12-132679661-G-A

Variant summary

Our verdict is Benign. Variant got -12 ACMG points: 0P and 12B. BP4_StrongBP6_Very_Strong

The NM_006231.4(POLE):​c.424-10C>T variant causes a splice polypyrimidine tract, intron change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000274 in 1,604,470 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Likely benign (★★).

Frequency

Genomes: 𝑓 0.000026 ( 0 hom., cov: 33)
Exomes 𝑓: 0.000028 ( 0 hom. )

Consequence

POLE
NM_006231.4 splice_polypyrimidine_tract, intron

Scores

2
Splicing: ADA: 0.00001352
2

Clinical Significance

Likely benign criteria provided, multiple submitters, no conflicts B:6

Conservation

PhyloP100: -0.149
Variant links:
Genes affected
POLE (HGNC:9177): (DNA polymerase epsilon, catalytic subunit) This gene encodes the catalytic subunit of DNA polymerase epsilon. The enzyme is involved in DNA repair and chromosomal DNA replication. Mutations in this gene have been associated with colorectal cancer 12 and facial dysmorphism, immunodeficiency, livedo, and short stature. [provided by RefSeq, Sep 2013]

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Benign. Variant got -12 ACMG points.

BP4
Computational evidence support a benign effect (BayesDel_noAF=-0.84).
BP6
Variant 12-132679661-G-A is Benign according to our data. Variant chr12-132679661-G-A is described in ClinVar as [Likely_benign]. Clinvar id is 385456.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars. Variant chr12-132679661-G-A is described in Lovd as [Benign].

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
POLENM_006231.4 linkuse as main transcriptc.424-10C>T splice_polypyrimidine_tract_variant, intron_variant ENST00000320574.10 NP_006222.2

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
POLEENST00000320574.10 linkuse as main transcriptc.424-10C>T splice_polypyrimidine_tract_variant, intron_variant 1 NM_006231.4 ENSP00000322570 P1

Frequencies

GnomAD3 genomes
AF:
0.0000263
AC:
4
AN:
152206
Hom.:
0
Cov.:
33
show subpopulations
Gnomad AFR
AF:
0.0000483
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:
0.0000294
Gnomad OTH
AF:
0.00
GnomAD3 exomes
AF:
0.0000479
AC:
12
AN:
250690
Hom.:
0
AF XY:
0.0000812
AC XY:
11
AN XY:
135414
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.0000290
Gnomad ASJ exome
AF:
0.0000996
Gnomad EAS exome
AF:
0.00
Gnomad SAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.0000884
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.0000275
AC:
40
AN:
1452264
Hom.:
0
Cov.:
31
AF XY:
0.0000306
AC XY:
22
AN XY:
720086
show subpopulations
Gnomad4 AFR exome
AF:
0.00
Gnomad4 AMR exome
AF:
0.0000224
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.0000254
Gnomad4 SAS exome
AF:
0.0000116
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.0000317
Gnomad4 OTH exome
AF:
0.0000334
GnomAD4 genome
AF:
0.0000263
AC:
4
AN:
152206
Hom.:
0
Cov.:
33
AF XY:
0.0000403
AC XY:
3
AN XY:
74362
show subpopulations
Gnomad4 AFR
AF:
0.0000483
Gnomad4 AMR
AF:
0.00
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.00
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.0000294
Gnomad4 OTH
AF:
0.00
Alfa
AF:
0.0000712
Hom.:
0
Bravo
AF:
0.0000302

ClinVar

Significance: Likely benign
Submissions summary: Benign:6
Revision: criteria provided, multiple submitters, no conflicts
LINK: link

Submissions by phenotype

not provided Benign:2
Likely benign, criteria provided, single submitterclinical testingGeneDxNov 26, 2019- -
Likely benign, criteria provided, single submitterclinical testingLabcorp Genetics (formerly Invitae), LabcorpJan 16, 2024- -
not specified Benign:1
Likely benign, criteria provided, single submitterclinical testingCenter for Genomic Medicine, Rigshospitalet, Copenhagen University HospitalAug 15, 2023- -
Colorectal cancer, susceptibility to, 12 Benign:1
Likely benign, criteria provided, single submitterclinical testingCounsylMay 29, 2018- -
Polymerase proofreading-related adenomatous polyposis Benign:1
Likely benign, no assertion criteria providedclinical testingDepartment of Pathology and Laboratory Medicine, Sinai Health System-The POLE c.424-10C>T variant was not identified in the literature. The variant was identified in dbSNP (ID: rs748433747) as "With Likely benign allele", ClinVar (classified as likely benign by Invitae, GeneDx and Counsyl), and LOVD 3.0 (1x as benign). The variant was identified in control databases in 11 of 245386 chromosomes at a frequency of 0.00005 (Genome Aggregation Database Feb 27, 2017). The variant was observed in the following populations: Latino in 1 of 33552 chromosomes (freq: 0.00003), European in 10 of 111028 chromosomes (freq: 0.00009), while the variant was not observed in the African, Other, Ashkenazi Jewish, East Asian, European Finnish, and South Asian populations. The c.424-10C>T variant is located in the 3' splice region but does not affect the invariant -1 and -2 positions. However, positions -3 and -5 to -12 are part of the splicing consensus sequence and variants involving these positions sometimes affect splicing. However, in silico or computational prediction software programs (SpliceSiteFinder, MaxEntScan, NNSPLICE, GeneSplicer) do not predict a difference in splicing. In summary, based on the above information the clinical significance of this variant cannot be determined with certainty at this time although we would lean towards a more benign role for this variant. This variant is classified as likely benign. -
POLE-related disorder Benign:1
Likely benign, no assertion criteria providedclinical testingPreventionGenetics, part of Exact SciencesMay 13, 2022This variant is classified as likely benign based on ACMG/AMP sequence variant interpretation guidelines (Richards et al. 2015 PMID: 25741868, with internal and published modifications). -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
BayesDel_noAF
Benign
-0.84
CADD
Benign
0.81
DANN
Benign
0.63

Splicing

Name
Calibrated prediction
Score
Prediction
dbscSNV1_ADA
Benign
0.000014
dbscSNV1_RF
Benign
0.0
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: rs748433747; hg19: chr12-133256247; COSMIC: COSV100266934; COSMIC: COSV100266934; API