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rs73749732

Variant summary

Our verdict is Benign. Variant got -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. 15/21 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:2

Conservation

PhyloP100: 0.367
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]

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ACMG classification

Classification made for transcript

Verdict is Benign. Variant got -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 id is 475003.We mark this variant Likely_benign, oryginal submissions are: {Uncertain_significance=1, Benign=1, Likely_benign=1}.
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 male gnomad4 subpopulation. Median coverage is 32. This position pass quality control queck.
BS2
High Homozygotes in GnomAd4 at 2 AR gene

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
PGM3NM_015599.3 linkuse as main transcriptc.521G>T p.Arg174Leu missense_variant 5/13 ENST00000513973.6

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
PGM3ENST00000513973.6 linkuse as main transcriptc.521G>T p.Arg174Leu missense_variant 5/131 NM_015599.3 P1O95394-1

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
GnomAD3 exomes
AF:
0.000676
AC:
170
AN:
251426
Hom.:
1
AF XY:
0.000493
AC XY:
67
AN XY:
135892
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 SAS exome
AF:
0.0000653
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
Gnomad4 AFR exome
AF:
0.0102
Gnomad4 AMR exome
AF:
0.000827
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.0000756
Gnomad4 SAS exome
AF:
0.0000464
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
8.99e-7
Gnomad4 OTH exome
AF:
0.000745
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
Gnomad4 AFR
AF:
0.00835
Gnomad4 AMR
AF:
0.00105
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.000414
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.0000147
Gnomad4 OTH
AF:
0.000947
Alfa
AF:
0.000133
Hom.:
0
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:2
Revision: criteria provided, conflicting classifications
LINK: link

Submissions by phenotype

Immunodeficiency 23 Uncertain:1Benign:1
Uncertain significance, criteria provided, single submitterclinical testingCenter for Genomics, Ann and Robert H. Lurie Children's Hospital of ChicagoMar 30, 2021PGM3 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. -
Benign, criteria provided, single submitterclinical testingInvitaeJan 31, 2024- -
not specified Benign:1
Likely benign, criteria provided, single submitterclinical testingGenetic Services Laboratory, University of ChicagoNov 24, 2021- -

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;.;.;.
MutationTaster
Benign
1.0
N;N;N;N
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

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: rs73749732; hg19: chr6-83892634; API