19-50417852-C-T

Variant names:

Variant summary

Our verdict is Likely pathogenic. The variant received 6 ACMG points: 6P and 0B. PM1PM2PP3_Moderate

The NM_002691.4(POLD1):c.3229C>T(p.Pro1077Ser) variant causes a missense change. The variant was absent in control chromosomes in GnomAD project. In-silico tool predicts a pathogenic 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. P1077A) has been classified as Uncertain significance.

Frequency

Genomes: not found (cov: 32)

Exomes 𝑓: 0.0 ( 0 hom. )

Failed GnomAD Quality Control

Consequence

POLD1
NM_002691.4 missense

Scores

Clinical Significance

Uncertain significance criteria provided, multiple submitters, no conflicts U:2

Conservation

PhyloP100: 4.16

Publications

1 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:

ENSG00000142539 (HGNC:):

ENSG00000142539 links:

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Likely_pathogenic. The variant received 6 ACMG points.

PM1

In a hotspot region, there are 3 aminoacids with missense pathogenic changes in the window of +-8 aminoacids around while only 1 benign, 36 uncertain in NM_002691.4

PM2

Very rare variant in population databases, with high coverage;

PP3

MetaRNN computational evidence supports a deleterious effect, 0.902

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.3229C>T	p.Pro1077Ser	missense	Exon 27 of 27	NP_002682.2	P28340
POLD1	NM_001308632.1		c.3307C>T	p.Pro1103Ser	missense	Exon 26 of 26	NP_001295561.1	M0R2B7
POLD1	NM_001256849.1		c.3229C>T	p.Pro1077Ser	missense	Exon 27 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.3229C>T	p.Pro1077Ser	missense	Exon 27 of 27	ENSP00000406046.1	P28340
POLD1	ENST00000595904.6	TSL:1	c.3307C>T	p.Pro1103Ser	missense	Exon 27 of 27	ENSP00000472445.1	M0R2B7
POLD1	ENST00000599857.7	TSL:1	c.3229C>T	p.Pro1077Ser	missense	Exon 27 of 27	ENSP00000473052.1	P28340

Frequencies

GnomAD3 genomes

Cov.:

GnomAD4 exome

Data not reliable, filtered out with message: AC0

AF:

0.00

AC:

AN:

1452892

Hom.:

Cov.:

AF XY:

0.00

AC XY:

AN XY:

722060

African (AFR)

AF:

0.00

AC:

AN:

33192

American (AMR)

AF:

0.00

AC:

AN:

43916

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

25886

East Asian (EAS)

AF:

0.00

AC:

AN:

39398

South Asian (SAS)

AF:

0.00

AC:

AN:

84678

European-Finnish (FIN)

AF:

0.00

AC:

AN:

52270

Middle Eastern (MID)

AF:

0.00

AC:

AN:

5740

European-Non Finnish (NFE)

AF:

0.00

AC:

AN:

1107824

Other (OTH)

AF:

0.00

AC:

AN:

59988

GnomAD4 genome

Cov.:

Alfa

AF:

0.00

Hom.:

Bravo

AF:

0.00000378

ClinVar

ClinVar submissions

Significance:Uncertain significance

Revision:criteria provided, multiple submitters, no conflicts

View on ClinVar

Pathogenic

VUS

Benign

Condition

Colorectal cancer, susceptibility to, 10 (1)

Hereditary cancer-predisposing syndrome (1)

Computational scores

Source: dbNSFP v4.9

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Pathogenic

0.75

BayesDel_addAF

Benign

0.011

BayesDel_noAF

Benign

-0.22

CADD

Pathogenic

(source)

DANN

Pathogenic

1.0

DEOGEN2

Uncertain

0.48

Eigen

Uncertain

0.64

Eigen_PC

Uncertain

0.52

FATHMM_MKL

Benign

0.71

LIST_S2

Pathogenic

0.99

M_CAP

Pathogenic

0.83

MetaRNN

Pathogenic

0.90

MetaSVM

Uncertain

-0.11

MutationAssessor

Pathogenic

3.3

PhyloP100

4.2

PrimateAI

Pathogenic

0.88

PROVEAN

Pathogenic

-7.6

REVEL

Uncertain

0.41

Sift

Uncertain

0.021

Sift4G

Uncertain

0.018

Polyphen

1.0

Vest4

0.62

MutPred

0.75

Gain of MoRF binding (P = 0.0513)

MVP

0.75

MPC

1.6

ClinPred

1.0

GERP RS

3.9

RBP_binding_hub_radar

0.0

RBP_regulation_power_radar

1.7

Varity_R

0.88

gMVP

0.81

Mutation Taster

=35/65

disease causing

(source)

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

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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