chr19-50416516-G-T

Variant names:

Variant summary

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

The NM_002691.4(POLD1):c.2941G>T(p.Ala981Ser) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000129 in 1,553,000 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 14/24 in silico tools predict 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. A981T) has been classified as Uncertain significance.

Frequency

Genomes: 𝑓 0.0000066 ( 0 hom., cov: 32)

Exomes 𝑓: 7.1e-7 ( 0 hom. )

Consequence

POLD1
NM_002691.4 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 2.28

Publications

1 publications found

Variant links:

COSMIC-nc: COSV99569870

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:

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;

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.2941G>T	p.Ala981Ser	missense	Exon 23 of 27	NP_002682.2	P28340
POLD1	NM_001308632.1		c.3019G>T	p.Ala1007Ser	missense	Exon 22 of 26	NP_001295561.1	M0R2B7
POLD1	NM_001256849.1		c.2941G>T	p.Ala981Ser	missense	Exon 23 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.2941G>T	p.Ala981Ser	missense	Exon 23 of 27	ENSP00000406046.1	P28340
POLD1	ENST00000595904.6	TSL:1	c.3019G>T	p.Ala1007Ser	missense	Exon 23 of 27	ENSP00000472445.1	M0R2B7
POLD1	ENST00000599857.7	TSL:1	c.2941G>T	p.Ala981Ser	missense	Exon 23 of 27	ENSP00000473052.1	P28340

Frequencies

GnomAD3 genomes

AF:

0.00000657

AC:

AN:

152234

Hom.:

Cov.:

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

GnomAD2 exomes

AF:

0.00

AC:

AN:

158270

AF XY:

0.00

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:

0.00

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

7.14e-7

AC:

AN:

1400766

Hom.:

Cov.:

AF XY:

0.00

AC XY:

AN XY:

691666

show subpopulations

African (AFR)

AF:

0.00

AC:

AN:

31802

American (AMR)

AF:

0.00

AC:

AN:

36330

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

25192

East Asian (EAS)

AF:

0.00

AC:

AN:

36096

South Asian (SAS)

AF:

0.00

AC:

AN:

79582

European-Finnish (FIN)

AF:

0.00

AC:

AN:

46624

Middle Eastern (MID)

AF:

0.00

AC:

AN:

5092

European-Non Finnish (NFE)

AF:

9.24e-7

AC:

AN:

1081940

Other (OTH)

AF:

0.00

AC:

AN:

58108

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.425

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

GnomAD4 genome

AF:

0.00000657

AC:

AN:

152234

Hom.:

Cov.:

AF XY:

0.00

AC XY:

AN XY:

74374

show subpopulations

African (AFR)

AF:

0.00

AC:

AN:

41464

American (AMR)

AF:

0.00

AC:

AN:

15292

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

3472

East Asian (EAS)

AF:

0.00

AC:

AN:

5196

South Asian (SAS)

AF:

0.00

AC:

AN:

4836

European-Finnish (FIN)

AF:

0.00

AC:

AN:

10626

Middle Eastern (MID)

AF:

0.00

AC:

AN:

316

European-Non Finnish (NFE)

AF:

0.0000147

AC:

AN:

68026

Other (OTH)

AF:

0.00

AC:

AN:

2094

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.625

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Alfa

AF:

0.00

Hom.:

Bravo

AF:

0.00000378

ClinVar

ClinVar submissions

Significance:Uncertain significance

Revision:criteria provided, single submitter

View on ClinVar

Pathogenic

VUS

Benign

Condition

Colorectal cancer, susceptibility to, 10 (1)

Computational scores

Source: dbNSFP v4.9

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.069

BayesDel_addAF

Benign

-0.33

BayesDel_noAF

Benign

-0.71

CADD

Benign

(source)

DANN

Benign

0.89

DEOGEN2

Benign

0.14

Eigen

Benign

-0.62

Eigen_PC

Benign

-0.57

FATHMM_MKL

Benign

0.65

LIST_S2

Benign

0.83

M_CAP

Benign

0.028

MetaRNN

Benign

0.071

MetaSVM

Benign

-0.99

MutationAssessor

Benign

-2.3

PhyloP100

2.3

PrimateAI

Uncertain

0.76

PROVEAN

Benign

2.3

REVEL

Benign

0.087

Sift

Benign

1.0

Sift4G

Benign

1.0

Polyphen

0.0

Vest4

0.14

MutPred

0.50

Gain of disorder (P = 0.0431)

MVP

0.25

MPC

0.57

ClinPred

0.15

GERP RS

0.81

RBP_binding_hub_radar

0.0

RBP_regulation_power_radar

1.8

Varity_R

0.057

gMVP

0.14

Mutation Taster

=95/5

polymorphism

(source)

Splicing

Name

Calibrated prediction

Score

Prediction

SpliceAI score (max)

0.41

Details are displayed if max score is > 0.2

DS_DG_spliceai

0.41

Position offset: -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

Variant Effect in Transcripts

RefSeq Transcripts

Ensembl Transcripts

Frequencies

ClinVar

Computational scores

Splicing

Publications

Other links and lift over