rs755457889

Variant summary

Our verdict is Uncertain significance. The variant received 1 ACMG points: 2P and 1B. PM2BP4

The NM_002691.4(POLD1):​c.916C>A​(p.Arg306Ser) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000657 in 152,252 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. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar. Another variant affecting the same amino acid position, but resulting in a different missense (i.e. R306H) has been classified as Uncertain significance.

Frequency

Genomes: 𝑓 0.0000066 ( 0 hom., cov: 33)
Exomes 𝑓: 0.0 ( 0 hom. )
Failed GnomAD Quality Control

Consequence

POLD1
NM_002691.4 missense

Scores

1
3
14

Clinical Significance

Not reported in ClinVar

Conservation

PhyloP100: 1.74

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: Uncertain_significance. The variant received 1 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
BP4
Computational evidence support a benign effect (MetaRNN=0.2788266).

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.916C>Ap.Arg306Ser
missense
Exon 8 of 27NP_002682.2
POLD1
NM_001308632.1
c.916C>Ap.Arg306Ser
missense
Exon 7 of 26NP_001295561.1
POLD1
NM_001256849.1
c.916C>Ap.Arg306Ser
missense
Exon 8 of 27NP_001243778.1

Ensembl Transcripts

Selected
GeneTranscriptTagsHGVScHGVSpEffectExon RankProteinUniProt
POLD1
ENST00000440232.7
TSL:1 MANE Select
c.916C>Ap.Arg306Ser
missense
Exon 8 of 27ENSP00000406046.1
POLD1
ENST00000595904.6
TSL:1
c.916C>Ap.Arg306Ser
missense
Exon 8 of 27ENSP00000472445.1
POLD1
ENST00000599857.7
TSL:1
c.916C>Ap.Arg306Ser
missense
Exon 8 of 27ENSP00000473052.1

Frequencies

GnomAD3 genomes
AF:
0.00000657
AC:
1
AN:
152252
Hom.:
0
Cov.:
33
show subpopulations
Gnomad AFR
AF:
0.00
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:
0.0000147
Gnomad OTH
AF:
0.00
GnomAD4 exome
Data not reliable, filtered out with message: AC0
AF:
0.00
AC:
0
AN:
1447894
Hom.:
0
Cov.:
34
AF XY:
0.00
AC XY:
0
AN XY:
718188
African (AFR)
AF:
0.00
AC:
0
AN:
33216
American (AMR)
AF:
0.00
AC:
0
AN:
43718
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
25872
East Asian (EAS)
AF:
0.00
AC:
0
AN:
39234
South Asian (SAS)
AF:
0.00
AC:
0
AN:
85304
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
52414
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
4750
European-Non Finnish (NFE)
AF:
0.00
AC:
0
AN:
1103774
Other (OTH)
AF:
0.00
AC:
0
AN:
59612
GnomAD4 genome
AF:
0.00000657
AC:
1
AN:
152252
Hom.:
0
Cov.:
33
AF XY:
0.00
AC XY:
0
AN XY:
74380
show subpopulations
African (AFR)
AF:
0.00
AC:
0
AN:
41466
American (AMR)
AF:
0.00
AC:
0
AN:
15290
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
3470
East Asian (EAS)
AF:
0.00
AC:
0
AN:
5192
South Asian (SAS)
AF:
0.00
AC:
0
AN:
4838
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
10626
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
316
European-Non Finnish (NFE)
AF:
0.0000147
AC:
1
AN:
68050
Other (OTH)
AF:
0.00
AC:
0
AN:
2094
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.525
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:
0.00
Hom.:
0
Bravo
AF:
0.00000378

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.9

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Uncertain
0.36
BayesDel_addAF
Benign
-0.12
T
BayesDel_noAF
Benign
-0.42
CADD
Benign
22
DANN
Uncertain
0.99
DEOGEN2
Benign
0.22
T
Eigen
Benign
-0.47
Eigen_PC
Benign
-0.29
FATHMM_MKL
Uncertain
0.79
D
LIST_S2
Pathogenic
0.98
D
M_CAP
Benign
0.021
T
MetaRNN
Benign
0.28
T
MetaSVM
Benign
-1.0
T
MutationAssessor
Benign
0.34
N
PhyloP100
1.7
PrimateAI
Benign
0.48
T
PROVEAN
Benign
-1.9
N
REVEL
Benign
0.20
Sift
Benign
0.10
T
Sift4G
Benign
0.17
T
Polyphen
0.0050
B
Vest4
0.55
MutPred
0.36
Loss of solvent accessibility (P = 0.0606)
MVP
0.31
MPC
0.49
ClinPred
0.75
D
GERP RS
3.7
RBP_binding_hub_radar
0.0
RBP_regulation_power_radar
1.8
Varity_R
0.41
gMVP
0.55
Mutation Taster
=64/36
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: rs755457889; hg19: chr19-50905944; API