11-74625409-T-G

Variant summary

Our verdict is Uncertain significance. Variant got 0 ACMG points: 2P and 2B. PM2BP4_Moderate

The NM_006591.3(POLD3):ā€‹c.735T>Gā€‹(p.Asn245Lys) variant causes a missense, splice region change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000197 in 152,146 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 14/22 in silico tools predict a benign outcome for this variant. 3/3 splice prediction tools predict no significant impact on normal splicing. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar.

Frequency

Genomes: š‘“ 0.000020 ( 0 hom., cov: 31)

Consequence

POLD3
NM_006591.3 missense, splice_region

Scores

4
15
Splicing: ADA: 0.05921
2

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 2.82
Variant links:
Genes affected
POLD3 (HGNC:20932): (DNA polymerase delta 3, accessory subunit) This gene encodes the 66-kDa 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. The encoded protein plays a role in regulating the activity of DNA polymerase delta through interactions with other subunits and the processivity cofactor proliferating cell nuclear antigen (PCNA). Alternatively spliced transcript variants have been observed for this gene. [provided by RefSeq, Mar 2012]

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ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 0 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
BP4
Computational evidence support a benign effect (MetaRNN=0.23633587).

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
POLD3NM_006591.3 linkuse as main transcriptc.735T>G p.Asn245Lys missense_variant, splice_region_variant 8/12 ENST00000263681.7 NP_006582.1 Q15054-1A0A024R5M8

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
POLD3ENST00000263681.7 linkuse as main transcriptc.735T>G p.Asn245Lys missense_variant, splice_region_variant 8/121 NM_006591.3 ENSP00000263681.2 Q15054-1
POLD3ENST00000527458.5 linkuse as main transcriptc.618T>G p.Asn206Lys missense_variant, splice_region_variant 8/121 ENSP00000432951.1 Q15054-2
POLD3ENST00000532497.5 linkuse as main transcriptc.417T>G p.Asn139Lys missense_variant, splice_region_variant 7/111 ENSP00000436018.1 Q15054-3

Frequencies

GnomAD3 genomes
AF:
0.0000197
AC:
3
AN:
152146
Hom.:
0
Cov.:
31
show subpopulations
Gnomad AFR
AF:
0.0000724
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:
0.00
Gnomad OTH
AF:
0.00
GnomAD4 exome
Cov.:
29
GnomAD4 genome
AF:
0.0000197
AC:
3
AN:
152146
Hom.:
0
Cov.:
31
AF XY:
0.00
AC XY:
0
AN XY:
74320
show subpopulations
Gnomad4 AFR
AF:
0.0000724
Gnomad4 AMR
AF:
0.00
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.00
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.00
Gnomad4 OTH
AF:
0.00
Bravo
AF:
0.0000113

ClinVar

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

Submissions by phenotype

not specified Uncertain:1
Uncertain significance, criteria provided, single submitterclinical testingAmbry GeneticsSep 27, 2024The c.735T>G (p.N245K) alteration is located in exon 8 (coding exon 8) of the POLD3 gene. This alteration results from a T to G substitution at nucleotide position 735, causing the asparagine (N) at amino acid position 245 to be replaced by a lysine (K). Based on insufficient or conflicting evidence, the clinical significance of this alteration remains unclear. -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.15
BayesDel_addAF
Benign
-0.11
T
BayesDel_noAF
Benign
-0.39
CADD
Benign
18
DANN
Uncertain
0.98
DEOGEN2
Benign
0.055
T;.;.
Eigen
Benign
0.021
Eigen_PC
Benign
0.16
FATHMM_MKL
Uncertain
0.84
D
LIST_S2
Benign
0.72
T;T;T
M_CAP
Benign
0.0030
T
MetaRNN
Benign
0.24
T;T;T
MetaSVM
Benign
-0.91
T
MutationAssessor
Uncertain
2.4
M;.;.
PrimateAI
Uncertain
0.60
T
PROVEAN
Benign
0.15
N;N;N
REVEL
Benign
0.15
Sift
Benign
0.33
T;T;T
Sift4G
Benign
0.45
T;T;T
Polyphen
0.38
B;.;.
Vest4
0.27
MutPred
0.43
Loss of ubiquitination at K248 (P = 0.026);.;.;
MVP
0.61
MPC
0.16
ClinPred
0.35
T
GERP RS
5.7
Varity_R
0.076
gMVP
0.069

Splicing

Name
Calibrated prediction
Score
Prediction
dbscSNV1_ADA
Benign
0.059
dbscSNV1_RF
Benign
0.15
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

LitVar

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

Other links and lift over

dbSNP: rs1279876394; hg19: chr11-74336454; API