rs367766963

Variant summary

Our verdict is Likely benign. The variant received -5 ACMG points: 0P and 5B. BP4_StrongBP6

The NM_002691.4(POLD1):​c.3121-14G>A variant causes a intron change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000132 in 1,586,784 control chromosomes in the GnomAD database, with no homozygous occurrence. 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 0.00030 ( 0 hom., cov: 34)
Exomes 𝑓: 0.00011 ( 0 hom. )

Consequence

POLD1
NM_002691.4 intron

Scores

2

Clinical Significance

Conflicting classifications of pathogenicity criteria provided, conflicting classifications U:1B:5

Conservation

PhyloP100: 0.0280

Publications

0 publications found
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]
POLD1 Gene-Disease associations (from GenCC):
  • POLD1-related polyposis and colorectal cancer syndrome
    Inheritance: AD Classification: DEFINITIVE Submitted by: ClinGen
  • colorectal cancer, susceptibility to, 10
    Inheritance: AD Classification: STRONG, MODERATE Submitted by: Labcorp Genetics (formerly Invitae), Ambry Genetics, Genomics England PanelApp
  • mandibular hypoplasia-deafness-progeroid syndrome
    Inheritance: AD, AR Classification: STRONG, SUPPORTIVE, LIMITED Submitted by: Labcorp Genetics (formerly Invitae), PanelApp Australia, Genomics England PanelApp, Ambry Genetics, Orphanet, G2P
  • Polymerase proofreading-related adenomatous polyposis
    Inheritance: AD Classification: SUPPORTIVE Submitted by: Orphanet
  • immunodeficiency 120
    Inheritance: AR Classification: LIMITED Submitted by: Ambry Genetics
  • non-severe combined immunodeficiency due to polymerase delta deficiency
    Inheritance: AR Classification: LIMITED Submitted by: ClinGen

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Likely_benign. The variant received -5 ACMG points.

BP4
Computational evidence support a benign effect (BayesDel_noAF=-0.8).
BP6
Variant 19-50417158-G-A is Benign according to our data. Variant chr19-50417158-G-A is described in ClinVar as Conflicting_classifications_of_pathogenicity. ClinVar VariationId is 372064.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
POLD1NM_002691.4 linkc.3121-14G>A intron_variant Intron 25 of 26 ENST00000440232.7 NP_002682.2 P28340A0A024R4F4Q59FA0

Ensembl

Gene Transcript HGVSc HGVSp Effect Exon rank TSL MANE Protein Appris UniProt
POLD1ENST00000440232.7 linkc.3121-14G>A intron_variant Intron 25 of 26 1 NM_002691.4 ENSP00000406046.1 P28340
ENSG00000142539ENST00000599632.1 linkc.328-14G>A intron_variant Intron 4 of 9 5 ENSP00000473233.1 M0R3H8

