rs73749738

Variant summary

Our verdict is Likely benign. The variant received -2 ACMG points: 2P and 4B. PM2BP4_Strong

The NM_015599.3(PGM3):​c.-2-190T>C variant causes a intron change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000978 in 1,534,522 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.000020 ( 0 hom., cov: 32)
Exomes 𝑓: 0.0000087 ( 0 hom. )

Consequence

PGM3
NM_015599.3 intron

Scores

1
1
15

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: -0.0380

Publications

6 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: Likely_benign. The variant received -2 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
BP4
Computational evidence support a benign effect (MetaRNN=0.04755017).

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
PGM3NM_015599.3 linkc.-2-190T>C intron_variant Intron 1 of 12 ENST00000513973.6 NP_056414.1 O95394-1

Ensembl

Gene Transcript HGVSc HGVSp Effect Exon rank TSL MANE Protein Appris UniProt
PGM3ENST00000513973.6 linkc.-2-190T>C intron_variant Intron 1 of 12 1 NM_015599.3 ENSP00000424874.1 O95394-1
PGM3ENST00000283977.9 linkc.-40+1975T>C intron_variant Intron 1 of 11 5 ENSP00000283977.5 J3KN95

Frequencies

GnomAD3 genomes
AF:
0.0000197
AC:
3
AN:
152014
Hom.:
0
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.00
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.00
Gnomad ASJ
AF:
0.000576
Gnomad EAS
AF:
0.00
Gnomad SAS
AF:
0.00
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.0000147
Gnomad OTH
AF:
0.00
GnomAD2 exomes
AF:
0.0000153
AC:
2
AN:
130380
AF XY:
0.0000141
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.00
Gnomad ASJ exome
AF:
0.000123
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:
0.00000868
AC:
12
AN:
1382508
Hom.:
0
Cov.:
30
AF XY:
0.00000586
AC XY:
4
AN XY:
682240
show subpopulations
African (AFR)
AF:
0.00
AC:
0
AN:
31560
American (AMR)
AF:
0.00
AC:
0
AN:
35704
Ashkenazi Jewish (ASJ)
AF:
0.000199
AC:
5
AN:
25178
East Asian (EAS)
AF:
0.00
AC:
0
AN:
35724
South Asian (SAS)
AF:
0.0000252
AC:
2
AN:
79216
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
33522
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
5696
European-Non Finnish (NFE)
AF:
0.00000186
AC:
2
AN:
1078042
Other (OTH)
AF:
0.0000518
AC:
3
AN:
57866
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.471
Heterozygous variant carriers
0
1
2
3
4
5
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:
0.0000197
AC:
3
AN:
152014
Hom.:
0
Cov.:
32
AF XY:
0.0000135
AC XY:
1
AN XY:
74234
show subpopulations
African (AFR)
AF:
0.00
AC:
0
AN:
41354
American (AMR)
AF:
0.00
AC:
0
AN:
15266
Ashkenazi Jewish (ASJ)
AF:
0.000576
AC:
2
AN:
3472
East Asian (EAS)
AF:
0.00
AC:
0
AN:
5164
South Asian (SAS)
AF:
0.00
AC:
0
AN:
4826
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
10596
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
316
European-Non Finnish (NFE)
AF:
0.0000147
AC:
1
AN:
68016
Other (OTH)
AF:
0.00
AC:
0
AN:
2092
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.558
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:
0.00
Hom.:
17

ClinVar

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

Submissions by phenotype

Immunodeficiency 23 Uncertain:1
Sep 01, 2021
Labcorp Genetics (formerly Invitae), Labcorp
Significance:Uncertain significance
Review Status:criteria provided, single submitter
Collection Method:clinical testing

This sequence change replaces valine with alanine at codon 22 of the PGM3 protein (p.Val22Ala). The valine residue is weakly conserved and there is a small physicochemical difference between valine and alanine. The frequency data for this variant in the population databases is considered unreliable, as metrics indicate insufficient coverage at this position in the ExAC database. This variant has not been reported in the literature in individuals affected with PGM3-related conditions. Algorithms developed to predict the effect of missense changes on protein structure and function are either unavailable or do not agree on the potential impact of this missense change (SIFT: "Deleterious"; PolyPhen-2: "Benign"; Align-GVGD: "Class C0"). In summary, the available evidence is currently insufficient to determine the role of this variant in disease. Therefore, it has been classified as a Variant of Uncertain Significance. -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.062
BayesDel_addAF
Benign
-0.36
T
BayesDel_noAF
Benign
-0.62
CADD
Benign
1.9
DANN
Benign
0.62
Eigen
Benign
-1.4
Eigen_PC
Benign
-1.5
FATHMM_MKL
Benign
0.15
N
LIST_S2
Benign
0.29
T;T;T
M_CAP
Benign
0.0031
T
MetaRNN
Benign
0.048
T;T;T
MetaSVM
Benign
-0.98
T
PhyloP100
-0.038
PrimateAI
Benign
0.35
T
PROVEAN
Benign
-0.020
N;N;N
REVEL
Benign
0.027
Sift
Pathogenic
0.0
D;D;D
Sift4G
Uncertain
0.055
T;.;D
Vest4
0.18
MutPred
0.44
Loss of stability (P = 0.0472);Loss of stability (P = 0.0472);Loss of stability (P = 0.0472);
MVP
0.030
MPC
0.23
ClinPred
0.030
T
GERP RS
-0.79
gMVP
0.50
Mutation Taster
=100/0
polymorphism

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

Other links and lift over

dbSNP: rs73749738; hg19: chr6-83900923; API