rs373192520

Variant summary

Our verdict is Likely benign. Variant got -3 ACMG points: 1P and 4B. PP3BS2

The NM_002691.4(POLD1):​c.632G>A​(p.Arg211His) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000564 in 1,597,058 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a pathogenic outcome for this variant. Variant has been reported in ClinVar as Conflicting classifications of pathogenicity (no stars).

Frequency

Genomes: 𝑓 0.000020 ( 0 hom., cov: 33)
Exomes 𝑓: 0.000060 ( 0 hom. )

Consequence

POLD1
NM_002691.4 missense

Scores

4
7
8

Clinical Significance

Conflicting classifications of pathogenicity criteria provided, conflicting classifications U:7B:1

Conservation

PhyloP100: 1.48
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 Likely_benign. Variant got -3 ACMG points.

PP3
MetaRNN computational evidence supports a deleterious effect, 0.759
BS2
High AC in GnomAdExome4 at 87 AD gene.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
POLD1NM_002691.4 linkc.632G>A p.Arg211His missense_variant Exon 6 of 27 ENST00000440232.7 NP_002682.2 P28340A0A024R4F4Q59FA0

Ensembl

Gene Transcript HGVSc HGVSp Effect Exon rank TSL MANE Protein Appris UniProt
POLD1ENST00000440232.7 linkc.632G>A p.Arg211His missense_variant Exon 6 of 27 1 NM_002691.4 ENSP00000406046.1 P28340

Frequencies

GnomAD3 genomes
AF:
0.0000197
AC:
3
AN:
152218
Hom.:
0
Cov.:
33
show subpopulations
Gnomad AFR
AF:
0.00
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.00
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:
0.0000441
Gnomad OTH
AF:
0.00
GnomAD3 exomes
AF:
0.0000719
AC:
17
AN:
236504
Hom.:
0
AF XY:
0.0000861
AC XY:
11
AN XY:
127804
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.0000609
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad SAS exome
AF:
0.000108
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.000113
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.0000602
AC:
87
AN:
1444840
Hom.:
0
Cov.:
34
AF XY:
0.0000558
AC XY:
40
AN XY:
717002
show subpopulations
Gnomad4 AFR exome
AF:
0.00
Gnomad4 AMR exome
AF:
0.0000465
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.00
Gnomad4 SAS exome
AF:
0.000155
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.0000617
Gnomad4 OTH exome
AF:
0.00
GnomAD4 genome
AF:
0.0000197
AC:
3
AN:
152218
Hom.:
0
Cov.:
33
AF XY:
0.0000403
AC XY:
3
AN XY:
74358
show subpopulations
Gnomad4 AFR
AF:
0.00
Gnomad4 AMR
AF:
0.00
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.00
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.0000441
Gnomad4 OTH
AF:
0.00
Alfa
AF:
0.0000966
Hom.:
0
Bravo
AF:
0.0000189
ESP6500AA
AF:
0.000227
AC:
1
ESP6500EA
AF:
0.000117
AC:
1
ExAC
AF:
0.0000908
AC:
11

ClinVar

Significance: Conflicting classifications of pathogenicity
Submissions summary: Uncertain:7Benign:1
Revision: criteria provided, conflicting classifications
LINK: link

Submissions by phenotype

not provided Uncertain:2Benign:1
Feb 12, 2019
Quest Diagnostics Nichols Institute San Juan Capistrano
Significance: Uncertain significance
Review Status: criteria provided, single submitter
Collection Method: clinical testing

- -

Oct 01, 2023
CeGaT Center for Human Genetics Tuebingen
Significance: Likely benign
Review Status: criteria provided, single submitter
Collection Method: clinical testing

POLD1: BP4 -

Nov 21, 2023
GeneDx
Significance: Uncertain significance
Review Status: criteria provided, single submitter
Collection Method: clinical testing

In silico analysis supports that this missense variant has a deleterious effect on protein structure/function; Has not been previously published as pathogenic or benign to our knowledge; This variant is associated with the following publications: (PMID: 26344056, 30279230, 31422818, 26438511) -

not specified Uncertain:2
Mar 04, 2025
Center for Genomic Medicine, Rigshospitalet, Copenhagen University Hospital
Significance: Uncertain significance
Review Status: criteria provided, single submitter
Collection Method: clinical testing

