12-132661167-GAA-G

Variant summary

Our verdict is Benign. Variant got -12 ACMG points: 0P and 12B. BP6_Very_StrongBS1

The NM_006231.4(POLE):​c.2865-5_2865-4delTT variant causes a splice region, intron change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00462 in 1,332,700 control chromosomes in the GnomAD database, with no homozygous occurrence. 1/1 splice prediction tools predict no significant impact on normal splicing. Variant has been reported in ClinVar as Likely benign (★★).

Frequency

Genomes: 𝑓 0.000052 ( 0 hom., cov: 31)
Exomes 𝑓: 0.0051 ( 0 hom. )

Consequence

POLE
NM_006231.4 splice_region, intron

Scores

Not classified

Clinical Significance

Benign/Likely benign criteria provided, multiple submitters, no conflicts U:1B:6

Conservation

PhyloP100: 0.200
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.

BP6
Variant 12-132661167-GAA-G is Benign according to our data. Variant chr12-132661167-GAA-G is described in ClinVar as [Likely_benign]. Clinvar id is 548827.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars. Variant chr12-132661167-GAA-G is described in Lovd as [Likely_benign]. Variant chr12-132661167-GAA-G is described in Lovd as [Benign].
BS1
Variant frequency is greater than expected in population amr. gnomad4_exome allele frequency = 0.00513 (6144/1198432) while in subpopulation AMR AF= 0.0162 (485/30014). AF 95% confidence interval is 0.015. There are 0 homozygotes in gnomad4_exome. There are 3262 alleles in male gnomad4_exome subpopulation. This position pass quality control queck.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
POLENM_006231.4 linkuse as main transcriptc.2865-5_2865-4delTT splice_region_variant, intron_variant ENST00000320574.10 NP_006222.2 Q07864

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
POLEENST00000320574.10 linkuse as main transcriptc.2865-5_2865-4delTT splice_region_variant, intron_variant 1 NM_006231.4 ENSP00000322570.5 Q07864

Frequencies

GnomAD3 genomes
AF:
0.0000521
AC:
7
AN:
134244
Hom.:
0
Cov.:
31
show subpopulations
Gnomad AFR
AF:
0.00
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.000369
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:
0.0000323
Gnomad OTH
AF:
0.00
GnomAD4 exome
AF:
0.00513
AC:
6144
AN:
1198432
Hom.:
0
AF XY:
0.00549
AC XY:
3262
AN XY:
594378
show subpopulations
Gnomad4 AFR exome
AF:
0.00397
Gnomad4 AMR exome
AF:
0.0162
Gnomad4 ASJ exome
AF:
0.00901
Gnomad4 EAS exome
AF:
0.00423
Gnomad4 SAS exome
AF:
0.0115
Gnomad4 FIN exome
AF:
0.00915
Gnomad4 NFE exome
AF:
0.00413
Gnomad4 OTH exome
AF:
0.00512
GnomAD4 genome
AF:
0.0000521
AC:
7
AN:
134268
Hom.:
0
Cov.:
31
AF XY:
0.0000464
AC XY:
3
AN XY:
64622
show subpopulations
Gnomad4 AFR
AF:
0.00
Gnomad4 AMR
AF:
0.000369
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.00
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.0000323
Gnomad4 OTH
AF:
0.00

ClinVar

Significance: Benign/Likely benign
Submissions summary: Uncertain:1Benign:6
Revision: criteria provided, multiple submitters, no conflicts
LINK: link

Submissions by phenotype

not specified Benign:2
Likely benign, criteria provided, single submitterclinical testingCenter for Genomic Medicine, Rigshospitalet, Copenhagen University HospitalAug 15, 2023- -
Benign, no assertion criteria providedclinical testingClinical Genetics, Academic Medical Center-- -
Carcinoma of colon Uncertain:1
Uncertain significance, no assertion criteria providedclinical testingDepartment of Pathology and Laboratory Medicine, Sinai Health System-The POLE c.2865-5_2865-4delTT variant was not identified in the literature nor was it identified in the ClinVar or MutDB databases. The variant was identified in dbSNP (ID: rs767764560) as "NA", and the Cosmic database (1x, confirmed somatic, in melanoma of the eye). The variant was not identified in the control databases: the 1000 Genomes Project, the NHLBI GO Exome Sequencing Project, the Exome Aggregation Consortium (August 8th 2016), or the Genome Aggregation Database (Feb 27, 2017). The c.2865-5_2865-4delTT 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. In silico or computational prediction software programs (SpliceSiteFinder, MaxEntScan, NNSPLICE, GeneSplicer, HumanSpliceFinder) 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. This variant is classified as a variant of uncertain significance. -
Colorectal cancer, susceptibility to, 12 Benign:1
Benign, criteria provided, single submitterclinical testingCounsylDec 21, 2017- -
not provided Benign:1
Likely benign, no assertion criteria providedclinical testingGenome Diagnostics Laboratory, Amsterdam University Medical Center-- -
Hereditary cancer-predisposing syndrome Benign:1
Benign, criteria provided, single submitterclinical testingAmbry GeneticsMar 07, 2024This 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
Likely benign, criteria provided, single submitterclinical testingFulgent Genetics, Fulgent GeneticsSep 23, 2021- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction

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: rs369732588; hg19: chr12-133237753; API