rs3218752

Variant summary

Our verdict is Benign. Variant got -17 ACMG points: 0P and 17B. BP4_StrongBP6_Very_StrongBP7BS2

The NM_002691.4(POLD1):​c.2967G>A​(p.Thr989Thr) variant causes a synonymous change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00272 in 1,563,834 control chromosomes in the GnomAD database, including 6 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Likely benign (★★).

Frequency

Genomes: 𝑓 0.0014 ( 0 hom., cov: 34)
Exomes 𝑓: 0.0029 ( 6 hom. )

Consequence

POLD1
NM_002691.4 synonymous

Scores

2

Clinical Significance

Benign/Likely benign criteria provided, multiple submitters, no conflicts B:19

Conservation

PhyloP100: -3.95
Variant links:
Genes affected
POLD1 (HGNC:9175): (DNA polymerase delta 1, catalytic subunit) This gene encodes the 125-kDa catalytic subunit of DNA polymerase delta. DNA polymerase delta possesses both polymerase and 3' to 5' exonuclease activity and plays a critical role in DNA replication and repair. Alternatively spliced transcript variants have been observed for this gene, and a pseudogene of this gene is located on the long arm of chromosome 6. [provided by RefSeq, Mar 2012]

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Benign. Variant got -17 ACMG points.

BP4
Computational evidence support a benign effect (BayesDel_noAF=-0.79).
BP6
Variant 19-50416623-G-A is Benign according to our data. Variant chr19-50416623-G-A is described in ClinVar as [Likely_benign]. Clinvar id is 220823.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars. Variant chr19-50416623-G-A is described in Lovd as [Likely_benign].
BP7
Synonymous conserved (PhyloP=-3.95 with no splicing effect.
BS2
High AC in GnomAd4 at 213 AD gene.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
POLD1NM_002691.4 linkc.2967G>A p.Thr989Thr synonymous_variant Exon 24 of 27 ENST00000440232.7 NP_002682.2 P28340A0A024R4F4Q59FA0

Ensembl

Gene Transcript HGVSc HGVSp Effect Exon rank TSL MANE Protein Appris UniProt
POLD1ENST00000440232.7 linkc.2967G>A p.Thr989Thr synonymous_variant Exon 24 of 27 1 NM_002691.4 ENSP00000406046.1 P28340
ENSG00000142539ENST00000599632.1 linkc.174G>A p.Thr58Thr synonymous_variant Exon 3 of 10 5 ENSP00000473233.1 M0R3H8

Frequencies

GnomAD3 genomes
AF:
0.00140
AC:
213
AN:
152168
Hom.:
0
Cov.:
34
show subpopulations
Gnomad AFR
AF:
0.000531
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.000262
Gnomad ASJ
AF:
0.00
Gnomad EAS
AF:
0.00
Gnomad SAS
AF:
0.00103
Gnomad FIN
AF:
0.000752
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.00256
Gnomad OTH
AF:
0.00
GnomAD3 exomes
AF:
0.00146
AC:
247
AN:
168900
Hom.:
0
AF XY:
0.00142
AC XY:
131
AN XY:
92250
show subpopulations
Gnomad AFR exome
AF:
0.000765
Gnomad AMR exome
AF:
0.000186
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad SAS exome
AF:
0.00123
Gnomad FIN exome
AF:
0.000512
Gnomad NFE exome
AF:
0.00274
Gnomad OTH exome
AF:
0.00108
GnomAD4 exome
AF:
0.00286
AC:
4033
AN:
1411548
Hom.:
6
Cov.:
34
AF XY:
0.00269
AC XY:
1880
AN XY:
698708
show subpopulations
Gnomad4 AFR exome
AF:
0.000527
Gnomad4 AMR exome
AF:
0.000210
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.00
Gnomad4 SAS exome
AF:
0.00124
Gnomad4 FIN exome
AF:
0.000614
Gnomad4 NFE exome
AF:
0.00345
Gnomad4 OTH exome
AF:
0.00205
GnomAD4 genome
AF:
0.00140
AC:
213
AN:
152286
Hom.:
0
Cov.:
34
AF XY:
0.00132
AC XY:
98
AN XY:
74456
show subpopulations
Gnomad4 AFR
AF:
0.000529
Gnomad4 AMR
AF:
0.000261
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.00104
Gnomad4 FIN
AF:
0.000752
Gnomad4 NFE
AF:
0.00256
Gnomad4 OTH
AF:
0.00
Alfa
AF:
0.00204
Hom.:
0
Bravo
AF:
0.00142

ClinVar

Significance: Benign/Likely benign
Submissions summary: Benign:19
Revision: criteria provided, multiple submitters, no conflicts
LINK: link

Submissions by phenotype

not provided Benign:7
Sep 14, 2021
GeneDx
Significance: Likely benign
Review Status: criteria provided, single submitter
Collection Method: clinical testing

This variant is associated with the following publications: (PMID: 27923066) -

-
Department of Pathology and Laboratory Medicine, Sinai Health System
Significance: Likely benign
Review Status: no assertion criteria provided
Collection Method: clinical testing

