chr8-31031965-C-T

Variant summary

Our verdict is Uncertain significance. Variant got 1 ACMG points: 1P and 0B. PP3

The NM_001323311.2(PURG):​c.818G>A​(p.Arg273Lys) variant causes a missense change. The variant allele was found at a frequency of 0.00000372 in 1,614,016 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 0.000026 ( 0 hom., cov: 32)
Exomes 𝑓: 0.0000014 ( 0 hom. )

Consequence

PURG
NM_001323311.2 missense

Scores

6
2
11

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 6.17
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]

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 1 ACMG points.

PP3
MetaRNN computational evidence supports a deleterious effect, 0.776

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
PURGNM_001323311.2 linkuse as main transcriptc.818G>A p.Arg273Lys missense_variant 2/2 ENST00000523392.2
PURGNM_013357.2 linkuse as main transcriptc.818G>A p.Arg273Lys missense_variant 1/1
PURGNM_001015508.3 linkuse as main transcriptc.818G>A p.Arg273Lys missense_variant 1/2
PURGNM_001323312.2 linkuse as main transcriptc.818G>A p.Arg273Lys missense_variant 2/3

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
PURGENST00000523392.2 linkuse as main transcriptc.818G>A p.Arg273Lys missense_variant 2/23 NM_001323311.2 P1Q9UJV8-1
PURGENST00000339382.3 linkuse as main transcriptc.818G>A p.Arg273Lys missense_variant 1/21 Q9UJV8-2
PURGENST00000475541.2 linkuse as main transcriptc.818G>A p.Arg273Lys missense_variant 1/1 P1Q9UJV8-1

Frequencies

GnomAD3 genomes
AF:
0.0000263
AC:
4
AN:
152158
Hom.:
0
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.0000724
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:
0.00
Gnomad OTH
AF:
0.00
GnomAD3 exomes
AF:
0.00000795
AC:
2
AN:
251444
Hom.:
0
AF XY:
0.00
AC XY:
0
AN XY:
135900
show subpopulations
Gnomad AFR exome
AF:
0.000123
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:
0.00
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.00000137
AC:
2
AN:
1461858
Hom.:
0
Cov.:
31
AF XY:
0.00000138
AC XY:
1
AN XY:
727228
show subpopulations
Gnomad4 AFR exome
AF:
0.0000597
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:
0.00
Gnomad4 OTH exome
AF:
0.00
GnomAD4 genome
AF:
0.0000263
AC:
4
AN:
152158
Hom.:
0
Cov.:
32
AF XY:
0.0000269
AC XY:
2
AN XY:
74344
show subpopulations
Gnomad4 AFR
AF:
0.0000724
Gnomad4 AMR
AF:
0.0000655
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.00
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.00
Gnomad4 OTH
AF:
0.00
Bravo
AF:
0.0000189
ExAC
AF:
0.00000824
AC:
1

ClinVar

Significance: Uncertain significance
Submissions summary: Uncertain:1
Revision: criteria provided, single submitter
LINK: link

Submissions by phenotype

not specified Uncertain:1
Uncertain significance, criteria provided, single submitterclinical testingAmbry GeneticsNov 29, 2023The c.818G>A (p.R273K) alteration is located in exon 1 (coding exon 1) of the PURG gene. This alteration results from a G to A substitution at nucleotide position 818, causing the arginine (R) at amino acid position 273 to be replaced by a lysine (K). Based on insufficient or conflicting evidence, the clinical significance of this alteration remains unclear. -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Pathogenic
0.61
BayesDel_addAF
Benign
-0.092
T
BayesDel_noAF
Benign
-0.13
CADD
Pathogenic
27
DANN
Uncertain
1.0
DEOGEN2
Benign
0.24
.;T
Eigen
Pathogenic
0.71
Eigen_PC
Pathogenic
0.70
FATHMM_MKL
Pathogenic
0.98
D
LIST_S2
Uncertain
0.97
D;D
M_CAP
Benign
0.027
D
MetaRNN
Pathogenic
0.78
D;D
MetaSVM
Benign
-0.88
T
MutationAssessor
Benign
1.8
L;L
MutationTaster
Benign
1.0
D;D
PrimateAI
Pathogenic
0.92
D
PROVEAN
Benign
-1.0
N;N
REVEL
Benign
0.25
Sift
Benign
0.065
T;T
Sift4G
Benign
0.096
T;T
Polyphen
1.0
D;D
Vest4
0.72
MutPred
0.67
Gain of methylation at R273 (P = 0.0168);Gain of methylation at R273 (P = 0.0168);
MVP
0.31
MPC
1.9
ClinPred
0.69
D
GERP RS
5.3
Varity_R
0.31
gMVP
0.77

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: rs765564331; hg19: chr8-30889481; COSMIC: COSV53305774; COSMIC: COSV53305774; API