Frequencies

GnomAD3 genomes
AF:
0.000283
AC:
43
AN:
152074
Hom.:
0
Cov.:
34
show subpopulations
Gnomad AFR
AF:
0.000918
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.000131
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
GnomAD2 exomes
AF:
0.000135
AC:
28
AN:
206784
AF XY:
0.000116
show subpopulations
Gnomad AFR exome
AF:
0.000645
Gnomad AMR exome
AF:
0.000263
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.000128
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.0000998
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.000114
AC:
164
AN:
1434590
Hom.:
0
Cov.:
33
AF XY:
0.000115
AC XY:
82
AN XY:
711624
show subpopulations
African (AFR)
AF:
0.000607
AC:
20
AN:
32928
American (AMR)
AF:
0.000219
AC:
9
AN:
41070
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
25602
East Asian (EAS)
AF:
0.0000524
AC:
2
AN:
38166
South Asian (SAS)
AF:
0.0000120
AC:
1
AN:
83094
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
49982
Middle Eastern (MID)
AF:
0.000176
AC:
1
AN:
5670
European-Non Finnish (NFE)
AF:
0.000115
AC:
126
AN:
1098846
Other (OTH)
AF:
0.0000844
AC:
5
AN:
59232
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.495
Heterozygous variant carriers
0
11
22
32
43
54
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Exome Het
Variant carriers
0
10
20
30
40
50
<30
30-35
35-40
40-45
45-50
50-55
55-60
60-65
65-70
70-75
75-80
>80
Age
GnomAD4 genome
AF:
0.000302
AC:
46
AN:
152194
Hom.:
0
Cov.:
34
AF XY:
0.000296
AC XY:
22
AN XY:
74426
show subpopulations
African (AFR)
AF:
0.000987
AC:
41
AN:
41538
American (AMR)
AF:
0.000131
AC:
2
AN:
15304
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
3468
East Asian (EAS)
AF:
0.00
AC:
0
AN:
5160
South Asian (SAS)
AF:
0.00
AC:
0
AN:
4824
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
10620
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
294
European-Non Finnish (NFE)
AF:
0.0000441
AC:
3
AN:
67964
Other (OTH)
AF:
0.00
AC:
0
AN:
2114
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.475
Heterozygous variant carriers
0
2
4
6
8
10
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Genome Het
Variant carriers
0
2
4
6
8
10
<30
30-35
35-40
40-45
45-50
50-55
55-60
60-65
65-70
70-75
75-80
>80
Age
Alfa
AF:
0.000260
Hom.:
0
Bravo
AF:
0.000291
Asia WGS
AF:
0.000289
AC:
1
AN:
3478

ClinVar

Significance: Conflicting classifications of pathogenicity
Submissions summary: Uncertain:1Benign:5
Revision: criteria provided, conflicting classifications
LINK: link

Submissions by phenotype

Colorectal cancer, susceptibility to, 10 Benign:2
Nov 07, 2016
Counsyl
Significance:Likely benign
Review Status:no assertion criteria provided
Collection Method:clinical testing

This submission and the accompanying classification are no longer maintained by the submitter. For more information on current observations and classification, please contact variantquestions@myriad.com. -

Jan 23, 2025
Labcorp Genetics (formerly Invitae), Labcorp
Significance:Likely benign
Review Status:criteria provided, single submitter
Collection Method:clinical testing

- -

Hereditary cancer-predisposing syndrome Uncertain:1
Oct 17, 2015
Ambry Genetics
Significance:Uncertain significance
Review Status:criteria provided, single submitter
Collection Method:clinical testing

The c.3121-14G>A intronic alteration consists of a G to A substitution 14 nucleotides before coding exon 25 in the POLD1 gene. Based on insufficient or conflicting evidence, the clinical significance of this alteration remains unclear. -

not specified Benign:1
Oct 24, 2016
GeneDx
Significance:Likely benign
Review Status:criteria provided, single submitter
Collection Method:clinical testing

This 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. -

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 c.3121-14G>A variant was not identified in the literature. The variant was identified in dbSNP (ID: rs367766963) as “With Likely benign allele” and ClinVar (classified as likely benign by GeneDx, PreventionGenetics and Counsyl). The variant was identified in control databases in 36 of 231642 chromosomes at a frequency of 0.0002 (Genome Aggregation Database Feb 27, 2017). The variant was observed in the following populations: African in 15 of 20212 chromosomes (freq: 0.0007), Latino in 9 of 30460 chromosomes (freq: 0.0003), European Non-Finnish in 9 of 102726 chromosomes (freq: 0.00009), East Asian in 2 of 16182 chromosomes (freq: 0.0001), and South Asian in 1 of 27054 chromosomes (freq: 0.00004); it was not observed in the Other, Ashkenazi Jewish, or European Finnish populations. 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. -

not provided Benign:1
Jul 20, 2017
PreventionGenetics, part of Exact Sciences
Significance:Likely benign
Review Status:criteria provided, single submitter
Collection Method:clinical testing

- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
BayesDel_noAF
Benign
-0.80
CADD
Benign
11
DANN
Benign
0.93
PhyloP100
0.028
RBP_binding_hub_radar
1.0
RBP_regulation_power_radar
2.3
Mutation Taster
=100/0
polymorphism

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

Other links and lift over

dbSNP: rs367766963; hg19: chr19-50920415; API