rs897259743

Variant summary

Our verdict is Likely benign. Variant got -3 ACMG points: 1P and 4B. PP3BS2

The NM_002691.4(POLD1):​c.2911G>A​(p.Glu971Lys) variant causes a missense change. The variant allele was found at a frequency of 0.00000838 in 1,551,916 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a pathogenic outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.0000066 ( 0 hom., cov: 32)
Exomes 𝑓: 0.0000086 ( 0 hom. )

Consequence

POLD1
NM_002691.4 missense

Scores

5
7
7

Clinical Significance

Uncertain significance criteria provided, single submitter U:1O:1

Conservation

PhyloP100: 4.02
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]

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Likely_benign. Variant got -3 ACMG points.

PP3
MetaRNN computational evidence supports a deleterious effect, 0.763
BS2
High AC in GnomAdExome4 at 12 AD gene.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
POLD1NM_002691.4 linkuse as main transcriptc.2911G>A p.Glu971Lys missense_variant 23/27 ENST00000440232.7 NP_002682.2

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
POLD1ENST00000440232.7 linkuse as main transcriptc.2911G>A p.Glu971Lys missense_variant 23/271 NM_002691.4 ENSP00000406046 P1

Frequencies

GnomAD3 genomes
AF:
0.00000657
AC:
1
AN:
152198
Hom.:
0
Cov.:
32
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:
0.000193
Gnomad SAS
AF:
0.00
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.00
Gnomad OTH
AF:
0.00
GnomAD4 exome
AF:
0.00000857
AC:
12
AN:
1399718
Hom.:
0
Cov.:
31
AF XY:
0.00000290
AC XY:
2
AN XY:
690812
show subpopulations
Gnomad4 AFR exome
AF:
0.00
Gnomad4 AMR exome
AF:
0.00
Gnomad4 ASJ exome
AF:
0.0000397
Gnomad4 EAS exome
AF:
0.0000556
Gnomad4 SAS exome
AF:
0.0000126
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.00000648
Gnomad4 OTH exome
AF:
0.0000172
GnomAD4 genome
AF:
0.00000657
AC:
1
AN:
152198
Hom.:
0
Cov.:
32
AF XY:
0.00
AC XY:
0
AN XY:
74350
show subpopulations
Gnomad4 AFR
AF:
0.00
Gnomad4 AMR
AF:
0.00
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.000193
Gnomad4 SAS
AF:
0.00
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.00
Gnomad4 OTH
AF:
0.00
Alfa
AF:
0.0000712
Hom.:
0
Bravo
AF:
0.00000756

ClinVar

Significance: Uncertain significance
Submissions summary: Uncertain:1Other:1
Revision: criteria provided, single submitter
LINK: link

Submissions by phenotype

Colorectal cancer, susceptibility to, 10 Uncertain:1
Uncertain significance, criteria provided, single submitterclinical testingLabcorp Genetics (formerly Invitae), LabcorpOct 04, 2023This sequence change replaces glutamic acid, which is acidic and polar, with lysine, which is basic and polar, at codon 971 of the POLD1 protein (p.Glu971Lys). This variant is not present in population databases (gnomAD no frequency). This variant has not been reported in the literature in individuals affected with POLD1-related conditions. ClinVar contains an entry for this variant (Variation ID: 569277). Advanced modeling of protein sequence and biophysical properties (such as structural, functional, and spatial information, amino acid conservation, physicochemical variation, residue mobility, and thermodynamic stability) performed at Invitae indicates that this missense variant is not expected to disrupt POLD1 protein function. In summary, the available evidence is currently insufficient to determine the role of this variant in disease. Therefore, it has been classified as a Variant of Uncertain Significance. -
not provided Other:1
not provided, no classification providedphenotyping onlyGenomeConnect, ClinGen-Variant interpreted as Uncertain significance and reported on 06-08-2022 by Trillium Health Partners Credit Valley Hospital. GenomeConnect assertions are reported exactly as they appear on the patient-provided report from the testing laboratory. GenomeConnect staff make no attempt to reinterpret the clinical significance of the variant. -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Pathogenic
0.67
BayesDel_addAF
Benign
-0.0063
T
BayesDel_noAF
Benign
-0.25
CADD
Pathogenic
31
DANN
Pathogenic
1.0
DEOGEN2
Benign
0.33
T;.;.;T
Eigen
Uncertain
0.56
Eigen_PC
Uncertain
0.47
FATHMM_MKL
Uncertain
0.82
D
LIST_S2
Pathogenic
0.99
.;.;D;D
M_CAP
Uncertain
0.13
D
MetaRNN
Pathogenic
0.76
D;D;D;D
MetaSVM
Benign
-0.92
T
MutationAssessor
Uncertain
2.9
M;.;.;M
MutationTaster
Benign
1.0
D
PrimateAI
Pathogenic
0.89
D
PROVEAN
Uncertain
-2.8
D;.;.;.
REVEL
Benign
0.24
Sift
Uncertain
0.023
D;.;.;.
Sift4G
Benign
0.085
T;T;T;T
Polyphen
0.93
P;.;.;P
Vest4
0.66
MutPred
0.69
Gain of methylation at E971 (P = 0.0182);.;.;Gain of methylation at E971 (P = 0.0182);
MVP
0.75
MPC
1.7
ClinPred
1.0
D
GERP RS
3.1
Varity_R
0.65
gMVP
0.77

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

LitVar

Below is the list of publications found by LitVar. It may be empty.

Other links and lift over

dbSNP: rs897259743; hg19: chr19-50919743; COSMIC: COSV54529607; COSMIC: COSV54529607; API