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GeneBe

8-31032746-G-C

Variant summary

Our verdict is Likely benign. Variant got -4 ACMG points: 0P and 4B. BP4_Strong

The NM_001323311.2(PURG):c.37C>G(p.Arg13Gly) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000418 in 1,436,528 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 13/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.000013 ( 0 hom., cov: 32)
Exomes 𝑓: 0.0000031 ( 0 hom. )

Consequence

PURG
NM_001323311.2 missense

Scores

3
15

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 0.876
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]

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ACMG classification

Classification made for transcript

Verdict is Likely_benign. Variant got -4 ACMG points.

BP4
Computational evidence support a benign effect (MetaRNN=0.054329604).

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
PURGNM_001323311.2 linkuse as main transcriptc.37C>G p.Arg13Gly missense_variant 2/2 ENST00000523392.2
PURGNM_013357.2 linkuse as main transcriptc.37C>G p.Arg13Gly missense_variant 1/1
PURGNM_001015508.3 linkuse as main transcriptc.37C>G p.Arg13Gly missense_variant 1/2
PURGNM_001323312.2 linkuse as main transcriptc.37C>G p.Arg13Gly missense_variant 2/3

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
PURGENST00000523392.2 linkuse as main transcriptc.37C>G p.Arg13Gly missense_variant 2/23 NM_001323311.2 P1Q9UJV8-1
PURGENST00000339382.3 linkuse as main transcriptc.37C>G p.Arg13Gly missense_variant 1/21 Q9UJV8-2
PURGENST00000475541.2 linkuse as main transcriptc.37C>G p.Arg13Gly missense_variant 1/1 P1Q9UJV8-1

Frequencies

GnomAD3 genomes
AF:
0.0000133
AC:
2
AN:
150408
Hom.:
0
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.00
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.0000659
Gnomad ASJ
AF:
0.00
Gnomad EAS
AF:
0.00
Gnomad SAS
AF:
0.000211
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.00
Gnomad OTH
AF:
0.00
GnomAD4 exome
AF:
0.00000311
AC:
4
AN:
1286000
Hom.:
0
Cov.:
31
AF XY:
0.00000643
AC XY:
4
AN XY:
622292
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:
0.0000341
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
9.76e-7
Gnomad4 OTH exome
AF:
0.0000189
GnomAD4 genome
AF:
0.0000133
AC:
2
AN:
150528
Hom.:
0
Cov.:
32
AF XY:
0.0000136
AC XY:
1
AN XY:
73520
show subpopulations
Gnomad4 AFR
AF:
0.00
Gnomad4 AMR
AF:
0.0000659
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.000211
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.00
Gnomad4 OTH
AF:
0.00
Bravo
AF:
0.00000756

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 GeneticsApr 07, 2023The c.37C>G (p.R13G) alteration is located in exon 1 (coding exon 1) of the PURG gene. This alteration results from a C to G substitution at nucleotide position 37, causing the arginine (R) at amino acid position 13 to be replaced by a glycine (G). 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
Benign
0.055
BayesDel_addAF
Benign
-0.15
T
BayesDel_noAF
Benign
-0.46
Cadd
Benign
20
Dann
Uncertain
0.98
Eigen
Benign
-0.45
Eigen_PC
Benign
-0.28
FATHMM_MKL
Uncertain
0.78
D
LIST_S2
Benign
0.62
T;T;T
M_CAP
Benign
0.082
D
MetaRNN
Benign
0.054
T;T;T
MetaSVM
Benign
-1.1
T
MutationAssessor
Benign
0.55
N;N;.
MutationTaster
Benign
0.99
N;N
PrimateAI
Uncertain
0.76
T
PROVEAN
Benign
-0.070
N;N;.
REVEL
Benign
0.063
Sift
Benign
0.25
T;T;.
Sift4G
Benign
0.41
T;T;.
Polyphen
0.0
B;B;.
Vest4
0.29
MutPred
0.37
Loss of methylation at R13 (P = 7e-04);Loss of methylation at R13 (P = 7e-04);Loss of methylation at R13 (P = 7e-04);
MVP
0.068
MPC
1.1
ClinPred
0.43
T
GERP RS
3.1
Varity_R
0.16
gMVP
0.38

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

LitVar

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

Other links and lift over

dbSNP: rs566964162; hg19: chr8-30890262; COSMIC: COSV53307489; COSMIC: COSV53307489; API