Genetic Variant POLD1:p.Val945Leu (chr19-50416408-G-C) – ACMG Classification: Uncertain_significance (2 pts)

Variant summary

Our verdict is Uncertain significance. The variant received 2 ACMG points: 2P and 0B. PM2

The NM_002691.4(POLD1):c.2833G>C(p.Val945Leu) variant causes a missense change. The variant allele was found at a frequency of 0.000000716 in 1,397,046 control chromosomes in the GnomAD database, with no homozygous occurrence. 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. V945M) has been classified as Uncertain significance.

Frequency

Genomes: not found (cov: 32)

Exomes 𝑓: 7.2e-7 ( 0 hom. )

Consequence

POLD1
NM_002691.4 missense

Scores

Clinical Significance

Not reported in ClinVar

Conservation

PhyloP100: 6.16

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

POLD1 links:

ENSG00000142539 (HGNC:):

ENSG00000142539 links:

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Uncertain_significance. The variant received 2 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
POLD1	NM_002691.4 link	c.2833G>C	p.Val945Leu	missense_variant	Exon 23 of 27	ENST00000440232.7	NP_002682.2

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
POLD1	ENST00000440232.7 link	c.2833G>C	p.Val945Leu	missense_variant	Exon 23 of 27	1	NM_002691.4	ENSP00000406046.1
ENSG00000142539	ENST00000599632.1 link	c.40G>C	p.Val14Leu	missense_variant	Exon 2 of 10	5		ENSP00000473233.1

Frequencies

GnomAD3 genomes

Cov.:

GnomAD4 exome

AF:

7.16e-7

AC:

AN:

1397046

Hom.:

Cov.:

AF XY:

0.00000145

AC XY:

AN XY:

689182

show subpopulations

African (AFR)

AF:

0.00

AC:

AN:

31576

American (AMR)

AF:

0.00

AC:

AN:

35764

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

25160

East Asian (EAS)

AF:

0.00

AC:

AN:

35806

South Asian (SAS)

AF:

0.00

AC:

AN:

79194

European-Finnish (FIN)

AF:

0.00

AC:

AN:

48216

Middle Eastern (MID)

AF:

0.00

AC:

AN:

4294

European-Non Finnish (NFE)

AF:

9.27e-7

AC:

AN:

1079174

Other (OTH)

AF:

0.00

AC:

AN:

57862

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.575

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

GnomAD4 genome

Cov.:

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Pathogenic

0.92

BayesDel_addAF

Benign

-0.057

BayesDel_noAF

Benign

-0.32

CADD

Pathogenic

(source)

DANN

Uncertain

1.0

DEOGEN2

Benign

0.35

T;.;.;T

Eigen

Uncertain

0.61

Eigen_PC

Uncertain

0.51

FATHMM_MKL

Uncertain

0.92

LIST_S2

Benign

0.0

.;.;D;D

M_CAP

Uncertain

0.20

MetaRNN

Uncertain

0.49

T;T;T;T

MetaSVM

Benign

-0.84

MutationAssessor

Uncertain

2.3

M;.;.;M

PhyloP100

6.2

PrimateAI

Pathogenic

0.81

PROVEAN

Uncertain

-2.9

D;.;.;.

REVEL

Uncertain

0.30

Sift

Uncertain

0.0010

D;.;.;.

Sift4G

Uncertain

0.0020

D;D;D;D

Vest4

0.42

ClinPred

1.0

GERP RS

3.1

RBP_binding_hub_radar

0.92

RBP_regulation_power_radar

2.7

Varity_R

0.77

gMVP

0.72

Mutation Taster

=30/70

disease causing

(source)

Splicing

Name

Calibrated prediction

Score

Prediction

SpliceAI score (max)

0.020

Details are displayed if max score is > 0.2

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

Publications

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Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

Publications

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

ClinVar

Computational scores

Splicing

Publications

Other links and lift over