rs140545494

Variant summary

Our verdict is Uncertain significance. The variant received 1 ACMG points: 2P and 1B. PM2BP4

The NM_000290.4(PGAM2):​c.119G>T​(p.Arg40Leu) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000000684 in 1,461,802 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 15/22 in silico tools predict a benign outcome for this variant. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar. Another variant affecting the same amino acid position, but resulting in a different missense (i.e. R40Q) has been classified as Likely benign.

Frequency

Genomes: not found (cov: 33)
Exomes 𝑓: 6.8e-7 ( 0 hom. )

Consequence

PGAM2
NM_000290.4 missense

Scores

5
13

Clinical Significance

Not reported in ClinVar

Conservation

PhyloP100: 1.09

Publications

4 publications found
Variant links:
Genes affected
PGAM2 (HGNC:8889): (phosphoglycerate mutase 2) Phosphoglycerate mutase (PGAM) catalyzes the reversible reaction of 3-phosphoglycerate (3-PGA) to 2-phosphoglycerate (2-PGA) in the glycolytic pathway. The PGAM is a dimeric enzyme containing, in different tissues, different proportions of a slow-migrating muscle (MM) isozyme, a fast-migrating brain (BB) isozyme, and a hybrid form (MB). This gene encodes muscle-specific PGAM subunit. Mutations in this gene cause muscle phosphoglycerate mutase eficiency, also known as glycogen storage disease X. [provided by RefSeq, Sep 2009]
DBNL (HGNC:2696): (drebrin like) Enables cadherin binding activity. Predicted to be involved in several processes, including Rac protein signal transduction; nervous system development; and podosome assembly. Located in cytoplasm. [provided by Alliance of Genome Resources, Apr 2022]

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ACMG classification

Classification was made for transcript

Our verdict: Uncertain_significance. The variant received 1 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
BP4
Computational evidence support a benign effect (MetaRNN=0.42353582).

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_000290.4. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Selected
GeneTranscriptTagsHGVScHGVSpEffectExon RankProteinUniProt
PGAM2
NM_000290.4
MANE Select
c.119G>Tp.Arg40Leu
missense
Exon 1 of 3NP_000281.2
DBNL
NM_001014436.3
MANE Select
c.*4495C>A
3_prime_UTR
Exon 13 of 13NP_001014436.1
DBNL
NM_001122956.2
c.*4495C>A
3_prime_UTR
Exon 13 of 13NP_001116428.1

Ensembl Transcripts

Selected
GeneTranscriptTagsHGVScHGVSpEffectExon RankProteinUniProt
PGAM2
ENST00000297283.4
TSL:1 MANE Select
c.119G>Tp.Arg40Leu
missense
Exon 1 of 3ENSP00000297283.3
DBNL
ENST00000448521.6
TSL:1 MANE Select
c.*4495C>A
3_prime_UTR
Exon 13 of 13ENSP00000411701.1
PGAM2
ENST00000971360.1
c.119G>Tp.Arg40Leu
missense
Exon 1 of 3ENSP00000641419.1

Frequencies

GnomAD3 genomes
Cov.:
33
GnomAD2 exomes
AF:
0.00000398
AC:
1
AN:
251408
AF XY:
0.00
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.0000289
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:
6.84e-7
AC:
1
AN:
1461802
Hom.:
0
Cov.:
34
AF XY:
0.00
AC XY:
0
AN XY:
727220
show subpopulations
African (AFR)
AF:
0.00
AC:
0
AN:
33480
American (AMR)
AF:
0.0000224
AC:
1
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:
53336
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
5768
European-Non Finnish (NFE)
AF:
0.00
AC:
0
AN:
1112008
Other (OTH)
AF:
0.00
AC:
0
AN:
60392
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.525
Heterozygous variant carriers
0
0
1
1
2
2
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
Cov.:
33

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.9

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.19
BayesDel_addAF
Benign
-0.059
T
BayesDel_noAF
Benign
-0.24
CADD
Benign
22
DANN
Uncertain
1.0
DEOGEN2
Uncertain
0.59
D
Eigen
Benign
-0.20
Eigen_PC
Benign
-0.16
FATHMM_MKL
Uncertain
0.81
D
LIST_S2
Uncertain
0.96
D
M_CAP
Benign
0.024
T
MetaRNN
Benign
0.42
T
MetaSVM
Benign
-0.72
T
MutationAssessor
Benign
0.90
L
PhyloP100
1.1
PrimateAI
Benign
0.33
T
PROVEAN
Uncertain
-2.9
D
REVEL
Benign
0.25
Sift
Benign
0.076
T
Sift4G
Benign
0.15
T
Polyphen
0.41
B
Vest4
0.60
MutPred
0.42
Loss of methylation at R40 (P = 0.0143)
MVP
0.87
MPC
0.17
ClinPred
0.77
D
GERP RS
3.1
PromoterAI
0.025
Neutral
Varity_R
0.21
gMVP
0.74
Mutation Taster
=71/29
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: rs140545494; hg19: chr7-44105010; API