rs373637566

Variant summary

Our verdict is Likely benign. The variant received -3 ACMG points: 0P and 3B. BP4_ModerateBP6

The NM_002691.4(POLD1):​c.50G>A​(p.Arg17Gln) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000015 in 1,600,310 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 14/22 in silico tools predict 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. R17L) has been classified as Likely benign.

Frequency

Genomes: 𝑓 0.000013 ( 0 hom., cov: 32)
Exomes 𝑓: 0.000015 ( 0 hom. )

Consequence

POLD1
NM_002691.4 missense

Scores

2
16

Clinical Significance

Conflicting classifications of pathogenicity criteria provided, conflicting classifications U:3B:1

Conservation

PhyloP100: 2.26

Publications

2 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 -3 ACMG points.

BP4
Computational evidence support a benign effect (MetaRNN=0.09685558).
BP6
Variant 19-50398901-G-A is Benign according to our data. Variant chr19-50398901-G-A is described in ClinVar as Conflicting_classifications_of_pathogenicity. ClinVar VariationId is 408008.

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.50G>Ap.Arg17Gln
missense
Exon 2 of 27NP_002682.2
POLD1
NM_001308632.1
c.50G>Ap.Arg17Gln
missense
Exon 1 of 26NP_001295561.1
POLD1
NM_001256849.1
c.50G>Ap.Arg17Gln
missense
Exon 2 of 27NP_001243778.1

Ensembl Transcripts

Selected
GeneTranscriptTagsHGVScHGVSpEffectExon RankProteinUniProt
POLD1
ENST00000440232.7
TSL:1 MANE Select
c.50G>Ap.Arg17Gln
missense
Exon 2 of 27ENSP00000406046.1
POLD1
ENST00000595904.6
TSL:1
c.50G>Ap.Arg17Gln
missense
Exon 2 of 27ENSP00000472445.1
POLD1
ENST00000599857.7
TSL:1
c.50G>Ap.Arg17Gln
missense
Exon 2 of 27ENSP00000473052.1

Frequencies

GnomAD3 genomes
AF:
0.0000131
AC:
2
AN:
152246
Hom.:
0
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.0000482
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:
0.00
Gnomad OTH
AF:
0.00
GnomAD2 exomes
AF:
0.0000177
AC:
4
AN:
225916
AF XY:
0.0000164
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.00
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.000176
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.00000989
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.0000152
AC:
22
AN:
1448064
Hom.:
0
Cov.:
33
AF XY:
0.0000125
AC XY:
9
AN XY:
719008
show subpopulations
African (AFR)
AF:
0.0000300
AC:
1
AN:
33326
American (AMR)
AF:
0.00
AC:
0
AN:
42662
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
25680
East Asian (EAS)
AF:
0.000102
AC:
4
AN:
39316
South Asian (SAS)
AF:
0.0000238
AC:
2
AN:
83966
European-Finnish (FIN)
AF:
0.0000383
AC:
2
AN:
52270
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
4146
European-Non Finnish (NFE)
AF:
0.00000903
AC:
10
AN:
1106960
Other (OTH)
AF:
0.0000502
AC:
3
AN:
59738
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.518
Heterozygous variant carriers
0
1
3
4
6
7
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:
0.0000131
AC:
2
AN:
152246
Hom.:
0
Cov.:
32
AF XY:
0.0000269
AC XY:
2
AN XY:
74374
show subpopulations
African (AFR)
AF:
0.0000482
AC:
2
AN:
41466
American (AMR)
AF:
0.00
AC:
0
AN:
15286
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
3472
East Asian (EAS)
AF:
0.00
AC:
0
AN:
5198
South Asian (SAS)
AF:
0.00
AC:
0
AN:
4834
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
10624
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
316
European-Non Finnish (NFE)
AF:
0.00
AC:
0
AN:
68044
Other (OTH)
AF:
0.00
AC:
0
AN:
2094
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
Alfa
AF:
0.0000392
Hom.:
0
Bravo
AF:
0.0000378
ESP6500AA
AF:
0.000227
AC:
1
ESP6500EA
AF:
0.000116
AC:
1
ExAC
AF:
0.0000248
AC:
3
Asia WGS
AF:
0.000289
AC:
1
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
-
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
0.14
BayesDel_addAF
Benign
-0.19
T
BayesDel_noAF
Benign
-0.51
CADD
Benign
21
DANN
Uncertain
0.99
DEOGEN2
Benign
0.24
T
Eigen
Benign
-0.41
Eigen_PC
Benign
-0.32
FATHMM_MKL
Benign
0.68
D
LIST_S2
Benign
0.78
T
M_CAP
Benign
0.016
T
MetaRNN
Benign
0.097
T
MetaSVM
Benign
-1.1
T
MutationAssessor
Benign
0.20
N
PhyloP100
2.3
PrimateAI
Uncertain
0.75
T
PROVEAN
Benign
-0.99
N
REVEL
Benign
0.036
Sift
Benign
0.21
T
Sift4G
Benign
0.26
T
Polyphen
0.029
B
Vest4
0.30
MVP
0.34
MPC
0.22
ClinPred
0.10
T
GERP RS
2.1
PromoterAI
0.028
Neutral
RBP_binding_hub_radar
0.0
RBP_regulation_power_radar
1.1
Varity_R
0.032
gMVP
0.36
Mutation Taster
=86/14
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: rs373637566; hg19: chr19-50902158; API