The POLD1 p.Thr989Thr variant was not identified in the literature nor was it identified in the MutDB database. The variant was identified in dbSNP (ID: rs3218752 as “With Likely benign, other allele”), ClinVar (classified as benign by Invitae and Quest Diagnostics Nichols Institute San Juan Capistrano and as likely benign by GeneDx, Ambry Genetics and True Health Diagnostics), and Cosmic (1x in adenocarcinoma of the lung). The variant was identified in control databases in 275 of 194958 chromosomes at a frequency of 0.001, 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: European Non-Finnish in 218 of 83548 chromosomes (freq: 0.003), African in 11 of 17348 chromosomes (freq: 0.0006), Other in 5 of 5074 chromosomes (freq: 0.001), Latino in 4 of 26990 chromosomes (freq: 0.0001), Finnish in 8 of 15338 chromosomes (freq: 0.0005), and South Asian in 29 of 24442 chromosomes (freq: 0.001), while it not observed in the Ashkenazi Jewish or East Asian populations. The p.Thr989= variant is not expected to have clinical significance because it does not result in a change of amino acid and is not located in a known consensus splice site. In addition, in silico or computational prediction software programs (SpliceSiteFinder, MaxEntScan, NNSPLICE, GeneSplicer, HumanSpliceFinder) do not predict a difference in splicing. The variant occurs outside of the splicing consensus sequence and 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. -

Nov 09, 2023
ARUP Laboratories, Molecular Genetics and Genomics, ARUP Laboratories
Significance: Benign
Review Status: criteria provided, single submitter
Collection Method: clinical testing

- -

Sep 01, 2024
CeGaT Center for Human Genetics Tuebingen
Significance: Likely benign
Review Status: criteria provided, single submitter
Collection Method: clinical testing

POLD1: BP4, BP7, BS1 -

-
Clinical Genetics, Academic Medical Center
Significance: Likely benign
Review Status: no assertion criteria provided
Collection Method: clinical testing

- -

-
Genome Diagnostics Laboratory, Amsterdam University Medical Center
Significance: Likely benign
Review Status: no assertion criteria provided
Collection Method: clinical testing

- -

-
Clinical Genetics DNA and cytogenetics Diagnostics Lab, Erasmus MC, Erasmus Medical Center
Significance: Likely benign
Review Status: no assertion criteria provided
Collection Method: clinical testing

- -

not specified Benign:6
Nov 06, 2018
Genetic Services Laboratory, University of Chicago
Significance: Benign
Review Status: criteria provided, single submitter
Collection Method: clinical testing

- -

Mar 15, 2018
Eurofins Ntd Llc (ga)
Significance: Likely benign
Review Status: criteria provided, single submitter
Collection Method: clinical testing

- -

Oct 22, 2022
Women's Health and Genetics/Laboratory Corporation of America, LabCorp
Significance: Benign
Review Status: criteria provided, single submitter
Collection Method: clinical testing

- -

Mar 04, 2025
Center for Genomic Medicine, Rigshospitalet, Copenhagen University Hospital
Significance: Likely benign
Review Status: criteria provided, single submitter
Collection Method: clinical testing

- -

Jun 06, 2017
Quest Diagnostics Nichols Institute San Juan Capistrano
Significance: Benign
Review Status: criteria provided, single submitter
Collection Method: clinical testing

- -

Mar 09, 2017
PreventionGenetics, part of Exact Sciences
Significance: Benign
Review Status: criteria provided, single submitter
Collection Method: clinical testing

- -

Colorectal cancer, susceptibility to, 10 Benign:3
Jul 07, 2023
KCCC/NGS Laboratory, Kuwait Cancer Control Center
Significance: Benign
Review Status: criteria provided, single submitter
Collection Method: clinical testing

- -

Feb 04, 2025
Labcorp Genetics (formerly Invitae), Labcorp
Significance: Benign
Review Status: criteria provided, single submitter
Collection Method: clinical testing

- -

May 28, 2019
Mendelics
Significance: Likely benign
Review Status: criteria provided, single submitter
Collection Method: clinical testing

- -

Hereditary cancer-predisposing syndrome Benign:3
Jun 05, 2015
Ambry Genetics
Significance: Likely benign
Review Status: criteria provided, single submitter
Collection Method: clinical testing

This alteration is classified as likely 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. -

Oct 06, 2020
Sema4, Sema4
Significance: Benign
Review Status: criteria provided, single submitter
Collection Method: curation

- -

Oct 10, 2017
True Health Diagnostics
Significance: Likely benign
Review Status: no assertion criteria provided
Collection Method: clinical testing

- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
BayesDel_noAF
Benign
-0.79
CADD
Benign
0.11
DANN
Benign
0.85
RBP_binding_hub_radar
0.0
RBP_regulation_power_radar
1.8

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: rs3218752; hg19: chr19-50919880; COSMIC: COSV54532340; COSMIC: COSV54532340; API