rs143076166

Variant summary

Our verdict is Uncertain significance. The variant received 1 ACMG points: 1P and 0B. PP3

The NM_002691.4(POLD1):​c.1562G>A​(p.Arg521Gln) variant causes a missense change. The variant allele was found at a frequency of 0.000161 in 1,613,618 control chromosomes in the GnomAD database, with no homozygous occurrence. 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. R521W) has been classified as Uncertain significance.

Frequency

Genomes: 𝑓 0.000059 ( 0 hom., cov: 30)
Exomes 𝑓: 0.00017 ( 0 hom. )

Consequence

POLD1
NM_002691.4 missense

Scores

4
8
6

Clinical Significance

Conflicting classifications of pathogenicity criteria provided, conflicting classifications U:10B:1O:2

Conservation

PhyloP100: 7.04

Publications

14 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):
  • mandibular hypoplasia-deafness-progeroid syndrome
    Inheritance: AD, AR Classification: DEFINITIVE, STRONG, SUPPORTIVE, LIMITED Submitted by: G2P, Orphanet, Ambry Genetics, Labcorp Genetics (formerly Invitae), ClinGen, Genomics England PanelApp
  • 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: Ambry Genetics, Labcorp Genetics (formerly Invitae), Genomics England PanelApp
  • 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: Uncertain_significance. The variant received 1 ACMG points.

PP3
Splicing predictors support a deleterious effect. Scorers claiming Pathogenic: max_spliceai. No scorers claiming Uncertain. No scorers claiming Benign.

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

Sel.
GeneTranscriptTagsHGVScHGVSpEffectExon RankProteinUniProt
POLD1
NM_002691.4
MANE Select
c.1562G>Ap.Arg521Gln
missense
Exon 13 of 27NP_002682.2P28340
POLD1
NM_001308632.1
c.1562G>Ap.Arg521Gln
missense
Exon 12 of 26NP_001295561.1M0R2B7
POLD1
NM_001256849.1
c.1562G>Ap.Arg521Gln
missense
Exon 13 of 27NP_001243778.1P28340

Ensembl Transcripts

Sel.
GeneTranscriptTagsHGVScHGVSpEffectExon RankProteinUniProt
POLD1
ENST00000440232.7
TSL:1 MANE Select
c.1562G>Ap.Arg521Gln
missense
Exon 13 of 27ENSP00000406046.1P28340
POLD1
ENST00000595904.6
TSL:1
c.1562G>Ap.Arg521Gln
missense
Exon 13 of 27ENSP00000472445.1M0R2B7
POLD1
ENST00000599857.7
TSL:1
c.1562G>Ap.Arg521Gln
missense
Exon 13 of 27ENSP00000473052.1P28340

Frequencies

GnomAD3 genomes
AF:
0.0000592
AC:
9
AN:
152108
Hom.:
0
Cov.:
30
show subpopulations
Gnomad AFR
AF:
0.0000241
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:
0.0000735
Gnomad OTH
AF:
0.000478
GnomAD2 exomes
AF:
0.000124
AC:
31
AN:
250624
AF XY:
0.0000959
show subpopulations
Gnomad AFR exome
AF:
0.000124
Gnomad AMR exome
AF:
0.00
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.000239
Gnomad OTH exome
AF:
0.000327
GnomAD4 exome
AF:
0.000172
AC:
251
AN:
1461510
Hom.:
0
Cov.:
34
AF XY:
0.000158
AC XY:
115
AN XY:
727086
show subpopulations
African (AFR)
AF:
0.0000597
AC:
2
AN:
33480
American (AMR)
AF:
0.00
AC:
0
AN:
44722
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
26130
East Asian (EAS)
AF:
0.00
AC:
0
AN:
39700
South Asian (SAS)
AF:
0.00
AC:
0
AN:
86252
European-Finnish (FIN)
AF:
0.0000188
AC:
1
AN:
53092
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
5762
European-Non Finnish (NFE)
AF:
0.000208
AC:
231
AN:
1111978
Other (OTH)
AF:
0.000281
AC:
17
AN:
60394
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.480
Heterozygous variant carriers
0
14
28
41
55
69
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:
0.0000592
AC:
9
AN:
152108
Hom.:
0
Cov.:
30
AF XY:
0.0000673
AC XY:
5
AN XY:
74294
show subpopulations
African (AFR)
AF:
0.0000241
AC:
1
AN:
41428
American (AMR)
AF:
0.000131
AC:
2
AN:
15244
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
3472
East Asian (EAS)
AF:
0.00
AC:
0
AN:
5192
South Asian (SAS)
AF:
0.00
AC:
0
AN:
4826
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
10600
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
316
European-Non Finnish (NFE)
AF:
0.0000735
AC:
5
AN:
68028
Other (OTH)
AF:
0.000478
AC:
1
AN:
2090
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.503
Heterozygous variant carriers
0
1
2
2
3
4
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:
0.000166
Hom.:
0
Bravo
AF:
0.0000907
ESP6500AA
AF:
0.000908
AC:
4
ESP6500EA
AF:
0.000116
AC:
1
ExAC
AF:
0.000165
AC:
20
EpiCase
AF:
0.000491
EpiControl
AF:
0.000237

ClinVar

ClinVar submissions
Significance:Conflicting classifications of pathogenicity
Revision:criteria provided, conflicting classifications
View on ClinVar
Pathogenic
VUS
Benign
Condition
-
3
-
Colorectal cancer, susceptibility to, 10 (4)
-
2
1
Hereditary cancer-predisposing syndrome (3)
-
3
-
not provided (3)
-
1
-
Colorectal cancer (1)
-
1
-
not specified (1)
-
-
-
Mandibular hypoplasia-deafness-progeroid syndrome;CN280943:Familial colorectal cancer (1)

Computational scores

Source: dbNSFP v4.9

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.20
BayesDel_addAF
Benign
-0.11
T
BayesDel_noAF
Benign
-0.11
CADD
Pathogenic
35
DANN
Pathogenic
1.0
DEOGEN2
Uncertain
0.75
D
Eigen
Uncertain
0.24
Eigen_PC
Uncertain
0.23
FATHMM_MKL
Pathogenic
0.98
D
LIST_S2
Pathogenic
1.0
D
M_CAP
Benign
0.046
D
MetaRNN
Uncertain
0.43
T
MetaSVM
Benign
-1.1
T
MutationAssessor
Pathogenic
3.3
M
PhyloP100
7.0
PrimateAI
Uncertain
0.64
T
PROVEAN
Uncertain
-3.5
D
REVEL
Benign
0.28
Sift
Uncertain
0.023
D
Sift4G
Uncertain
0.056
T
Polyphen
0.82
P
Vest4
0.66
MVP
0.61
MPC
1.7
ClinPred
0.83
D
GERP RS
2.9
RBP_binding_hub_radar
0.0
RBP_regulation_power_radar
1.3
Varity_R
0.43
gMVP
0.64
Mutation Taster
=30/70
disease causing

Splicing

Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
0.75
Details are displayed if max score is > 0.2
DS_AG_spliceai
0.75
Position offset: 2

Find out detailed SpliceAI scores and Pangolin per-transcript scores at spliceailookup.broadinstitute.org

Publications

Other links and lift over

dbSNP: rs143076166; hg19: chr19-50910307; API