.: 32

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.9

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Uncertain	0.50
BayesDel_addAF	Uncertain	0.13	D
BayesDel_noAF	Uncertain	-0.060
CADD	Pathogenic	26
DANN	Uncertain	1.0
DEOGEN2	Benign	0.26	T
Eigen	Benign	0.11
Eigen_PC	Uncertain	0.24
FATHMM_MKL	Pathogenic	0.97	D
LIST_S2	Uncertain	0.96	D
M_CAP	Benign	0.022	T
MetaRNN	Uncertain	0.52	D
MetaSVM	Benign	-0.89	T
MutationAssessor	Benign	1.1	L
PhyloP100		4.6
PrimateAI	Uncertain	0.69	T
PROVEAN	Uncertain	-4.1	D
REVEL	Uncertain	0.32
Sift	Uncertain	0.012	D
Sift4G	Benign	0.061	T
Polyphen		0.86	P
Vest4		0.61
MutPred		0.55		Loss of MoRF binding (P = 0.0694)
MVP		0.84
MPC		1.0
ClinPred		0.99	D
GERP RS		4.8
Varity_R		0.77
gMVP		0.62
Mutation Taster		=37/63	disease causing

Splicing

Name	Calibrated prediction	Score	Prediction
SpliceAI score (max)		0.030		Details are displayed if max score is > 0.2

Find out detailed SpliceAI scores and Pangolin per-transcript scores at spliceailookup.broadinstitute.org

Other links and lift over

dbSNP: rs369248914; hg19: chr11-125503111;