- -

Dec 28, 2016
Laboratory for Molecular Medicine, Mass General Brigham Personalized Medicine
Significance: Uncertain significance
Review Status: criteria provided, single submitter
Collection Method: clinical testing

The p.Arg211His variant in POLD1 has not been previously reported in individuals with colorectal cancer, but has been identified in 8/63688 of European chromoso mes by the Exome Aggregation Consortium (ExAC, http://exac.broadinstitute.org; d bSNP rs373192520). Computational prediction tools and conservation analysis sugg est that the p.Arg211His variant may impact the protein, though this information is not predictive enough to determine pathogenicity. In summary, the clinical s ignificance of the p.Arg211His variant is uncertain. -

Colorectal cancer, susceptibility to, 10 Uncertain:1
Jan 23, 2025
Labcorp Genetics (formerly Invitae), Labcorp
Significance: Uncertain significance
Review Status: criteria provided, single submitter
Collection Method: clinical testing

This sequence change replaces arginine, which is basic and polar, with histidine, which is basic and polar, at codon 211 of the POLD1 protein (p.Arg211His). This variant is present in population databases (rs373192520, gnomAD 0.01%). This variant has not been reported in the literature in individuals affected with POLD1-related conditions. ClinVar contains an entry for this variant (Variation ID: 439259). Invitae Evidence Modeling of protein sequence and biophysical properties (such as structural, functional, and spatial information, amino acid conservation, physicochemical variation, residue mobility, and thermodynamic stability) indicates that this missense variant is not expected to disrupt POLD1 protein function with a negative predictive value of 80%. In summary, the available evidence is currently insufficient to determine the role of this variant in disease. Therefore, it has been classified as a Variant of Uncertain Significance. -

Hereditary cancer-predisposing syndrome Uncertain:1
Dec 04, 2024
Ambry Genetics
Significance: Uncertain significance
Review Status: criteria provided, single submitter
Collection Method: clinical testing

The p.R211H variant (also known as c.632G>A), located in coding exon 5 of the POLD1 gene, results from a G to A substitution at nucleotide position 632. The arginine at codon 211 is replaced by histidine, an amino acid with highly similar properties. This amino acid position is highly conserved in available vertebrate species. In addition, this alteration is predicted to be tolerated by in silico analysis. Based on the available evidence, the clinical significance of this variant remains unclear. -

Colorectal cancer, susceptibility to, 10;C3715192:Mandibular hypoplasia-deafness-progeroid syndrome;C5935622:Immunodeficiency 120 Uncertain:1
May 14, 2024
Fulgent Genetics, Fulgent Genetics
Significance: Uncertain significance
Review Status: criteria provided, single submitter
Collection Method: clinical testing

- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.15
BayesDel_addAF
Benign
-0.23
T
BayesDel_noAF
Benign
-0.36
CADD
Pathogenic
27
DANN
Pathogenic
1.0
DEOGEN2
Uncertain
0.61
D;.;.;D
Eigen
Uncertain
0.48
Eigen_PC
Uncertain
0.41
FATHMM_MKL
Benign
0.74
D
LIST_S2
Pathogenic
0.99
.;.;D;D
M_CAP
Benign
0.035
D
MetaRNN
Pathogenic
0.76
D;D;D;D
MetaSVM
Benign
-1.1
T
MutationAssessor
Uncertain
2.1
M;.;.;M
PrimateAI
Uncertain
0.59
T
PROVEAN
Uncertain
-3.4
D;.;.;.
REVEL
Benign
0.21
Sift
Uncertain
0.0010
D;.;.;.
Sift4G
Pathogenic
0.0010
D;D;D;D
Polyphen
0.99
D;.;.;D
Vest4
0.60
MVP
0.74
MPC
0.82
ClinPred
0.45
T
GERP RS
4.2
RBP_binding_hub_radar
0.97
RBP_regulation_power_radar
3.2
Varity_R
0.71
gMVP
0.78

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: rs373192520; hg19: chr19-50905504; COSMIC: COSV70955449; COSMIC: COSV70955449; API