rs73749732

Variant summary

Our verdict is Benign. The variant received -13 ACMG points: 0P and 13B. BP4_StrongBP6BS1BS2

The NM_015599.3(PGM3):​c.521G>T​(p.Arg174Leu) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000497 in 1,613,866 control chromosomes in the GnomAD database, including 7 homozygotes. 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 Conflicting classifications of pathogenicity (no stars). Synonymous variant affecting the same amino acid position (i.e. R174R) has been classified as Likely benign.

Frequency

Genomes: 𝑓 0.0024 ( 2 hom., cov: 32)
Exomes 𝑓: 0.00030 ( 5 hom. )

Consequence

PGM3
NM_015599.3 missense

Scores

2
17

Clinical Significance

Conflicting classifications of pathogenicity criteria provided, conflicting classifications U:1B:3

Conservation

PhyloP100: 0.367

Publications

3 publications found
Variant links:
Genes affected
PGM3 (HGNC:8907): (phosphoglucomutase 3) This gene encodes a member of the phosphohexose mutase family. The encoded protein mediates both glycogen formation and utilization by catalyzing the interconversion of glucose-1-phosphate and glucose-6-phosphate. A non-synonymous single nucleotide polymorphism in this gene may play a role in resistance to diabetic nephropathy and neuropathy. Alternatively spliced transcript variants encoding multiple isoforms have been observed for this gene. [provided by RefSeq, Dec 2010]
PGM3 Gene-Disease associations (from GenCC):
  • immunodeficiency 23
    Inheritance: AR Classification: DEFINITIVE, STRONG, SUPPORTIVE Submitted by: Orphanet, Labcorp Genetics (formerly Invitae), PanelApp Australia, G2P

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Benign. The variant received -13 ACMG points.

BP4
Computational evidence support a benign effect (MetaRNN=0.009155512).
BP6
Variant 6-83182915-C-A is Benign according to our data. Variant chr6-83182915-C-A is described in ClinVar as Conflicting_classifications_of_pathogenicity. ClinVar VariationId is 475003.
BS1
Variant frequency is greater than expected in population afr. GnomAd4 allele frequency = 0.00242 (368/152286) while in subpopulation AFR AF = 0.00835 (347/41564). AF 95% confidence interval is 0.00762. There are 2 homozygotes in GnomAd4. There are 172 alleles in the male GnomAd4 subpopulation. Median coverage is 32. This position passed quality control check.
BS2
High Homozygotes in GnomAd4 at 2 AR gene

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
PGM3NM_015599.3 linkc.521G>T p.Arg174Leu missense_variant Exon 5 of 13 ENST00000513973.6 NP_056414.1 O95394-1

Ensembl

Gene Transcript HGVSc HGVSp Effect Exon rank TSL MANE Protein Appris UniProt
PGM3ENST00000513973.6 linkc.521G>T p.Arg174Leu missense_variant Exon 5 of 13 1 NM_015599.3 ENSP00000424874.1 O95394-1
PGM3ENST00000283977.9 linkc.278G>T p.Arg93Leu missense_variant Exon 4 of 12 5 ENSP00000283977.5 J3KN95

