Genetic Variant PURG:p.Arg273Met (chr8-31031965-C-A) – ACMG Classification: Uncertain_significance (2 pts)

Variant summary

Our verdict is The variant received 2 classification points (ACGS-UK Somatic Oncogenicity v2025). O3_Moderate

The NM_001323311.2(PURG):c.818G>T (p.Arg273Met) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant is present but has an allele frequency of zero in the gnomAD population database. Splicing prediction tools (SpliceAI) predict no significant impact on normal splicing. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar. Other variants at the same amino acid position have been reported in ClinVar (not pathogenic): p.R273K: Uncertain_significance (ClinVar VariationId 3149826, 1 star)

Frequency

Genomes: not found (cov: 32)

Exomes 𝑓: 0.0000014 ( 0 hom. )

Consequence

PURG
NM_001323311.2 missense

Scores

Clinical Significance

Not reported in ClinVar

Conservation

PhyloP100: 6.17

Publications

0 publications found

Variant links:

Genes affected

PURG (HGNC:17930): (purine rich element binding protein G) The exact function of this gene is not known, however, its encoded product is highly similar to purine-rich element binding protein A. The latter is a DNA-binding protein which binds preferentially to the single strand of the purine-rich element termed PUR, and has been implicated in the control of both DNA replication and transcription. This gene lies in close proximity to the Werner syndrome gene, but on the opposite strand, on chromosome 8p11. [provided by RefSeq, Apr 2016]

PURG links:

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new If you want to explore the variant's impact on the transcript NM_001323311.2, check out the Mutation Effect Viewer. This is especially useful for frameshift variants or if you want to visualize the effect of exon loss / intron retention.

Classification according to ACGS-UK Somatic Oncogenicity v2025

Classification was made for transcript

Our verdict: Uncertain_significance. The variant received 2 points.

Absent or extremely rare in gnomAD (AC ≤ 2) — O3 moderate; GnomAD: AF = 0.000000, AC = 2 — absent/extremely rare (O3 moderate [+2])

Variant Effect in Transcripts

Automated classification analysis was done for transcript: NM_001323311.2. You can select a different transcript below to see updated classification assignments.

RefSeq Transcripts

Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
PURG	NM_001323311.2	MANE Select	c.818G>T	p.Arg273Met	missense	Exon 2 of 2	NP_001310240.1	Q9UJV8-1
PURG	NM_013357.2		c.818G>T	p.Arg273Met	missense	Exon 1 of 1	NP_037489.1	Q9UJV8-1
PURG	NM_001015508.3		c.818G>T	p.Arg273Met	missense	Exon 1 of 2	NP_001015508.1	Q9UJV8-2

Ensembl Transcripts

Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
PURG	ENST00000523392.2	TSL:3 MANE Select	c.818G>T	p.Arg273Met	missense	Exon 2 of 2	ENSP00000466881.2	Q9UJV8-1
PURG	ENST00000339382.3	TSL:1	c.818G>T	p.Arg273Met	missense	Exon 1 of 2	ENSP00000345168.2	Q9UJV8-2
PURG	ENST00000475541.2	TSL:6	c.818G>T	p.Arg273Met	missense	Exon 1 of 1	ENSP00000418721.1	Q9UJV8-1

Frequencies

GnomAD3 genomes

Cov.:

GnomAD4 exome

AF:

0.00000137

AC:

AN:

1461858

Hom.:

Cov.:

AF XY:

0.00000138

AC XY:

AN XY:

727228

show subpopulations

African (AFR)

AF:

0.00

AC:

AN:

33480

American (AMR)

AF:

0.00

AC:

AN:

44724

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

26136

East Asian (EAS)

AF:

0.00

AC:

AN:

39700

South Asian (SAS)

AF:

0.00

AC:

AN:

86258

European-Finnish (FIN)

AF:

0.00

AC:

AN:

53390

Middle Eastern (MID)

AF:

0.00

AC:

AN:

5768

European-Non Finnish (NFE)

AF:

0.00000180

AC:

AN:

1112008

Other (OTH)

AF:

0.00

AC:

AN:

60394

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.525

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Exome Het

Variant carriers

<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

Cov.:

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.9

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Pathogenic

0.97

BayesDel_addAF

Pathogenic

0.23

BayesDel_noAF

Uncertain

0.090

CADD

Pathogenic

(source)

DANN

Benign

0.96

DEOGEN2

Uncertain

0.59

Eigen

Pathogenic

0.79

Eigen_PC

Pathogenic

0.75

FATHMM_MKL

Pathogenic

0.98

LIST_S2

Uncertain

0.96

M_CAP

Benign

0.045

MetaRNN

Pathogenic

0.86

MetaSVM

Benign

-0.62

MutationAssessor

Uncertain

2.1

PhyloP100

6.2

PrimateAI

Pathogenic

0.91

PROVEAN

Uncertain

-2.4

REVEL

Uncertain

0.39

Sift

Benign

0.035

Sift4G

Uncertain

0.043

Varity_R

0.25

gMVP

0.80

Mutation Taster

=30/70

disease causing

(source)

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

MaxEntScan Visualizer can be used to analyze the impact of this mutation on the neighboring sequence.

Publications

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Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

Publications

Classification according to ACGS-UK Somatic Oncogenicity v2025

Variant Effect in Transcripts

RefSeq Transcripts

Ensembl Transcripts

Frequencies

Age Distribution

ClinVar

Computational scores

Splicing

Publications

Other links and lift over