rs771789997

Variant summary

Our verdict is Uncertain significance. The variant received 1 ACMG points: 1P and 0B. PP3

The NM_002691.4(POLD1):​c.2969G>A​(p.Arg990His) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000102 in 1,563,992 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 (★★). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. R990C) has been classified as Uncertain significance.

Frequency

Genomes: 𝑓 0.000013 ( 0 hom., cov: 34)
Exomes 𝑓: 0.0000099 ( 0 hom. )

Consequence

POLD1
NM_002691.4 missense

Scores

7
6
5

Clinical Significance

Uncertain significance criteria provided, multiple submitters, no conflicts U:4

Conservation

PhyloP100: 2.38

Publications

6 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 1 ACMG points.

PP3
MetaRNN computational evidence supports a deleterious effect, 0.781

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.2969G>Ap.Arg990His
missense
Exon 24 of 27NP_002682.2P28340
POLD1
NM_001308632.1
c.3047G>Ap.Arg1016His
missense
Exon 23 of 26NP_001295561.1M0R2B7
POLD1
NM_001256849.1
c.2969G>Ap.Arg990His
missense
Exon 24 of 27NP_001243778.1P28340

Ensembl Transcripts

Sel.
GeneTranscriptTagsHGVScHGVSpEffectExon RankProteinUniProt
POLD1
ENST00000440232.7
TSL:1 MANE Select
c.2969G>Ap.Arg990His
missense
Exon 24 of 27ENSP00000406046.1P28340
POLD1
ENST00000595904.6
TSL:1
c.3047G>Ap.Arg1016His
missense
Exon 24 of 27ENSP00000472445.1M0R2B7
POLD1
ENST00000599857.7
TSL:1
c.2969G>Ap.Arg990His
missense
Exon 24 of 27ENSP00000473052.1P28340

Frequencies

GnomAD3 genomes
AF:
0.0000131
AC:
2
AN:
152196
Hom.:
0
Cov.:
34
show subpopulations
Gnomad AFR
AF:
0.0000241
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:
0.0000236
AC:
4
AN:
169490
AF XY:
0.0000324
show subpopulations
Gnomad AFR exome
AF:
0.000109
Gnomad AMR exome
AF:
0.00
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.0000420
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.00000992
AC:
14
AN:
1411796
Hom.:
0
Cov.:
34
AF XY:
0.0000100
AC XY:
7
AN XY:
698868
show subpopulations
African (AFR)
AF:
0.00
AC:
0
AN:
32272
American (AMR)
AF:
0.00
AC:
0
AN:
38076
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
25306
East Asian (EAS)
AF:
0.00
AC:
0
AN:
36930
South Asian (SAS)
AF:
0.00
AC:
0
AN:
80734
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
43898
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
5246
European-Non Finnish (NFE)
AF:
0.0000128
AC:
14
AN:
1090706
Other (OTH)
AF:
0.00
AC:
0
AN:
58628
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.446
Heterozygous variant carriers
0
1
2
3
4
5
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:
0.0000131
AC:
2
AN:
152196
Hom.:
0
Cov.:
34
AF XY:
0.00
AC XY:
0
AN XY:
74338
show subpopulations
African (AFR)
AF:
0.0000241
AC:
1
AN:
41438
American (AMR)
AF:
0.0000654
AC:
1
AN:
15292
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
3468
East Asian (EAS)
AF:
0.00
AC:
0
AN:
5192
South Asian (SAS)
AF:
0.00
AC:
0
AN:
4838
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
10632
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
316
European-Non Finnish (NFE)
AF:
0.00
AC:
0
AN:
68016
Other (OTH)
AF:
0.00
AC:
0
AN:
2092
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.575
Heterozygous variant carriers
0
0
1
1
2
2
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Genome 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
Alfa
AF:
0.0000712
Hom.:
0
Bravo
AF:
0.00000756
ExAC
AF:
0.0000254
AC:
3

ClinVar

ClinVar submissions
Significance:Uncertain significance
Revision:criteria provided, multiple submitters, no conflicts
View on ClinVar
Pathogenic
VUS
Benign
Condition
-
1
-
Colorectal cancer, susceptibility to, 10 (1)
-
1
-
Hereditary cancer-predisposing syndrome (1)
-
1
-
not provided (1)
-
1
-
POLD1-related disorder (1)

Computational scores

Source: dbNSFP v4.9

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.31
BayesDel_addAF
Benign
-0.069
T
BayesDel_noAF
Benign
-0.34
CADD
Pathogenic
27
DANN
Pathogenic
1.0
DEOGEN2
Pathogenic
0.81
D
Eigen
Uncertain
0.66
Eigen_PC
Uncertain
0.43
FATHMM_MKL
Uncertain
0.88
D
LIST_S2
Uncertain
0.95
D
M_CAP
Pathogenic
0.52
D
MetaRNN
Pathogenic
0.78
D
MetaSVM
Benign
-0.76
T
MutationAssessor
Pathogenic
4.6
H
PhyloP100
2.4
PrimateAI
Pathogenic
0.91
D
PROVEAN
Pathogenic
-4.6
D
REVEL
Benign
0.26
Sift
Uncertain
0.0010
D
Sift4G
Uncertain
0.017
D
Polyphen
1.0
D
Vest4
0.57
MutPred
0.58
Loss of sheet (P = 0.0228)
MVP
0.75
MPC
1.8
ClinPred
1.0
D
GERP RS
2.7
RBP_binding_hub_radar
0.0
RBP_regulation_power_radar
1.2
Varity_R
0.54
gMVP
0.53
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: rs771789997; hg19: chr19-50919882; COSMIC: COSV99569887; COSMIC: COSV99569887; API