2-158117920-G-A

Variant summary

Our verdict is Likely pathogenic. Variant got 6 ACMG points: 6P and 0B. PM2PP3_Strong

The NM_173355.4(UPP2):​c.436G>A​(p.Gly146Ser) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.0000168 in 1,610,614 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a pathogenic outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.000013 ( 0 hom., cov: 32)
Exomes 𝑓: 0.000017 ( 0 hom. )

Consequence

UPP2
NM_173355.4 missense

Scores

11
7
1

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 7.94
Variant links:
Genes affected
UPP2 (HGNC:23061): (uridine phosphorylase 2) Enables deoxyuridine phosphorylase activity; identical protein binding activity; and uridine phosphorylase activity. Involved in dCMP catabolic process and uridine catabolic process. Located in type III intermediate filament. [provided by Alliance of Genome Resources, Apr 2022]

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Likely_pathogenic. Variant got 6 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
PP3
MetaRNN computational evidence supports a deleterious effect, 0.98

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
UPP2NM_173355.4 linkuse as main transcriptc.436G>A p.Gly146Ser missense_variant 4/7 ENST00000005756.5 NP_775491.1
UPP2NM_001135098.2 linkuse as main transcriptc.607G>A p.Gly203Ser missense_variant 6/9 NP_001128570.1
UPP2XM_017003484.2 linkuse as main transcriptc.436G>A p.Gly146Ser missense_variant 4/6 XP_016858973.1

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
UPP2ENST00000005756.5 linkuse as main transcriptc.436G>A p.Gly146Ser missense_variant 4/71 NM_173355.4 ENSP00000005756 P1O95045-1
UPP2ENST00000605860.5 linkuse as main transcriptc.607G>A p.Gly203Ser missense_variant 7/105 ENSP00000474090 O95045-2
UPP2ENST00000460456.1 linkuse as main transcriptn.377-5829G>A intron_variant, non_coding_transcript_variant 5

Frequencies

GnomAD3 genomes
AF:
0.0000132
AC:
2
AN:
151804
Hom.:
0
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.0000242
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.00
Gnomad ASJ
AF:
0.00
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
GnomAD3 exomes
AF:
0.00000798
AC:
2
AN:
250700
Hom.:
0
AF XY:
0.00000738
AC XY:
1
AN XY:
135460
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.00
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.0000544
Gnomad SAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.00000884
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.0000171
AC:
25
AN:
1458810
Hom.:
0
Cov.:
30
AF XY:
0.0000179
AC XY:
13
AN XY:
725868
show subpopulations
Gnomad4 AFR exome
AF:
0.00
Gnomad4 AMR exome
AF:
0.00
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.0000504
Gnomad4 SAS exome
AF:
0.0000116
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.0000162
Gnomad4 OTH exome
AF:
0.0000663
GnomAD4 genome
AF:
0.0000132
AC:
2
AN:
151804
Hom.:
0
Cov.:
32
AF XY:
0.0000135
AC XY:
1
AN XY:
74138
show subpopulations
Gnomad4 AFR
AF:
0.0000242
Gnomad4 AMR
AF:
0.00
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.00
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.0000147
Gnomad4 OTH
AF:
0.00
Alfa
AF:
0.0000434
Hom.:
0
Bravo
AF:
0.0000113
ExAC
AF:
0.0000165
AC:
2

ClinVar

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

Submissions by phenotype

not specified Uncertain:1
Uncertain significance, criteria provided, single submitterclinical testingAmbry GeneticsMar 31, 2023The c.607G>A (p.G203S) alteration is located in exon 6 (coding exon 6) of the UPP2 gene. This alteration results from a G to A substitution at nucleotide position 607, causing the glycine (G) at amino acid position 203 to be replaced by a serine (S). 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
Pathogenic
0.95
BayesDel_addAF
Pathogenic
0.32
D
BayesDel_noAF
Pathogenic
0.39
CADD
Uncertain
25
DANN
Uncertain
1.0
DEOGEN2
Pathogenic
0.80
.;D
Eigen
Uncertain
0.60
Eigen_PC
Uncertain
0.43
FATHMM_MKL
Pathogenic
0.99
D
LIST_S2
Pathogenic
1.0
D;D
M_CAP
Uncertain
0.10
D
MetaRNN
Pathogenic
0.98
D;D
MetaSVM
Pathogenic
0.88
D
MutationAssessor
Pathogenic
3.1
.;M
MutationTaster
Benign
1.0
D;D
PrimateAI
Uncertain
0.59
T
PROVEAN
Pathogenic
-5.5
.;D
REVEL
Pathogenic
0.78
Sift
Uncertain
0.0020
.;D
Sift4G
Uncertain
0.0080
D;D
Polyphen
1.0
.;D
Vest4
0.87
MutPred
0.87
.;Gain of glycosylation at G146 (P = 0.0255);
MVP
0.97
MPC
0.69
ClinPred
0.99
D
GERP RS
4.8
Varity_R
0.81
gMVP
0.93

Splicing

Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
0.070
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: rs757337316; hg19: chr2-158974432; COSMIC: COSV50047945; API