2-63857857-G-A

Variant summary

Our verdict is Uncertain significance. Variant got 0 ACMG points: 2P and 2B. PM2BP4_Moderate

The NM_006759.4(UGP2):​c.176G>A​(p.Arg59Gln) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000041 in 1,461,742 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 13/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: not found (cov: 32)
Exomes 𝑓: 0.0000041 ( 0 hom. )

Consequence

UGP2
NM_006759.4 missense

Scores

3
16

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 3.54
Variant links:
Genes affected
UGP2 (HGNC:12527): (UDP-glucose pyrophosphorylase 2) The enzyme encoded by this gene is an important intermediary in mammalian carbohydrate interconversions. It transfers a glucose moiety from glucose-1-phosphate to MgUTP and forms UDP-glucose and MgPPi. In liver and muscle tissue, UDP-glucose is a direct precursor of glycogen; in lactating mammary gland it is converted to UDP-galactose which is then converted to lactose. The eukaryotic enzyme has no significant sequence similarity to the prokaryotic enzyme. Two transcript variants encoding different isoforms have been found for this gene. [provided by RefSeq, Jul 2008]

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 0 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
BP4
Computational evidence support a benign effect (MetaRNN=0.16516927).

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
UGP2NM_006759.4 linkuse as main transcriptc.176G>A p.Arg59Gln missense_variant 3/10 ENST00000337130.10 NP_006750.3 Q16851-1

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
UGP2ENST00000337130.10 linkuse as main transcriptc.176G>A p.Arg59Gln missense_variant 3/101 NM_006759.4 ENSP00000338703.5 Q16851-1

Frequencies

GnomAD3 genomes
Cov.:
32
GnomAD3 exomes
AF:
0.00000796
AC:
2
AN:
251314
Hom.:
0
AF XY:
0.00000736
AC XY:
1
AN XY:
135868
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.00
Gnomad ASJ exome
AF:
0.0000992
Gnomad EAS exome
AF:
0.00
Gnomad SAS exome
AF:
0.0000327
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.00
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.00000410
AC:
6
AN:
1461742
Hom.:
0
Cov.:
31
AF XY:
0.00000275
AC XY:
2
AN XY:
727176
show subpopulations
Gnomad4 AFR exome
AF:
0.00
Gnomad4 AMR exome
AF:
0.00
Gnomad4 ASJ exome
AF:
0.0000383
Gnomad4 EAS exome
AF:
0.00
Gnomad4 SAS exome
AF:
0.0000348
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.00000180
Gnomad4 OTH exome
AF:
0.00
GnomAD4 genome
Cov.:
32
Alfa
AF:
0.0000508
Hom.:
0
Bravo
AF:
0.00000378
ExAC
AF:
0.00000824
AC:
1

ClinVar

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

Submissions by phenotype

Inborn genetic diseases Uncertain:1
Uncertain significance, criteria provided, single submitterclinical testingAmbry GeneticsApr 20, 2024The c.176G>A (p.R59Q) alteration is located in exon 3 (coding exon 3) of the UGP2 gene. This alteration results from a G to A substitution at nucleotide position 176, causing the arginine (R) at amino acid position 59 to be replaced by a glutamine (Q). 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
0.063
BayesDel_addAF
Benign
-0.33
T
BayesDel_noAF
Benign
-0.53
CADD
Uncertain
24
DANN
Uncertain
0.99
DEOGEN2
Benign
0.0026
.;T;.;T;T;.;T;.;T;T;T;.
Eigen
Benign
-0.11
Eigen_PC
Benign
0.10
FATHMM_MKL
Uncertain
0.80
D
LIST_S2
Uncertain
0.89
.;D;D;D;D;D;D;D;D;D;D;D
M_CAP
Benign
0.0027
T
MetaRNN
Benign
0.17
T;T;T;T;T;T;T;T;T;T;T;T
MetaSVM
Benign
-1.0
T
MutationAssessor
Benign
0.34
.;.;.;N;.;.;.;.;.;.;.;.
PrimateAI
Benign
0.39
T
PROVEAN
Benign
-0.090
N;N;N;N;.;N;N;N;N;N;N;.
REVEL
Benign
0.072
Sift
Benign
0.21
T;T;T;T;.;T;T;T;T;T;T;.
Sift4G
Benign
0.37
T;T;T;T;.;T;T;T;T;T;T;T
Polyphen
0.0, 0.0020
.;.;.;B;.;.;.;B;.;.;.;.
Vest4
0.32
MutPred
0.52
.;.;.;.;.;.;.;Loss of MoRF binding (P = 0.0345);.;.;.;.;
MVP
0.26
MPC
0.58
ClinPred
0.22
T
GERP RS
4.1
RBP_binding_hub_radar
0.0
RBP_regulation_power_radar
1.1
Varity_R
0.071
gMVP
0.30

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: rs762876553; hg19: chr2-64084991; COSMIC: COSV61427265; COSMIC: COSV61427265; API