chr12-132673283-G-A

Variant summary

Our verdict is Benign. Variant got -20 ACMG points: 0P and 20B. BP4_StrongBP6_Very_StrongBS1BS2

The NM_006231.4(POLE):​c.1360-6C>T variant causes a splice region, splice polypyrimidine tract, intron change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000239 in 1,574,938 control chromosomes in the GnomAD database, including 3 homozygotes. In-silico tool predicts a benign outcome for this variant. 3/3 splice prediction tools predict no significant impact on normal splicing. Variant has been reported in ClinVar as Likely benign (★★).

Frequency

Genomes: 𝑓 0.00095 ( 0 hom., cov: 33)
Exomes 𝑓: 0.00016 ( 3 hom. )

Consequence

POLE
NM_006231.4 splice_region, splice_polypyrimidine_tract, intron

Scores

2
Splicing: ADA: 0.00001587
2

Clinical Significance

Benign/Likely benign criteria provided, multiple submitters, no conflicts B:10

Conservation

PhyloP100: 0.128
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 -20 ACMG points.

BP4
Computational evidence support a benign effect (BayesDel_noAF=-0.8).
BP6
Variant 12-132673283-G-A is Benign according to our data. Variant chr12-132673283-G-A is described in ClinVar as [Likely_benign]. Clinvar id is 240389.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars. Variant chr12-132673283-G-A is described in Lovd as [Likely_benign].
BS1
Variant frequency is greater than expected in population afr. gnomad4 allele frequency = 0.000945 (144/152358) while in subpopulation AFR AF= 0.00301 (125/41584). AF 95% confidence interval is 0.00258. There are 0 homozygotes in gnomad4. There are 60 alleles in male gnomad4 subpopulation. Median coverage is 33. This position pass quality control queck.
BS2
High Homozygotes in GnomAdExome4 at 3 AD,AR gene

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
POLENM_006231.4 linkuse as main transcriptc.1360-6C>T splice_region_variant, 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.1360-6C>T splice_region_variant, splice_polypyrimidine_tract_variant, intron_variant 1 NM_006231.4 ENSP00000322570 P1

Frequencies

GnomAD3 genomes
AF:
0.000939
AC:
143
AN:
152240
Hom.:
0
Cov.:
33
show subpopulations
Gnomad AFR
AF:
0.00299
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.00105
Gnomad ASJ
AF:
0.00
Gnomad EAS
AF:
0.00
Gnomad SAS
AF:
0.00
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00633
Gnomad NFE
AF:
0.00
Gnomad OTH
AF:
0.000478
GnomAD3 exomes
AF:
0.000282
AC:
71
AN:
251338
Hom.:
0
AF XY:
0.000265
AC XY:
36
AN XY:
135848
show subpopulations
Gnomad AFR exome
AF:
0.00320
Gnomad AMR exome
AF:
0.000289
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad SAS exome
AF:
0.0000653
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.0000264
Gnomad OTH exome
AF:
0.000652
GnomAD4 exome
AF:
0.000163
AC:
232
AN:
1422580
Hom.:
3
Cov.:
26
AF XY:
0.000180
AC XY:
128
AN XY:
710198
show subpopulations
Gnomad4 AFR exome
AF:
0.00420
Gnomad4 AMR exome
AF:
0.000269
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.00
Gnomad4 SAS exome
AF:
0.000152
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.0000177
Gnomad4 OTH exome
AF:
0.000661
GnomAD4 genome
AF:
0.000945
AC:
144
AN:
152358
Hom.:
0
Cov.:
33
AF XY:
0.000805
AC XY:
60
AN XY:
74510
show subpopulations
Gnomad4 AFR
AF:
0.00301
Gnomad4 AMR
AF:
0.00104
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.00
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.00
Gnomad4 OTH
AF:
0.000473
Alfa
AF:
0.000598
Hom.:
0
Bravo
AF:
0.00100
Asia WGS
AF:
0.000577
AC:
2
AN:
3478
EpiCase
AF:
0.0000545
EpiControl
AF:
0.0000593

ClinVar

Significance: Benign/Likely benign
Submissions summary: Benign:10
Revision: criteria provided, multiple submitters, no conflicts
LINK: link

Submissions by phenotype

not provided Benign:7
Likely benign, criteria provided, single submitterclinical testingGeneDxJun 21, 2021- -
Likely benign, no assertion criteria providedclinical testingJoint Genome Diagnostic Labs from Nijmegen and Maastricht, Radboudumc and MUMC+-- -
Likely benign, no assertion criteria providedclinical testingGenome Diagnostics Laboratory, University Medical Center Utrecht-- -
Benign, criteria provided, single submitterclinical testingQuest Diagnostics Nichols Institute San Juan CapistranoOct 21, 2022- -
Benign, criteria provided, single submitterclinical testingLabcorp Genetics (formerly Invitae), LabcorpFeb 01, 2024- -
Likely benign, criteria provided, single submitterclinical testingCeGaT Center for Human Genetics TuebingenAug 01, 2024POLE: BP4, BS1 -
Likely benign, criteria provided, single submitterclinical testingPreventionGenetics, part of Exact SciencesNov 02, 2016- -
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
Benign, criteria provided, single submitterclinical testingKCCC/NGS Laboratory, Kuwait Cancer Control CenterJul 07, 2023- -
Hereditary cancer-predisposing syndrome Benign:1
Benign, criteria provided, single submittercurationSema4, Sema4Aug 06, 2020- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
BayesDel_noAF
Benign
-0.80
CADD
Benign
7.0
DANN
Benign
0.58

Splicing

Name
Calibrated prediction
Score
Prediction
dbscSNV1_ADA
Benign
0.000016
dbscSNV1_RF
Benign
0.030
SpliceAI score (max)
0.15
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: rs139836643; hg19: chr12-133249869; API