rs145473716

Variant summary

Our verdict is Benign. The variant received -9 ACMG points: 0P and 9B. BP4_StrongBP6BS2

The NM_002691.4(POLD1):​c.2275G>A​(p.Val759Ile) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.00117 in 1,609,734 control chromosomes in the GnomAD database, including 19 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Conflicting classifications of pathogenicity (no stars). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. V759F) has been classified as Uncertain significance.

Frequency

Genomes: 𝑓 0.0011 ( 1 hom., cov: 33)
Exomes 𝑓: 0.0012 ( 18 hom. )

Consequence

POLD1
NM_002691.4 missense

Scores

7
3
8

Clinical Significance

Conflicting classifications of pathogenicity criteria provided, conflicting classifications U:2B:16

Conservation

PhyloP100: 9.20

Publications

18 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: Benign. The variant received -9 ACMG points.

BP4
Computational evidence support a benign effect (MetaRNN=0.017968148).
BP6
Variant 19-50413766-G-A is Benign according to our data. Variant chr19-50413766-G-A is described in ClinVar as Conflicting_classifications_of_pathogenicity. ClinVar VariationId is 221038.
BS2
High Homozygotes in GnomAdExome4 at 18 AD,AR gene

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_002691.4. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Selected
GeneTranscriptTagsHGVScHGVSpEffectExon RankProteinUniProt
POLD1
NM_002691.4
MANE Select
c.2275G>Ap.Val759Ile
missense
Exon 19 of 27NP_002682.2
POLD1
NM_001308632.1
c.2353G>Ap.Val785Ile
missense
Exon 18 of 26NP_001295561.1
POLD1
NM_001256849.1
c.2275G>Ap.Val759Ile
missense
Exon 19 of 27NP_001243778.1

Ensembl Transcripts

Selected
GeneTranscriptTagsHGVScHGVSpEffectExon RankProteinUniProt
POLD1
ENST00000440232.7
TSL:1 MANE Select
c.2275G>Ap.Val759Ile
missense
Exon 19 of 27ENSP00000406046.1
POLD1
ENST00000595904.6
TSL:1
c.2353G>Ap.Val785Ile
missense
Exon 19 of 27ENSP00000472445.1
POLD1
ENST00000599857.7
TSL:1
c.2275G>Ap.Val759Ile
missense
Exon 19 of 27ENSP00000473052.1

Frequencies

GnomAD3 genomes
AF:
0.00113
AC:
172
AN:
152206
Hom.:
1
Cov.:
33
show subpopulations
Gnomad AFR
AF:
0.0000965
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.00137
Gnomad ASJ
AF:
0.0213
Gnomad EAS
AF:
0.000964
Gnomad SAS
AF:
0.00104
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.0127
Gnomad NFE
AF:
0.000779
Gnomad OTH
AF:
0.00287
GnomAD2 exomes
AF:
0.00184
AC:
456
AN:
247622
AF XY:
0.00184
show subpopulations
Gnomad AFR exome
AF:
0.0000616
Gnomad AMR exome
AF:
0.000671
Gnomad ASJ exome
AF:
0.0203
Gnomad EAS exome
AF:
0.00109
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.000969
Gnomad OTH exome
AF:
0.00330
GnomAD4 exome
AF:
0.00118
AC:
1718
AN:
1457410
Hom.:
18
Cov.:
31
AF XY:
0.00130
AC XY:
944
AN XY:
725038
show subpopulations
African (AFR)
AF:
0.000539
AC:
18
AN:
33418
American (AMR)
AF:
0.000743
AC:
33
AN:
44434
Ashkenazi Jewish (ASJ)
AF:
0.0229
AC:
594
AN:
25984
East Asian (EAS)
AF:
0.000756
AC:
30
AN:
39682
South Asian (SAS)
AF:
0.00286
AC:
246
AN:
86004
European-Finnish (FIN)
AF:
0.0000196
AC:
1
AN:
50944
Middle Eastern (MID)
AF:
0.0156
AC:
90
AN:
5756
European-Non Finnish (NFE)
AF:
0.000501
AC:
556
AN:
1110878
Other (OTH)
AF:
0.00249
AC:
150
AN:
60310
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.487
Heterozygous variant carriers
0
96
193
289
386
482
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Exome Het
Exome Hom
Variant carriers
0
32
64
96
128
160
<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:
0.00113
AC:
172
AN:
152324
Hom.:
1
Cov.:
33
AF XY:
0.00101
AC XY:
75
AN XY:
74482
show subpopulations
African (AFR)
AF:
0.0000962
AC:
4
AN:
41582
American (AMR)
AF:
0.00137
AC:
21
AN:
15304
Ashkenazi Jewish (ASJ)
AF:
0.0213
AC:
74
AN:
3470
East Asian (EAS)
AF:
0.000966
AC:
5
AN:
5176
South Asian (SAS)
AF:
0.00104
AC:
5
AN:
4818
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
10622
Middle Eastern (MID)
AF:
0.0136
AC:
4
AN:
294
European-Non Finnish (NFE)
AF:
0.000779
AC:
53
AN:
68030
Other (OTH)
AF:
0.00284
AC:
6
AN:
2116
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.498
Heterozygous variant carriers
0
9
18
28
37
46
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Genome Het
Genome Hom
Variant carriers
0
4
8
12
16
20
<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:
0.00149
Hom.:
4
Bravo
AF:
0.00129
TwinsUK
AF:
0.000270
AC:
1
ALSPAC
AF:
0.000778
AC:
3
ESP6500AA
AF:
0.00
AC:
0
ESP6500EA
AF:
0.00198
AC:
17
ExAC
AF:
0.00171
AC:
208
Asia WGS
AF:
0.00173
AC:
6
AN:
3478

ClinVar

ClinVar submissions as Germline

Significance:Conflicting classifications of pathogenicity
Revision:criteria provided, conflicting classifications
View on ClinVar
Pathogenic
VUS
Benign
Condition
-
1
5
not specified (6)
-
-
4
Hereditary cancer-predisposing syndrome (4)
-
1
2
Colorectal cancer, susceptibility to, 10 (3)
-
-
3
not provided (3)
-
-
1
Malignant tumor of breast (1)
-
-
1
POLD1-related disorder (1)

Computational scores

Source: dbNSFP v4.9

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.26
BayesDel_addAF
Benign
-0.35
T
BayesDel_noAF
Benign
-0.27
CADD
Pathogenic
27
DANN
Pathogenic
1.0
DEOGEN2
Benign
0.16
T
Eigen
Pathogenic
0.83
Eigen_PC
Pathogenic
0.77
FATHMM_MKL
Pathogenic
0.99
D
LIST_S2
Pathogenic
0.98
D
M_CAP
Benign
0.083
D
MetaRNN
Benign
0.018
T
MetaSVM
Benign
-0.84
T
MutationAssessor
Uncertain
2.8
M
PhyloP100
9.2
PrimateAI
Uncertain
0.74
T
PROVEAN
Benign
-1.0
N
REVEL
Uncertain
0.32
Sift
Pathogenic
0.0
D
Sift4G
Pathogenic
0.0
D
Polyphen
1.0
D
Vest4
0.52
MVP
0.56
MPC
1.5
ClinPred
0.059
T
GERP RS
4.9
PromoterAI
-0.021
Neutral
RBP_binding_hub_radar
0.0
RBP_regulation_power_radar
1.7
Varity_R
0.52
gMVP
0.52
Mutation Taster
=60/40
polymorphism

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

Other links and lift over

dbSNP: rs145473716; hg19: chr19-50917023; COSMIC: COSV70955199; COSMIC: COSV70955199; API