Frequencies

GnomAD3 genomes
AF:
0.00241
AC:
366
AN:
152168
Hom.:
2
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.00832
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.00105
Gnomad ASJ
AF:
0.00
Gnomad EAS
AF:
0.00
Gnomad SAS
AF:
0.000414
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.0000147
Gnomad OTH
AF:
0.000957
GnomAD2 exomes
AF:
0.000676
AC:
170
AN:
251426
AF XY:
0.000493
show subpopulations
Gnomad AFR exome
AF:
0.00861
Gnomad AMR exome
AF:
0.000694
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:
0.000651
GnomAD4 exome
AF:
0.000297
AC:
434
AN:
1461580
Hom.:
5
Cov.:
30
AF XY:
0.000242
AC XY:
176
AN XY:
727118
show subpopulations
African (AFR)
AF:
0.0102
AC:
341
AN:
33478
American (AMR)
AF:
0.000827
AC:
37
AN:
44722
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
26132
East Asian (EAS)
AF:
0.0000756
AC:
3
AN:
39688
South Asian (SAS)
AF:
0.0000464
AC:
4
AN:
86246
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
53416
Middle Eastern (MID)
AF:
0.000520
AC:
3
AN:
5768
European-Non Finnish (NFE)
AF:
8.99e-7
AC:
1
AN:
1111742
Other (OTH)
AF:
0.000745
AC:
45
AN:
60388
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.464
Heterozygous variant carriers
0
19
39
58
78
97
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Exome Het
Exome Hom
Variant carriers
0
20
40
60
80
100
<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:
0.00242
AC:
368
AN:
152286
Hom.:
2
Cov.:
32
AF XY:
0.00231
AC XY:
172
AN XY:
74456
show subpopulations
African (AFR)
AF:
0.00835
AC:
347
AN:
41564
American (AMR)
AF:
0.00105
AC:
16
AN:
15302
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
3470
East Asian (EAS)
AF:
0.00
AC:
0
AN:
5186
South Asian (SAS)
AF:
0.000414
AC:
2
AN:
4828
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
10596
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
294
European-Non Finnish (NFE)
AF:
0.0000147
AC:
1
AN:
68022
Other (OTH)
AF:
0.000947
AC:
2
AN:
2112
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.486
Heterozygous variant carriers
0
17
34
50
67
84
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Genome Het
Genome Hom
Variant carriers
0
10
20
30
40
50
<30
30-35
35-40
40-45
45-50
50-55
55-60
60-65
65-70
70-75
75-80
>80
Age
Alfa
AF:
0.000723
Hom.:
1
Bravo
AF:
0.00314
ESP6500AA
AF:
0.00953
AC:
42
ESP6500EA
AF:
0.00
AC:
0
ExAC
AF:
0.000832
AC:
101
Asia WGS
AF:
0.00115
AC:
4
AN:
3478
EpiCase
AF:
0.000109
EpiControl
AF:
0.00

ClinVar

Significance: Conflicting classifications of pathogenicity
Submissions summary: Uncertain:1Benign:3
Revision: criteria provided, conflicting classifications
LINK: link

Submissions by phenotype

Immunodeficiency 23 Uncertain:1Benign:1
Jan 24, 2025
Labcorp Genetics (formerly Invitae), Labcorp
Significance:Benign
Review Status:criteria provided, single submitter
Collection Method:clinical testing

- -

Mar 30, 2021
Center for Genomics, Ann and Robert H. Lurie Children's Hospital of Chicago
Significance:Uncertain significance
Review Status:criteria provided, single submitter
Collection Method:clinical testing

PGM3 NM_001199917.1 exon 6 p.Arg202Leu (c.605G>T): This variant has not been reported in the literature but is present in 0.9% (220/24038) of African alleles, including 2 homozygotes, in the Genome Aggregation Database (http://gnomad.broadinstitute.org/rs73749732). This variant is present in ClinVar (Variation ID:475003). Evolutionary conservation and computational predictive tools suggest that this variant may not impact the protein. In summary, data on this variant is insufficient for disease classification. Therefore, the clinical significance of this variant is uncertain. -

not specified Benign:1
Nov 24, 2021
Genetic Services Laboratory, University of Chicago
Significance:Likely benign
Review Status:criteria provided, single submitter
Collection Method:clinical testing

- -

PGM3-related disorder Benign:1
Mar 21, 2024
PreventionGenetics, part of Exact Sciences
Significance:Likely benign
Review Status:no assertion criteria provided
Collection Method:clinical testing

This variant is classified as likely benign based on ACMG/AMP sequence variant interpretation guidelines (Richards et al. 2015 PMID: 25741868, with internal and published modifications). -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.077
BayesDel_addAF
Benign
-0.47
T
BayesDel_noAF
Benign
-0.44
CADD
Benign
1.3
DANN
Benign
0.96
DEOGEN2
Uncertain
0.45
T;T;.;.;.;T
Eigen
Benign
-1.0
Eigen_PC
Benign
-1.1
FATHMM_MKL
Benign
0.16
N
LIST_S2
Uncertain
0.94
D;D;D;D;D;D
M_CAP
Benign
0.021
T
MetaRNN
Benign
0.0092
T;T;T;T;T;T
MetaSVM
Benign
-0.97
T
MutationAssessor
Benign
0.90
L;.;L;.;.;.
PhyloP100
0.37
PrimateAI
Benign
0.21
T
PROVEAN
Benign
-1.3
N;.;N;N;N;N
REVEL
Benign
0.079
Sift
Benign
0.21
T;.;T;T;T;T
Sift4G
Benign
0.28
T;T;T;T;T;.
Polyphen
0.053
B;.;.;.;.;.
Vest4
0.50
MVP
0.41
MPC
0.32
ClinPred
0.012
T
GERP RS
-1.4
RBP_binding_hub_radar
0.0
RBP_regulation_power_radar
1.7
Varity_R
0.034
gMVP
0.26
Mutation Taster
=98/2
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: rs73749732; hg19: chr6-83892634; API