4-184661787-C-T

Variant summary

Our verdict is Likely benign. The variant received -3 ACMG points: 1P and 4B. PP3BS2

The NM_152683.4(PRIMPOL):​c.292C>T​(p.His98Tyr) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.000283 in 1,603,102 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 0.00024 ( 0 hom., cov: 32)
Exomes 𝑓: 0.00029 ( 0 hom. )

Consequence

PRIMPOL
NM_152683.4 missense

Scores

9
6
4

Clinical Significance

Uncertain significance criteria provided, multiple submitters, no conflicts U:2

Conservation

PhyloP100: 7.29

Publications

2 publications found
Variant links:
Genes affected
PRIMPOL (HGNC:26575): (primase and DNA directed polymerase) This gene encodes a DNA primase-polymerase that belongs to a superfamily of archaeao-eukaryotic primases. Members of this family have primase activity, catalyzing the synthesis of short RNA primers that serve as starting points for DNA synthesis, as well as DNA polymerase activity. The encoded protein facilitates DNA damage tolerance by mediating uninterrupted fork progression after UV irradiation and reinitiating DNA synthesis. An allelic variant in this gene is associated with myopia 22. Alternative splicing results in multiple transcript variants. [provided by RefSeq, Sep 2016]

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Likely_benign. The variant received -3 ACMG points.

PP3
MetaRNN computational evidence supports a deleterious effect, 0.822
BS2
High AC in GnomAd4 at 36 AD gene.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
PRIMPOLNM_152683.4 linkc.292C>T p.His98Tyr missense_variant Exon 5 of 14 ENST00000314970.11 NP_689896.1 Q96LW4-1

Ensembl

Gene Transcript HGVSc HGVSp Effect Exon rank TSL MANE Protein Appris UniProt
PRIMPOLENST00000314970.11 linkc.292C>T p.His98Tyr missense_variant Exon 5 of 14 1 NM_152683.4 ENSP00000313816.6 Q96LW4-1

Frequencies

GnomAD3 genomes
AF:
0.000197
AC:
30
AN:
152164
Hom.:
0
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.000290
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.0000655
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:
0.000250
Gnomad OTH
AF:
0.00
GnomAD2 exomes
AF:
0.000151
AC:
37
AN:
245688
AF XY:
0.000143
show subpopulations
Gnomad AFR exome
AF:
0.000250
Gnomad AMR exome
AF:
0.00
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.0000464
Gnomad NFE exome
AF:
0.000286
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.000287
AC:
417
AN:
1450820
Hom.:
0
Cov.:
29
AF XY:
0.000263
AC XY:
190
AN XY:
722048
show subpopulations
African (AFR)
AF:
0.000212
AC:
7
AN:
32958
American (AMR)
AF:
0.00
AC:
0
AN:
43464
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
25924
East Asian (EAS)
AF:
0.00
AC:
0
AN:
39554
South Asian (SAS)
AF:
0.0000354
AC:
3
AN:
84786
European-Finnish (FIN)
AF:
0.0000188
AC:
1
AN:
53272
Middle Eastern (MID)
AF:
0.000349
AC:
2
AN:
5726
European-Non Finnish (NFE)
AF:
0.000346
AC:
382
AN:
1105280
Other (OTH)
AF:
0.000368
AC:
22
AN:
59856
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.466
Heterozygous variant carriers
0
19
38
57
76
95
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Exome Het
Variant carriers
0
20
40
60
80
100
<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:
0.000236
AC:
36
AN:
152282
Hom.:
0
Cov.:
32
AF XY:
0.000295
AC XY:
22
AN XY:
74464
show subpopulations
African (AFR)
AF:
0.000433
AC:
18
AN:
41552
American (AMR)
AF:
0.0000654
AC:
1
AN:
15284
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
3468
East Asian (EAS)
AF:
0.00
AC:
0
AN:
5190
South Asian (SAS)
AF:
0.00
AC:
0
AN:
4832
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
10610
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
294
European-Non Finnish (NFE)
AF:
0.000250
AC:
17
AN:
68030
Other (OTH)
AF:
0.00
AC:
0
AN:
2110
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.482
Heterozygous variant carriers
0
1
3
4
6
7
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:
0.000238
Hom.:
0
Bravo
AF:
0.000208
TwinsUK
AF:
0.000270
AC:
1
ALSPAC
AF:
0.00
AC:
0
ESP6500AA
AF:
0.000227
AC:
1
ESP6500EA
AF:
0.000233
AC:
2
ExAC
AF:
0.000157
AC:
19
Asia WGS
AF:
0.000289
AC:
1
AN:
3478
EpiCase
AF:
0.000275
EpiControl
AF:
0.000478

ClinVar

Significance: Uncertain significance
Submissions summary: Uncertain:2
Revision: criteria provided, multiple submitters, no conflicts
LINK: link

Submissions by phenotype

not specified Uncertain:1
Aug 18, 2021
Ambry Genetics
Significance:Uncertain significance
Review Status:criteria provided, single submitter
Collection Method:clinical testing

The c.292C>T (p.H98Y) alteration is located in exon 5 (coding exon 3) of the PRIMPOL gene. This alteration results from a C to T substitution at nucleotide position 292, causing the histidine (H) at amino acid position 98 to be replaced by a tyrosine (Y). Based on insufficient or conflicting evidence, the clinical significance of this alteration remains unclear. -

Myopia 22, autosomal dominant Uncertain:1
Aug 28, 2023
Department of Pathology and Laboratory Medicine, Sinai Health System
Significance:Uncertain significance
Review Status:criteria provided, single submitter
Collection Method:research

- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Uncertain
0.45
BayesDel_addAF
Uncertain
0.088
D
BayesDel_noAF
Pathogenic
0.19
CADD
Pathogenic
26
DANN
Uncertain
1.0
DEOGEN2
Benign
0.26
T;T;.
Eigen
Pathogenic
0.91
Eigen_PC
Pathogenic
0.87
FATHMM_MKL
Pathogenic
0.98
D
LIST_S2
Uncertain
0.90
.;D;D
M_CAP
Benign
0.063
D
MetaRNN
Pathogenic
0.82
D;D;D
MetaSVM
Benign
-0.36
T
MutationAssessor
Pathogenic
3.6
H;H;H
PhyloP100
7.3
PrimateAI
Uncertain
0.70
T
PROVEAN
Pathogenic
-4.8
D;D;D
REVEL
Pathogenic
0.65
Sift
Pathogenic
0.0
D;D;D
Sift4G
Uncertain
0.0030
D;D;D
Polyphen
1.0
D;D;.
Vest4
0.97
MVP
0.59
MPC
0.25
ClinPred
0.92
D
GERP RS
5.8
Varity_R
0.65
gMVP
0.83
Mutation Taster
=15/85
disease causing

Splicing

Name
Calibrated prediction
Score
Prediction
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

Other links and lift over

dbSNP: rs150123773; hg19: chr4-185582941; API