rs1033667

Variant summary

Our verdict is Benign. Variant got -20 ACMG points: 0P and 20B. BP4_StrongBP6_Very_StrongBA1

The NM_007194.4(CHEK2):​c.319+91G>A variant causes a intron change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.277 in 1,259,652 control chromosomes in the GnomAD database, including 50,467 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Benign (★★).

Frequency

Genomes: 𝑓 0.29 ( 6926 hom., cov: 32)
Exomes 𝑓: 0.27 ( 43541 hom. )

Consequence

CHEK2
NM_007194.4 intron

Scores

2

Clinical Significance

Benign criteria provided, multiple submitters, no conflicts B:2

Conservation

PhyloP100: -0.497
Variant links:
Genes affected
CHEK2 (HGNC:16627): (checkpoint kinase 2) In response to DNA damage and replication blocks, cell cycle progression is halted through the control of critical cell cycle regulators. The protein encoded by this gene is a cell cycle checkpoint regulator and putative tumor suppressor. It contains a forkhead-associated protein interaction domain essential for activation in response to DNA damage and is rapidly phosphorylated in response to replication blocks and DNA damage. When activated, the encoded protein is known to inhibit CDC25C phosphatase, preventing entry into mitosis, and has been shown to stabilize the tumor suppressor protein p53, leading to cell cycle arrest in G1. In addition, this protein interacts with and phosphorylates BRCA1, allowing BRCA1 to restore survival after DNA damage. Mutations in this gene have been linked with Li-Fraumeni syndrome, a highly penetrant familial cancer phenotype usually associated with inherited mutations in TP53. Also, mutations in this gene are thought to confer a predisposition to sarcomas, breast cancer, and brain tumors. This nuclear protein is a member of the CDS1 subfamily of serine/threonine protein kinases. Several transcript variants encoding different isoforms have been found for this gene. [provided by RefSeq, Apr 2012]

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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 (BayesDel_noAF=-0.92).
BP6
Variant 22-28734312-C-T is Benign according to our data. Variant chr22-28734312-C-T is described in ClinVar as [Benign]. Clinvar id is 1292603.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.
BA1
GnomAd4 highest subpopulation (AFR) allele frequency at 95% confidence interval = 0.341 is higher than 0.05.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
CHEK2NM_007194.4 linkuse as main transcriptc.319+91G>A intron_variant ENST00000404276.6 NP_009125.1

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
CHEK2ENST00000404276.6 linkuse as main transcriptc.319+91G>A intron_variant 1 NM_007194.4 ENSP00000385747 P2O96017-1

Frequencies

GnomAD3 genomes
AF:
0.295
AC:
44765
AN:
151910
Hom.:
6910
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.346
Gnomad AMI
AF:
0.304
Gnomad AMR
AF:
0.339
Gnomad ASJ
AF:
0.177
Gnomad EAS
AF:
0.214
Gnomad SAS
AF:
0.160
Gnomad FIN
AF:
0.266
Gnomad MID
AF:
0.206
Gnomad NFE
AF:
0.281
Gnomad OTH
AF:
0.279
GnomAD4 exome
AF:
0.275
AC:
304485
AN:
1107624
Hom.:
43541
AF XY:
0.270
AC XY:
151736
AN XY:
561960
show subpopulations
Gnomad4 AFR exome
AF:
0.345
Gnomad4 AMR exome
AF:
0.319
Gnomad4 ASJ exome
AF:
0.172
Gnomad4 EAS exome
AF:
0.200
Gnomad4 SAS exome
AF:
0.174
Gnomad4 FIN exome
AF:
0.253
Gnomad4 NFE exome
AF:
0.288
Gnomad4 OTH exome
AF:
0.273
GnomAD4 genome
AF:
0.295
AC:
44817
AN:
152028
Hom.:
6926
Cov.:
32
AF XY:
0.292
AC XY:
21681
AN XY:
74302
show subpopulations
Gnomad4 AFR
AF:
0.346
Gnomad4 AMR
AF:
0.339
Gnomad4 ASJ
AF:
0.177
Gnomad4 EAS
AF:
0.214
Gnomad4 SAS
AF:
0.160
Gnomad4 FIN
AF:
0.266
Gnomad4 NFE
AF:
0.281
Gnomad4 OTH
AF:
0.284
Alfa
AF:
0.275
Hom.:
5918
Bravo
AF:
0.304
Asia WGS
AF:
0.190
AC:
658
AN:
3478

ClinVar

Significance: Benign
Submissions summary: Benign:2
Revision: criteria provided, multiple submitters, no conflicts
LINK: link

Submissions by phenotype

not provided Benign:2
Benign, criteria provided, single submitternot providedBreakthrough Genomics, Breakthrough Genomics-- -
Benign, criteria provided, single submitterclinical testingGeneDxMar 03, 2015- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
BayesDel_noAF
Benign
-0.92
CADD
Benign
1.4
DANN
Benign
0.34

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.

Other links and lift over

dbSNP: rs1033667; hg19: chr22-29130300; COSMIC: COSV60418297; COSMIC: COSV60418297; API