rs367766963

Variant summary

Our verdict is Benign. Variant got -9 ACMG points: 0P and 9B. BP4_StrongBP6BS2

The NM_002691.4(POLD1):​c.3121-14G>A variant causes a splice polypyrimidine tract, intron change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000132 in 1,586,784 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Conflicting classifications of pathogenicity (no stars).

Frequency

Genomes: 𝑓 0.00030 ( 0 hom., cov: 34)
Exomes 𝑓: 0.00011 ( 0 hom. )

Consequence

POLD1
NM_002691.4 splice_polypyrimidine_tract, intron

Scores

2

Clinical Significance

Conflicting classifications of pathogenicity criteria provided, conflicting classifications U:1B:5

Conservation

PhyloP100: 0.0280
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 Benign. Variant got -9 ACMG points.

BP4
Computational evidence support a benign effect (BayesDel_noAF=-0.8).
BP6
Variant 19-50417158-G-A is Benign according to our data. Variant chr19-50417158-G-A is described in ClinVar as [Conflicting_classifications_of_pathogenicity]. Clinvar id is 372064.We mark this variant Likely_benign, oryginal submissions are: {Likely_benign=4, Uncertain_significance=1}.
BS2
High AC in GnomAd4 at 46 AD gene.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
POLD1NM_002691.4 linkuse as main transcriptc.3121-14G>A splice_polypyrimidine_tract_variant, intron_variant ENST00000440232.7 NP_002682.2

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
POLD1ENST00000440232.7 linkuse as main transcriptc.3121-14G>A splice_polypyrimidine_tract_variant, intron_variant 1 NM_002691.4 ENSP00000406046 P1

Frequencies

GnomAD3 genomes
AF:
0.000283
AC:
43
AN:
152074
Hom.:
0
Cov.:
34
show subpopulations
Gnomad AFR
AF:
0.000918
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.000131
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:
0.0000441
Gnomad OTH
AF:
0.00
GnomAD3 exomes
AF:
0.000135
AC:
28
AN:
206784
Hom.:
0
AF XY:
0.000116
AC XY:
13
AN XY:
112170
show subpopulations
Gnomad AFR exome
AF:
0.000645
Gnomad AMR exome
AF:
0.000263
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.000128
Gnomad SAS exome
AF:
0.0000371
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.0000998
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.000114
AC:
164
AN:
1434590
Hom.:
0
Cov.:
33
AF XY:
0.000115
AC XY:
82
AN XY:
711624
show subpopulations
Gnomad4 AFR exome
AF:
0.000607
Gnomad4 AMR exome
AF:
0.000219
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.0000524
Gnomad4 SAS exome
AF:
0.0000120
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.000115
Gnomad4 OTH exome
AF:
0.0000844
GnomAD4 genome
AF:
0.000302
AC:
46
AN:
152194
Hom.:
0
Cov.:
34
AF XY:
0.000296
AC XY:
22
AN XY:
74426
show subpopulations
Gnomad4 AFR
AF:
0.000987
Gnomad4 AMR
AF:
0.000131
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.00
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.0000441
Gnomad4 OTH
AF:
0.00
Alfa
AF:
0.000260
Hom.:
0
Bravo
AF:
0.000291
Asia WGS
AF:
0.000289
AC:
1
AN:
3478

ClinVar

Significance: Conflicting classifications of pathogenicity
Submissions summary: Uncertain:1Benign:5
Revision: criteria provided, conflicting classifications
LINK: link

Submissions by phenotype

Colorectal cancer, susceptibility to, 10 Benign:2
Likely benign, criteria provided, single submitterclinical testingCounsylNov 07, 2016- -
Likely benign, criteria provided, single submitterclinical testingLabcorp Genetics (formerly Invitae), LabcorpJan 31, 2024- -
Hereditary cancer-predisposing syndrome Uncertain:1
Uncertain significance, criteria provided, single submitterclinical testingAmbry GeneticsOct 17, 2015The c.3121-14G>A intronic alteration consists of a G to A substitution 14 nucleotides before coding exon 25 in the POLD1 gene. Based on insufficient or conflicting evidence, the clinical significance of this alteration remains unclear. -
not specified Benign:1
Likely benign, criteria provided, single submitterclinical testingGeneDxOct 24, 2016This variant is considered likely benign or benign based on one or more of the following criteria: it is a conservative change, it occurs at a poorly conserved position in the protein, it is predicted to be benign by multiple in silico algorithms, and/or has population frequency not consistent with disease. -
Polymerase proofreading-related adenomatous polyposis Benign:1
Likely benign, no assertion criteria providedclinical testingDepartment of Pathology and Laboratory Medicine, Sinai Health System-The POLD1 c.3121-14G>A variant was not identified in the literature. The variant was identified in dbSNP (ID: rs367766963) as “With Likely benign allele” and ClinVar (classified as likely benign by GeneDx, PreventionGenetics and Counsyl). The variant was identified in control databases in 36 of 231642 chromosomes at a frequency of 0.0002 (Genome Aggregation Database Feb 27, 2017). The variant was observed in the following populations: African in 15 of 20212 chromosomes (freq: 0.0007), Latino in 9 of 30460 chromosomes (freq: 0.0003), European Non-Finnish in 9 of 102726 chromosomes (freq: 0.00009), East Asian in 2 of 16182 chromosomes (freq: 0.0001), and South Asian in 1 of 27054 chromosomes (freq: 0.00004); it was not observed in the Other, Ashkenazi Jewish, or European Finnish populations. The variant occurs outside of the splicing consensus sequence and in silico or computational prediction software programs (SpliceSiteFinder, MaxEntScan, NNSPLICE, GeneSplicer) do not predict a difference in splicing. In summary, based on the above information, the clinical significance of this variant cannot be determined with certainty at this time although we would lean towards a more benign role for this variant. This variant is classified as likely benign. -
not provided Benign:1
Likely benign, criteria provided, single submitterclinical testingPreventionGenetics, part of Exact SciencesJul 20, 2017- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
BayesDel_noAF
Benign
-0.80
CADD
Benign
11
DANN
Benign
0.93
RBP_binding_hub_radar
1.0
RBP_regulation_power_radar
2.3

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: rs367766963; hg19: chr19-50920415; API