chr12-132643006-C-A

Variant summary

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

The NM_006231.4(POLE):​c.4552-10G>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 0.00357 in 1,582,118 control chromosomes in the GnomAD database, including 137 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Benign (★★).

Frequency

Genomes: 𝑓 0.017 ( 65 hom., cov: 33)
Exomes 𝑓: 0.0021 ( 72 hom. )

Consequence

POLE
NM_006231.4 splice_polypyrimidine_tract, intron

Scores

2
Splicing: ADA: 0.00001415
2

Clinical Significance

Benign criteria provided, multiple submitters, no conflicts B:15

Conservation

PhyloP100: -3.67
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]

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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=-0.87).
BP6
Variant 12-132643006-C-A is Benign according to our data. Variant chr12-132643006-C-A is described in ClinVar as [Benign]. Clinvar id is 380231.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars. Variant chr12-132643006-C-A is described in Lovd as [Benign].
BA1
GnomAd4 highest subpopulation (AFR) allele frequency at 95% confidence interval = 0.0555 is higher than 0.05.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
POLENM_006231.4 linkuse as main transcriptc.4552-10G>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.4552-10G>T splice_polypyrimidine_tract_variant, intron_variant 1 NM_006231.4 ENSP00000322570 P1

Frequencies

GnomAD3 genomes
AF:
0.0170
AC:
2592
AN:
152236
Hom.:
65
Cov.:
33
show subpopulations
Gnomad AFR
AF:
0.0573
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.00804
Gnomad ASJ
AF:
0.0121
Gnomad EAS
AF:
0.00
Gnomad SAS
AF:
0.000620
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00633
Gnomad NFE
AF:
0.000367
Gnomad OTH
AF:
0.0100
GnomAD3 exomes
AF:
0.00538
AC:
1172
AN:
217880
Hom.:
22
AF XY:
0.00402
AC XY:
477
AN XY:
118798
show subpopulations
Gnomad AFR exome
AF:
0.0590
Gnomad AMR exome
AF:
0.00391
Gnomad ASJ exome
AF:
0.0101
Gnomad EAS exome
AF:
0.00
Gnomad SAS exome
AF:
0.000388
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.000571
Gnomad OTH exome
AF:
0.00456
GnomAD4 exome
AF:
0.00213
AC:
3043
AN:
1429764
Hom.:
72
Cov.:
34
AF XY:
0.00195
AC XY:
1384
AN XY:
709104
show subpopulations
Gnomad4 AFR exome
AF:
0.0594
Gnomad4 AMR exome
AF:
0.00481
Gnomad4 ASJ exome
AF:
0.0109
Gnomad4 EAS exome
AF:
0.00
Gnomad4 SAS exome
AF:
0.000329
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.000329
Gnomad4 OTH exome
AF:
0.00477
GnomAD4 genome
AF:
0.0171
AC:
2601
AN:
152354
Hom.:
65
Cov.:
33
AF XY:
0.0164
AC XY:
1218
AN XY:
74492
show subpopulations
Gnomad4 AFR
AF:
0.0574
Gnomad4 AMR
AF:
0.00803
Gnomad4 ASJ
AF:
0.0121
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.000621
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.000367
Gnomad4 OTH
AF:
0.00992
Alfa
AF:
0.00240
Hom.:
2
Bravo
AF:
0.0199
Asia WGS
AF:
0.00375
AC:
13
AN:
3478

ClinVar

Significance: Benign
Submissions summary: Benign:15
Revision: criteria provided, multiple submitters, no conflicts
LINK: link

