Genetic Variant POLD1:p.Arg331Pro (chr19-50403074-G-C) – ACMG Classification: Uncertain_significance (1 pts)

Variant summary

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

The NM_002691.4(POLD1):c.992G>C(p.Arg331Pro) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant was absent in control chromosomes in GnomAD project. In-silico tool predicts a benign outcome for this variant. 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. R331Q) has been classified as Uncertain significance.

Frequency

Genomes: not found (cov: 33)

Exomes 𝑓: 0.0 ( 0 hom. )

Failed GnomAD Quality Control

Consequence

POLD1
NM_002691.4 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 2.37

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):

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

POLD1 links:

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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=0.319703).

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

Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
POLD1	NM_002691.4	MANE Select	c.992G>C	p.Arg331Pro	missense	Exon 9 of 27	NP_002682.2	P28340
POLD1	NM_001308632.1		c.992G>C	p.Arg331Pro	missense	Exon 8 of 26	NP_001295561.1	M0R2B7
POLD1	NM_001256849.1		c.992G>C	p.Arg331Pro	missense	Exon 9 of 27	NP_001243778.1	P28340

Ensembl Transcripts

Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
POLD1	ENST00000440232.7	TSL:1 MANE Select	c.992G>C	p.Arg331Pro	missense	Exon 9 of 27	ENSP00000406046.1	P28340
POLD1	ENST00000595904.6	TSL:1	c.992G>C	p.Arg331Pro	missense	Exon 9 of 27	ENSP00000472445.1	M0R2B7
POLD1	ENST00000599857.7	TSL:1	c.992G>C	p.Arg331Pro	missense	Exon 9 of 27	ENSP00000473052.1	P28340

Frequencies

GnomAD3 genomes

Cov.:

GnomAD4 exome

Data not reliable, filtered out with message: AC0

AF:

0.00

AC:

AN:

1410108

Hom.:

Cov.:

AF XY:

0.00

AC XY:

AN XY:

696764

African (AFR)

AF:

0.00

AC:

AN:

32090

American (AMR)

AF:

0.00

AC:

AN:

37404

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

25236

East Asian (EAS)

AF:

0.00

AC:

AN:

36568

South Asian (SAS)

AF:

0.00

AC:

AN:

80152

European-Finnish (FIN)

AF:

0.00

AC:

AN:

49720

Middle Eastern (MID)

AF:

0.00

AC:

AN:

5682

European-Non Finnish (NFE)

AF:

0.00

AC:

AN:

1084924

Other (OTH)

AF:

0.00

AC:

AN:

58332

GnomAD4 genome

Cov.:

ClinVar

ClinVar submissions

Significance:Uncertain significance

Revision:criteria provided, single submitter

View on ClinVar

Pathogenic

VUS

Benign

Condition

Hereditary cancer-predisposing syndrome (1)

Computational scores

Source: dbNSFP v4.9

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Pathogenic

0.93

BayesDel_addAF

Benign

-0.15

BayesDel_noAF

Benign

-0.46

CADD

Uncertain

(source)

DANN

Uncertain

0.99

DEOGEN2

Benign

0.24

Eigen

Benign

-0.31

Eigen_PC

Benign

-0.20

FATHMM_MKL

Uncertain

0.93

LIST_S2

Pathogenic

0.99

M_CAP

Benign

0.013

MetaRNN

Benign

0.32

MetaSVM

Benign

-1.1

MutationAssessor

Benign

0.55

PhyloP100

2.4

PrimateAI

Uncertain

0.66

PROVEAN

Benign

-2.3

REVEL

Benign

0.074

Sift

Benign

0.18

Sift4G

Benign

0.28

Polyphen

0.036

Vest4

0.45

MutPred

0.49

Gain of glycosylation at R331 (P = 0.0295)

MVP

0.49

MPC

0.65

ClinPred

0.49

GERP RS

2.3

RBP_binding_hub_radar

0.0

RBP_regulation_power_radar

1.0

Varity_R

0.89

gMVP

0.85

Mutation Taster

=58/42

polymorphism

(source)

Splicing

Name

Calibrated prediction

Score

Prediction

SpliceAI score (max)

0.030

Details are displayed if max score is > 0.2

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

Publications

You must be logged in to view publications. This limit was set because tens of millions (!) of queries from AI bots are generated daily.

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

Publications

ACMG classification

Variant Effect in Transcripts

RefSeq Transcripts

Ensembl Transcripts

Frequencies

ClinVar

Computational scores

Splicing

Publications

Other links and lift over