rs369613619

Variant summary

Our verdict is Benign. Variant got -10 ACMG points: 0P and 10B. BP4_StrongBP6BP7BS2

The NM_002691.4(POLD1):​c.3054G>A​(p.Val1018Val) variant causes a synonymous change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00113 in 1,539,184 control chromosomes in the GnomAD database, including 1 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Conflicting classifications of pathogenicity (no stars).

Frequency

Genomes: 𝑓 0.00097 ( 1 hom., cov: 34)
Exomes 𝑓: 0.0011 ( 0 hom. )

Consequence

POLD1
NM_002691.4 synonymous

Scores

2

Clinical Significance

Conflicting classifications of pathogenicity criteria provided, conflicting classifications U:1B:15

Conservation

PhyloP100: -0.680
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 -10 ACMG points.

BP4
Computational evidence support a benign effect (BayesDel_noAF=-0.69).
BP6
Variant 19-50416710-G-A is Benign according to our data. Variant chr19-50416710-G-A is described in ClinVar as [Conflicting_classifications_of_pathogenicity]. Clinvar id is 239329.We mark this variant Likely_benign, oryginal submissions are: {Likely_benign=9, Benign=3, Uncertain_significance=1}. Variant chr19-50416710-G-A is described in Lovd as [Benign].
BP7
Synonymous conserved (PhyloP=-0.68 with no splicing effect.
BS2
High AC in GnomAd4 at 148 AD gene.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
POLD1NM_002691.4 linkc.3054G>A p.Val1018Val 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.3054G>A p.Val1018Val synonymous_variant Exon 24 of 27 1 NM_002691.4 ENSP00000406046.1 P28340
ENSG00000142539ENST00000599632.1 linkc.261G>A p.Val87Val synonymous_variant Exon 3 of 10 5 ENSP00000473233.1 M0R3H8

Frequencies

GnomAD3 genomes
AF:
0.000973
AC:
148
AN:
152164
Hom.:
1
Cov.:
34
show subpopulations
Gnomad AFR
AF:
0.000362
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.00281
Gnomad ASJ
AF:
0.00
Gnomad EAS
AF:
0.00
Gnomad SAS
AF:
0.00
Gnomad FIN
AF:
0.000471
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.00121
Gnomad OTH
AF:
0.00144
GnomAD3 exomes
AF:
0.000502
AC:
69
AN:
137366
Hom.:
0
AF XY:
0.000414
AC XY:
31
AN XY:
74800
show subpopulations
Gnomad AFR exome
AF:
0.000143
Gnomad AMR exome
AF:
0.000735
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad SAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.000129
Gnomad NFE exome
AF:
0.000913
Gnomad OTH exome
AF:
0.000244
GnomAD4 exome
AF:
0.00114
AC:
1586
AN:
1386902
Hom.:
0
Cov.:
34
AF XY:
0.00108
AC XY:
738
AN XY:
684676
show subpopulations
Gnomad4 AFR exome
AF:
0.000158
Gnomad4 AMR exome
AF:
0.000726
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.00
Gnomad4 SAS exome
AF:
0.00
Gnomad4 FIN exome
AF:
0.00110
Gnomad4 NFE exome
AF:
0.00135
Gnomad4 OTH exome
AF:
0.00100
GnomAD4 genome
AF:
0.000972
AC:
148
AN:
152282
Hom.:
1
Cov.:
34
AF XY:
0.000980
AC XY:
73
AN XY:
74458
show subpopulations
Gnomad4 AFR
AF:
0.000361
Gnomad4 AMR
AF:
0.00281
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.00
Gnomad4 FIN
AF:
0.000471
Gnomad4 NFE
AF:
0.00121
Gnomad4 OTH
AF:
0.00142
Alfa
AF:
0.000803
Hom.:
0
Bravo
AF:
0.00125

ClinVar

Significance: Conflicting classifications of pathogenicity
Submissions summary: Uncertain:1Benign:15
Revision: criteria provided, conflicting classifications
LINK: link

Submissions by phenotype

not provided Uncertain:1Benign:6
May 23, 2017
Women's Health and Genetics/Laboratory Corporation of America, LabCorp
Significance: Benign
Review Status: criteria provided, single submitter
Collection Method: clinical testing

