rs200857997

Variant summary

Our verdict is Likely benign. Variant got -2 ACMG points: 4P and 6B. PM1PM5BP4_ModerateBS2

The NM_152683.4(PRIMPOL):ā€‹c.265T>Cā€‹(p.Tyr89His) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000011 in 1,458,524 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 12/20 in silico tools predict a benign outcome for this variant. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar. Another variant affecting the same amino acid position, but resulting in a different missense (i.e. Y89D) has been classified as Pathogenic.

Frequency

Genomes: not found (cov: 32)
Exomes š‘“: 0.000011 ( 0 hom. )

Consequence

PRIMPOL
NM_152683.4 missense

Scores

3
15

Clinical Significance

Not reported in ClinVar

Conservation

PhyloP100: 3.54
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 made for transcript

Verdict is Likely_benign. Variant got -2 ACMG points.

PM1
In a mutagenesis_site Reduced DNA primase activity. (size 0) in uniprot entity PRIPO_HUMAN
PM5
Other missense variant is known to change same aminoacid residue: Variant chr4-184659424-T-G is described in Lovd as [Pathogenic].
BP4
Computational evidence support a benign effect (MetaRNN=0.20230415).
BS2
High AC in GnomAdExome4 at 16 AD gene.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
PRIMPOLNM_152683.4 linkuse as main transcriptc.265T>C p.Tyr89His missense_variant 4/14 ENST00000314970.11 NP_689896.1 Q96LW4-1

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
PRIMPOLENST00000314970.11 linkuse as main transcriptc.265T>C p.Tyr89His missense_variant 4/141 NM_152683.4 ENSP00000313816.6 Q96LW4-1

Frequencies

GnomAD3 genomes
Cov.:
32
GnomAD3 exomes
AF:
0.0000119
AC:
3
AN:
251394
Hom.:
0
AF XY:
0.00
AC XY:
0
AN XY:
135882
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.00
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad SAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.0000264
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.0000110
AC:
16
AN:
1458524
Hom.:
0
Cov.:
28
AF XY:
0.0000110
AC XY:
8
AN XY:
725792
show subpopulations
Gnomad4 AFR exome
AF:
0.00
Gnomad4 AMR exome
AF:
0.00
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.00
Gnomad4 SAS exome
AF:
0.00
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.0000144
Gnomad4 OTH exome
AF:
0.00
GnomAD4 genome
Cov.:
32
Alfa
AF:
0.0000201
Hom.:
0

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.13
BayesDel_addAF
Benign
-0.15
T
BayesDel_noAF
Benign
-0.39
CADD
Benign
21
DANN
Uncertain
0.98
DEOGEN2
Benign
0.0097
T;T;.
Eigen
Benign
-0.32
Eigen_PC
Benign
-0.22
FATHMM_MKL
Uncertain
0.92
D
LIST_S2
Benign
0.66
.;T;T
M_CAP
Benign
0.026
D
MetaRNN
Benign
0.20
T;T;T
MetaSVM
Benign
-1.1
T
PrimateAI
Uncertain
0.51
T
PROVEAN
Benign
-1.5
N;N;N
REVEL
Benign
0.14
Sift
Benign
0.039
D;D;D
Sift4G
Benign
0.11
T;T;T
Polyphen
0.20
B;B;.
Vest4
0.30
MutPred
0.42
Loss of stability (P = 0.0483);Loss of stability (P = 0.0483);Loss of stability (P = 0.0483);
MVP
0.12
MPC
0.039
ClinPred
0.89
D
GERP RS
3.0
Varity_R
0.72
gMVP
0.68

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

LitVar

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

Other links and lift over

dbSNP: rs200857997; hg19: chr4-185580578; API