Submissions by phenotype

not specified Benign:7
Benign, criteria provided, single submitterclinical testingGeneDxNov 12, 2015This variant is considered likely benign or benign based on one or more of the following criteria: it is a conservative change, it occurs at a poorly conserved position in the protein, it is predicted to be benign by multiple in silico algorithms, and/or has population frequency not consistent with disease. -
Benign, criteria provided, single submitterclinical testingCenter for Genomic Medicine, Rigshospitalet, Copenhagen University HospitalAug 15, 2023- -
Benign, criteria provided, single submitterclinical testingQuest Diagnostics Nichols Institute San Juan CapistranoAug 09, 2016- -
Benign, no assertion criteria providedclinical testingGenome Diagnostics Laboratory, Amsterdam University Medical Center-- -
Benign, criteria provided, single submitterclinical testingPreventionGenetics, part of Exact SciencesNov 22, 2016- -
Benign, no assertion criteria providedclinical testingClinical Genetics, Academic Medical Center-- -
Benign, no assertion criteria providedclinical testingJoint Genome Diagnostic Labs from Nijmegen and Maastricht, Radboudumc and MUMC+-- -
not provided Benign:4
Benign, criteria provided, single submitterclinical testingWomen's Health and Genetics/Laboratory Corporation of America, LabCorpMay 19, 2016Variant summary: The POLE c.4552-10G>T variant involves the alteration of a non-conserved intronic nucleotide. One in silico tool predicts a benign outcome for this variant, and 3/5 Alamut algorithms predict no significant change to splicing. This variant was found in 676/99708 control chromosomes (13 homozygotes) at a frequency of 0.0067798, which is approximately 477 times the estimated maximal expected allele frequency of a pathogenic POLE variant (0.0000142), highly suggesting this variant is a benign polymorphism. The variant of interest has not, to our knowledge, been reported in affected individuals via publications and/or reputable databases/clinical diagnostic laboratories; nor evaluated for functional impact by in vivo/vitro studies. Taken together, this variant is classified as Benign. -
Benign, criteria provided, single submitterclinical testingLabcorp Genetics (formerly Invitae), LabcorpFeb 01, 2024- -
Benign, criteria provided, single submitterclinical testingARUP Laboratories, Molecular Genetics and Genomics, ARUP LaboratoriesNov 29, 2023- -
Benign, criteria provided, single submitternot providedBreakthrough Genomics, Breakthrough Genomics-- -
Colorectal cancer, susceptibility to, 12 Benign:1
Benign, criteria provided, single submitterclinical testingKCCC/NGS Laboratory, Kuwait Cancer Control CenterJul 07, 2023- -
Malignant tumor of breast Benign:1
Benign, no assertion criteria providedclinical testingDepartment of Pathology and Laboratory Medicine, Sinai Health System-The POLE c.4552-10G>T variant was identified in dbSNP (ID: rs5744946) “With Benign, Likely benign allele”, and ClinVar (classified benign by GeneDx, Invitae and 4 other laboratories). The variant was identified in control databases in 1652 (41 homozygous) of 244502 chromosomes at a frequency of 0.007 increasing the likelihood this could be a low frequency benign variant (Genome Aggregation Database Feb 27, 2017). The variant was observed in the following populations: African in 1355 (40 homozygous) of 22986 chromosomes (freq: 0.06), Other in 29 of 5608 chromosomes (freq: 0.005), Latino in 118 (1 homozygous) of 27424 chromosomes (freq: 0.004), European Non-Finnish in 59 of 113062 chromosomes (freq: 0.0005), Ashkenazi Jewish in 81 of 8140 chromosomes (freq: 0.01), and South Asian in 10 of 25926 chromosomes (freq: 0.0004) while not observed in the Eas Asian and European Finnish populations. In summary, based on the above information this variant meets our laboratory's criteria to be classified as benign. -
Hereditary cancer-predisposing syndrome Benign:1
Benign, criteria provided, single submitterclinical testingAmbry GeneticsMay 19, 2015This alteration is classified as benign based on a combination of the following: seen in unaffected individuals, population frequency, intact protein function, lack of segregation with disease, co-occurrence, RNA analysis, in silico models, amino acid conservation, lack of disease association in case-control studies, and/or the mechanism of disease or impacted region is inconsistent with a known cause of pathogenicity. -
Colorectal cancer, susceptibility to, 12;C3554576:Facial dysmorphism-immunodeficiency-livedo-short stature syndrome;C5193036:Intrauterine growth retardation, metaphyseal dysplasia, adrenal hypoplasia congenita, genital anomalies, and immunodeficiency Benign:1
Benign, criteria provided, single submitterclinical testingFulgent Genetics, Fulgent GeneticsJul 19, 2021- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
BayesDel_noAF
Benign
-0.87
CADD
Benign
0.0050
DANN
Benign
0.38

Splicing

Name
Calibrated prediction
Score
Prediction
dbscSNV1_ADA
Benign
0.000014
dbscSNV1_RF
Benign
0.0040
SpliceAI score (max)
0.020
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: rs5744946; hg19: chr12-133219592; COSMIC: COSV105885213; COSMIC: COSV105885213; API