Variant summary: The POLD1 c.3054G>A (p.Val1018Val) variant involves the alteration of a non-conserved nucleotide causes a synonymous change and 4/5 splice prediction tools predict no significant impact on normal splicing. ESE finder predicts that this variant may alter ESE binding. However, these predictions have yet to be confirmed by functional studies. This variant was found in 89/139890 control chromosomes at a frequency of 0.0006362, which is approximately 45 times the estimated maximal expected allele frequency of a pathogenic POLD1 variant (0.0000142), suggesting this variant is likely a benign polymorphism. In addition, multiple clinical diagnostic laboratories/reputable databases classified this variant as benign/likely benign. Taken together, this variant is classified as Benign. -

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

POLD1: BP4, BP7 -

Jun 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: 25356899) -

-
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

- -

Oct 25, 2023
ARUP Laboratories, Molecular Genetics and Genomics, ARUP Laboratories
Significance: Likely benign
Review Status: criteria provided, single submitter
Collection Method: clinical testing

- -

Mar 02, 2018
Eurofins Ntd Llc (ga)
Significance: Uncertain significance
Review Status: criteria provided, single submitter
Collection Method: clinical testing

- -

Apr 21, 2017
PreventionGenetics, part of Exact Sciences
Significance: Likely benign
Review Status: criteria provided, single submitter
Collection Method: clinical testing

- -

not specified Benign:4
-
Clinical Genetics, Academic Medical Center
Significance: Benign
Review Status: no assertion criteria provided
Collection Method: clinical testing

- -

Aug 22, 2017
Quest Diagnostics Nichols Institute San Juan Capistrano
Significance: Benign
Review Status: criteria provided, single submitter
Collection Method: clinical testing

- -

May 08, 2017
Genetic Services Laboratory, University of Chicago
Significance: Likely 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

- -

Colorectal cancer, susceptibility to, 10 Benign:2
May 28, 2019
Mendelics
Significance: Likely benign
Review Status: criteria provided, single submitter
Collection Method: clinical testing

- -

Feb 02, 2025
Labcorp Genetics (formerly Invitae), Labcorp
Significance: Benign
Review Status: criteria provided, single submitter
Collection Method: clinical testing

- -

Hereditary cancer-predisposing syndrome Benign:2
Jul 23, 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. -

Dec 03, 2020
Sema4, Sema4
Significance: Likely benign
Review Status: criteria provided, single submitter
Collection Method: curation

- -

Polymerase proofreading-related adenomatous polyposis Benign:1
-
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.Val1018= variant was not identified in the literature. The variant was identified in dbSNP (ID: rs369613619) “With Likely benign allele”, and ClinVar (classified with conflicting interpretations of pathogenicity; submitters: benign by Invitae and 2 other laboratories, likely benign by GeneDx, Ambry Genetics, Prevention Genetics and 2 other laboratories, and uncertain significance by EGL Genetic Diagnostics (Eurofins Clinical Genetics)).The variant was identified in control databases in 89 of 162606 chromosomes at a frequency of 0.0005 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 3 of 15192 chromosomes (freq: 0.0002), Other in 2 of 4524 chromosomes (freq: 0.0004), Latino in 17 of 24616 chromosomes (freq: 0.0007), European Non-Finnish in 63 of 64570 chromosomes (freq: 0.001), European Finnish in 4 of 11144 chromosomes (freq: 0.0004), while not observed in the Ashkenazi Jewish, East Asian, and South Asian populations. The variant was also identified by our laboratory in 1 individual with pancreatic cancer, co-occurring with a pathogenic ATM variant (c.8418+5_8418+8del, r.spl?), increasing the likelihood the variant has little clinical significance. The p.Val1018= 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. The variant occurs outside of the splicing consensus sequence and 1 of 4 in silico or computational prediction software programs (SpliceSiteFinder, MaxEntScan, NNSPLICE, GeneSplicer) predict a greater than 10% difference in splicing; this is not very predictive of pathogenicity. 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. -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
BayesDel_noAF
Benign
-0.69
CADD
Benign
2.2
DANN
Benign
0.85
RBP_binding_hub_radar
0.0
RBP_regulation_power_radar
1.2

Splicing

Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
0.010
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: rs369613619; hg19: chr19-50919967; COSMIC: COSV54532173; COSMIC: COSV54532173; API