NM_002691.4:c.2464G>A

Variant summary

Our verdict is Uncertain significance. The variant received 0 ACMG points: 1P and 1B. PP3BP6

The NM_002691.4(POLD1):​c.2464G>A​(p.Asp822Asn) variant causes a missense change. The variant allele was found at a frequency of 0.00000435 in 1,608,798 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 Conflicting classifications of pathogenicity (no stars). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. D822A) has been classified as Uncertain significance.

Frequency

Genomes: 𝑓 0.0000066 ( 0 hom., cov: 33)
Exomes 𝑓: 0.0000041 ( 0 hom. )

Consequence

POLD1
NM_002691.4 missense

Scores

6
8
4

Clinical Significance

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

Conservation

PhyloP100: 6.11

Publications

0 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

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Uncertain_significance. The variant received 0 ACMG points.

PP3
MetaRNN computational evidence supports a deleterious effect, 0.774
BP6
Variant 19-50414890-G-A is Benign according to our data. Variant chr19-50414890-G-A is described in ClinVar as Conflicting_classifications_of_pathogenicity. ClinVar VariationId is 408066.

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

Sel.
GeneTranscriptTagsHGVScHGVSpEffectExon RankProteinUniProt
POLD1
NM_002691.4
MANE Select
c.2464G>Ap.Asp822Asn
missense
Exon 20 of 27NP_002682.2P28340
POLD1
NM_001308632.1
c.2542G>Ap.Asp848Asn
missense
Exon 19 of 26NP_001295561.1M0R2B7
POLD1
NM_001256849.1
c.2464G>Ap.Asp822Asn
missense
Exon 20 of 27NP_001243778.1P28340

Ensembl Transcripts

Sel.
GeneTranscriptTagsHGVScHGVSpEffectExon RankProteinUniProt
POLD1
ENST00000440232.7
TSL:1 MANE Select
c.2464G>Ap.Asp822Asn
missense
Exon 20 of 27ENSP00000406046.1P28340
POLD1
ENST00000595904.6
TSL:1
c.2542G>Ap.Asp848Asn
missense
Exon 20 of 27ENSP00000472445.1M0R2B7
POLD1
ENST00000599857.7
TSL:1
c.2464G>Ap.Asp822Asn
missense
Exon 20 of 27ENSP00000473052.1P28340

Frequencies

GnomAD3 genomes
AF:
0.00000657
AC:
1
AN:
152212
Hom.:
0
Cov.:
33
show subpopulations
Gnomad AFR
AF:
0.00
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.0000654
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
GnomAD2 exomes
AF:
0.0000121
AC:
3
AN:
248054
AF XY:
0.00000745
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.0000589
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.0000552
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.00
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.00000412
AC:
6
AN:
1456586
Hom.:
0
Cov.:
31
AF XY:
0.00000552
AC XY:
4
AN XY:
724304
show subpopulations
African (AFR)
AF:
0.00
AC:
0
AN:
33322
American (AMR)
AF:
0.0000225
AC:
1
AN:
44364
Ashkenazi Jewish (ASJ)
AF:
0.0000384
AC:
1
AN:
26024
East Asian (EAS)
AF:
0.0000254
AC:
1
AN:
39404
South Asian (SAS)
AF:
0.0000117
AC:
1
AN:
85798
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
53222
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
5754
European-Non Finnish (NFE)
AF:
0.00000180
AC:
2
AN:
1108596
Other (OTH)
AF:
0.00
AC:
0
AN:
60102
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.492
Heterozygous variant carriers
0
1
2
2
3
4
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Exome Het
Variant carriers
0
2
4
6
8
10
<30
30-35
35-40
40-45
45-50
50-55
55-60
60-65
65-70
70-75
75-80
>80
Age
GnomAD4 genome
AF:
0.00000657
AC:
1
AN:
152212
Hom.:
0
Cov.:
33
AF XY:
0.00
AC XY:
0
AN XY:
74360
show subpopulations
African (AFR)
AF:
0.00
AC:
0
AN:
41448
American (AMR)
AF:
0.0000654
AC:
1
AN:
15286
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
3470
East Asian (EAS)
AF:
0.00
AC:
0
AN:
5190
South Asian (SAS)
AF:
0.00
AC:
0
AN:
4836
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
10628
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
316
European-Non Finnish (NFE)
AF:
0.00
AC:
0
AN:
68032
Other (OTH)
AF:
0.00
AC:
0
AN:
2094
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.475
Heterozygous variant carriers
0
0
1
1
2
2
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance
Alfa
AF:
0.00
Hom.:
0
Bravo
AF:
0.0000189
ExAC
AF:
0.00000824
AC:
1

ClinVar

ClinVar submissions
Significance:Conflicting classifications of pathogenicity
Revision:criteria provided, conflicting classifications
View on ClinVar
Pathogenic
VUS
Benign
Condition
-
1
-
Colorectal cancer, susceptibility to, 10 (1)
-
-
1
Hereditary cancer-predisposing syndrome (1)

Computational scores

Source: dbNSFP v4.9

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Uncertain
0.34
BayesDel_addAF
Benign
-0.29
T
BayesDel_noAF
Benign
-0.48
CADD
Pathogenic
29
DANN
Uncertain
1.0
DEOGEN2
Benign
0.36
T
Eigen
Uncertain
0.66
Eigen_PC
Uncertain
0.51
FATHMM_MKL
Uncertain
0.88
D
LIST_S2
Uncertain
0.97
D
M_CAP
Pathogenic
0.40
D
MetaRNN
Pathogenic
0.77
D
MetaSVM
Benign
-0.66
T
MutationAssessor
Pathogenic
3.6
H
PhyloP100
6.1
PrimateAI
Pathogenic
0.79
T
PROVEAN
Pathogenic
-5.0
D
REVEL
Uncertain
0.35
Sift
Uncertain
0.0010
D
Sift4G
Pathogenic
0.0010
D
Polyphen
1.0
D
Vest4
0.52
MutPred
0.55
Loss of ubiquitination at K827 (P = 0.0747)
MVP
0.70
MPC
1.6
ClinPred
0.91
D
GERP RS
3.8
Varity_R
0.64
gMVP
0.66
Mutation Taster
=22/78
disease causing

Splicing

Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
0.0
Details are displayed if max score is > 0.2

Find out detailed SpliceAI scores and Pangolin per-transcript scores at spliceailookup.broadinstitute.org

Publications

Other links and lift over

dbSNP: rs778972543; hg19: chr19-50918147; API