rs541931950

Variant summary

Our verdict is Uncertain significance. The variant received 3 ACMG points: 3P and 0B. PM1PP3

The NM_002691.4(POLD1):​c.3221G>A​(p.Arg1074Gln) variant causes a missense, splice region change. The variant allele was found at a frequency of 0.0000226 in 1,596,340 control chromosomes in the GnomAD database, with no homozygous occurrence. 1/1 splice prediction tools predicting alterations to normal splicing. Variant has been reported in ClinVar as Uncertain significance (★★). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. R1074G) has been classified as Uncertain significance.

Frequency

Genomes: 𝑓 0.000020 ( 0 hom., cov: 31)
Exomes 𝑓: 0.000023 ( 0 hom. )

Consequence

POLD1
NM_002691.4 missense, splice_region

Scores

5
6
7

Clinical Significance

Uncertain significance criteria provided, multiple submitters, no conflicts U:4

Conservation

PhyloP100: 3.85

Publications

4 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: Uncertain_significance. The variant received 3 ACMG points.

PM1
In a hotspot region, there are 4 aminoacids with missense pathogenic changes in the window of +-8 aminoacids around while only 1 benign, 38 uncertain in NM_002691.4
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

Selected
GeneTranscriptTagsHGVScHGVSpEffectExon RankProteinUniProt
POLD1
NM_002691.4
MANE Select
c.3221G>Ap.Arg1074Gln
missense splice_region
Exon 27 of 27NP_002682.2
POLD1
NM_001308632.1
c.3299G>Ap.Arg1100Gln
missense splice_region
Exon 26 of 26NP_001295561.1
POLD1
NM_001256849.1
c.3221G>Ap.Arg1074Gln
missense splice_region
Exon 27 of 27NP_001243778.1

Ensembl Transcripts

Selected
GeneTranscriptTagsHGVScHGVSpEffectExon RankProteinUniProt
POLD1
ENST00000440232.7
TSL:1 MANE Select
c.3221G>Ap.Arg1074Gln
missense splice_region
Exon 27 of 27ENSP00000406046.1
POLD1
ENST00000595904.6
TSL:1
c.3299G>Ap.Arg1100Gln
missense splice_region
Exon 27 of 27ENSP00000472445.1
POLD1
ENST00000599857.7
TSL:1
c.3221G>Ap.Arg1074Gln
missense splice_region
Exon 27 of 27ENSP00000473052.1

Frequencies

GnomAD3 genomes
AF:
0.0000199
AC:
3
AN:
150734
Hom.:
0
Cov.:
31
show subpopulations
Gnomad AFR
AF:
0.00
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.0000657
Gnomad ASJ
AF:
0.00
Gnomad EAS
AF:
0.00
Gnomad SAS
AF:
0.000207
Gnomad FIN
AF:
0.0000943
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.00
Gnomad OTH
AF:
0.00
GnomAD2 exomes
AF:
0.0000178
AC:
4
AN:
224578
AF XY:
0.0000163
show subpopulations
Gnomad AFR exome
AF:
0.00
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:
0.0000101
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.0000228
AC:
33
AN:
1445492
Hom.:
0
Cov.:
31
AF XY:
0.0000237
AC XY:
17
AN XY:
718040
show subpopulations
African (AFR)
AF:
0.00
AC:
0
AN:
32328
American (AMR)
AF:
0.00
AC:
0
AN:
43138
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
25774
East Asian (EAS)
AF:
0.00
AC:
0
AN:
39104
South Asian (SAS)
AF:
0.0000952
AC:
8
AN:
84040
European-Finnish (FIN)
AF:
0.0000193
AC:
1
AN:
51750
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
5712
European-Non Finnish (NFE)
AF:
0.0000208
AC:
23
AN:
1103994
Other (OTH)
AF:
0.0000168
AC:
1
AN:
59652
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.451
Heterozygous variant carriers
0
2
4
7
9
11
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Exome 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
GnomAD4 genome
AF:
0.0000199
AC:
3
AN:
150848
Hom.:
0
Cov.:
31
AF XY:
0.0000271
AC XY:
2
AN XY:
73804
show subpopulations
African (AFR)
AF:
0.00
AC:
0
AN:
40360
American (AMR)
AF:
0.0000656
AC:
1
AN:
15234
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
3470
East Asian (EAS)
AF:
0.00
AC:
0
AN:
5158
South Asian (SAS)
AF:
0.000207
AC:
1
AN:
4820
European-Finnish (FIN)
AF:
0.0000943
AC:
1
AN:
10604
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
294
European-Non Finnish (NFE)
AF:
0.00
AC:
0
AN:
67900
Other (OTH)
AF:
0.00
AC:
0
AN:
2098
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.475
Heterozygous variant carriers
0
0
1
1
2
2
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:
0.0000282
Hom.:
0
Bravo
AF:
0.0000227
ExAC
AF:
0.0000248
AC:
3

ClinVar

ClinVar submissions as Germline

Significance:Uncertain significance
Revision:criteria provided, multiple submitters, no conflicts
View on ClinVar
Pathogenic
VUS
Benign
Condition
-
1
-
Colorectal cancer, susceptibility to, 10 (1)
-
1
-
Hereditary cancer-predisposing syndrome (1)
-
1
-
not provided (1)
-
1
-
not specified (1)

Computational scores

Source: dbNSFP v4.9

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.30
BayesDel_addAF
Benign
-0.20
T
BayesDel_noAF
Benign
-0.31
CADD
Pathogenic
34
DANN
Pathogenic
1.0
DEOGEN2
Benign
0.38
T
Eigen
Uncertain
0.67
Eigen_PC
Uncertain
0.56
FATHMM_MKL
Benign
0.73
D
LIST_S2
Pathogenic
0.99
D
M_CAP
Pathogenic
0.93
D
MetaRNN
Uncertain
0.64
D
MetaSVM
Benign
-0.29
T
MutationAssessor
Pathogenic
3.0
M
PhyloP100
3.8
PrimateAI
Pathogenic
0.81
D
PROVEAN
Uncertain
-3.8
D
REVEL
Uncertain
0.38
Sift
Benign
0.030
D
Sift4G
Uncertain
0.025
D
Polyphen
1.0
D
Vest4
0.54
MutPred
0.53
Loss of phosphorylation at T1072 (P = 0.0834)
MVP
0.77
MPC
1.7
ClinPred
0.89
D
GERP RS
3.9
RBP_binding_hub_radar
0.0
RBP_regulation_power_radar
1.7
Varity_R
0.58
gMVP
0.69
Mutation Taster
=43/57
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: rs541931950; hg19: chr19-50921101; COSMIC: COSV99569926; COSMIC: COSV99569926; API