NM_001323311.2:c.758G>T

Variant summary

Our verdict is Benign. The variant received -8 ACMG points: 0P and 8B. BP4_StrongBS2

The NM_001323311.2(PURG):​c.758G>T​(p.Gly253Val) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000186 in 1,614,086 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 16/22 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.0000066 ( 0 hom., cov: 32)
Exomes 𝑓: 0.000020 ( 0 hom. )

Consequence

PURG
NM_001323311.2 missense

Scores

1
18

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 2.19

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]

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Benign. The variant received -8 ACMG points.

BP4
Computational evidence support a benign effect (MetaRNN=0.026130795).
BS2
High AC in GnomAdExome4 at 29 AD gene.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
PURGNM_001323311.2 linkc.758G>T p.Gly253Val missense_variant Exon 2 of 2 ENST00000523392.2 NP_001310240.1 Q9UJV8-1
PURGNM_013357.2 linkc.758G>T p.Gly253Val missense_variant Exon 1 of 1 NP_037489.1 Q9UJV8-1
PURGNM_001015508.3 linkc.758G>T p.Gly253Val missense_variant Exon 1 of 2 NP_001015508.1 Q9UJV8-2
PURGNM_001323312.2 linkc.758G>T p.Gly253Val missense_variant Exon 2 of 3 NP_001310241.1 Q9UJV8-2

Ensembl

Gene Transcript HGVSc HGVSp Effect Exon rank TSL MANE Protein Appris UniProt
PURGENST00000523392.2 linkc.758G>T p.Gly253Val missense_variant Exon 2 of 2 3 NM_001323311.2 ENSP00000466881.2 Q9UJV8-1K7ENC1
PURGENST00000339382.3 linkc.758G>T p.Gly253Val missense_variant Exon 1 of 2 1 ENSP00000345168.2 Q9UJV8-2
PURGENST00000475541.2 linkc.758G>T p.Gly253Val missense_variant Exon 1 of 1 6 ENSP00000418721.1 Q9UJV8-1

Frequencies

GnomAD3 genomes
AF:
0.00000657
AC:
1
AN:
152198
Hom.:
0
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.00
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.00
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:
0.000478
GnomAD2 exomes
AF:
0.000111
AC:
28
AN:
251472
AF XY:
0.0000957
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.000810
Gnomad ASJ exome
AF:
0.00
Gnomad EAS 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:
0.0000198
AC:
29
AN:
1461888
Hom.:
0
Cov.:
31
AF XY:
0.0000179
AC XY:
13
AN XY:
727244
show subpopulations
African (AFR)
AF:
0.00
AC:
0
AN:
33480
American (AMR)
AF:
0.000604
AC:
27
AN:
44724
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
26136
East Asian (EAS)
AF:
0.00
AC:
0
AN:
39700
South Asian (SAS)
AF:
0.00
AC:
0
AN:
86258
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
53416
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
5768
European-Non Finnish (NFE)
AF:
8.99e-7
AC:
1
AN:
1112012
Other (OTH)
AF:
0.0000166
AC:
1
AN:
60394
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.473
Heterozygous variant carriers
0
3
6
8
11
14
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Exome 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
GnomAD4 genome
AF:
0.00000657
AC:
1
AN:
152198
Hom.:
0
Cov.:
32
AF XY:
0.00
AC XY:
0
AN XY:
74352
show subpopulations
African (AFR)
AF:
0.00
AC:
0
AN:
41456
American (AMR)
AF:
0.00
AC:
0
AN:
15290
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
3470
East Asian (EAS)
AF:
0.00
AC:
0
AN:
5190
South Asian (SAS)
AF:
0.00
AC:
0
AN:
4826
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
10618
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
316
European-Non Finnish (NFE)
AF:
0.00
AC:
0
AN:
68028
Other (OTH)
AF:
0.000478
AC:
1
AN:
2092
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.575
Heterozygous variant carriers
0
0
1
1
2
2
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance
Alfa
AF:
0.0000341
Hom.:
0
Bravo
AF:
0.0000869
ExAC
AF:
0.000123
AC:
15

ClinVar

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

Submissions by phenotype

not specified Uncertain:1
Sep 12, 2023
Ambry Genetics
Significance:Uncertain significance
Review Status:criteria provided, single submitter
Collection Method:clinical testing

The c.758G>T (p.G253V) alteration is located in exon 1 (coding exon 1) of the PURG gene. This alteration results from a G to T substitution at nucleotide position 758, causing the glycine (G) at amino acid position 253 to be replaced by a valine (V). 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
0.088
BayesDel_addAF
Benign
-0.52
T
BayesDel_noAF
Benign
-0.60
CADD
Benign
18
DANN
Benign
0.97
DEOGEN2
Benign
0.26
.;T
Eigen
Benign
-0.35
Eigen_PC
Benign
-0.24
FATHMM_MKL
Uncertain
0.78
D
LIST_S2
Benign
0.75
T;T
M_CAP
Benign
0.0069
T
MetaRNN
Benign
0.026
T;T
MetaSVM
Benign
-1.1
T
MutationAssessor
Benign
1.4
L;L
PhyloP100
2.2
PrimateAI
Benign
0.35
T
PROVEAN
Benign
-2.2
N;N
REVEL
Benign
0.034
Sift
Benign
0.072
T;T
Sift4G
Benign
0.42
T;T
Polyphen
0.0060
B;B
Vest4
0.082
MutPred
0.64
Loss of helix (P = 0.1706);Loss of helix (P = 0.1706);
MVP
0.068
MPC
1.1
ClinPred
0.040
T
GERP RS
3.1
Varity_R
0.17
gMVP
0.47
Mutation Taster
=70/30
polymorphism

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

Other links and lift over

dbSNP: rs745662043; hg19: chr8-30889541; API