Genetic Variant UPK2:p.Arg8Trp (chr11-118956372-C-T) – ACMG Classification: Likely_benign (-2 pts)

Variant summary

Our verdict is Likely benign. Variant got -2 ACMG points: 2P and 4B. PM2BP4_Strong

The NM_006760.4(UPK2):c.22C>T(p.Arg8Trp) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000594 in 1,611,452 control chromosomes in the GnomAD database, with no homozygous occurrence. 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 Uncertain significance (★).

Frequency

Genomes: 𝑓 0.00028 ( 0 hom., cov: 32)

Exomes 𝑓: 0.00063 ( 0 hom. )

Consequence

UPK2
NM_006760.4 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: -0.824

Variant links:

Genes affected

UPK2 (HGNC:12579): (uroplakin 2) This gene encodes one of the proteins of the highly conserved urothelium-specific integral membrane proteins of the asymmetric unit membrane which forms urothelium apical plaques in mammals. The asymmetric unit membrane is believed to strengthen the urothelium by preventing cell rupture during bladder distention. The encoded protein is expressed in the peripheral blood of bladder cancer patients with transitional cell carcinomas.[provided by RefSeq, Sep 2009]

UPK2 links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Likely_benign. Variant got -2 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

BP4

Computational evidence support a benign effect (MetaRNN=0.03493148).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
UPK2	NM_006760.4 link	c.22C>T	p.Arg8Trp	missense_variant	Exon 1 of 5	ENST00000264031.3	NP_006751.1	O00526

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
UPK2	ENST00000264031.3 link	c.22C>T	p.Arg8Trp	missense_variant	Exon 1 of 5	1	NM_006760.4	ENSP00000264031.2		O00526
UPK2	ENST00000534788.1 link	n.191-511C>T		intron_variant	Intron 2 of 5	3

Frequencies

GnomAD3 genomes

AF:

0.000276

AC:

AN:

152166

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.000121

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.0000655

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:

0.000515

Gnomad OTH

AF:

0.000478

GnomAD3 exomes

AF:

0.000261

AC:

AN:

249348

Hom.:

AF XY:

0.000237

AC XY:

AN XY:

134954

show subpopulations

Gnomad AFR exome

AF:

0.000123

Gnomad AMR exome

AF:

0.0000289

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00

Gnomad SAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.000546

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.000627

AC:

915

AN:

1459286

Hom.:

Cov.:

AF XY:

0.000596

AC XY:

433

AN XY:

726092

show subpopulations

Gnomad4 AFR exome

AF:

0.00

Gnomad4 AMR exome

AF:

0.0000447

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.0000252

Gnomad4 SAS exome

AF:

0.00

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.000774

Gnomad4 OTH exome

AF:

0.000845

GnomAD4 genome

AF:

0.000276

AC:

AN:

152166

Hom.:

Cov.:

AF XY:

0.000148

AC XY:

AN XY:

74342

show subpopulations

Gnomad4 AFR

AF:

0.000121

Gnomad4 AMR

AF:

0.0000655

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.00

Gnomad4 SAS

AF:

0.00

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.000515

Gnomad4 OTH

AF:

0.000478

Alfa

AF:

0.000456

Hom.:

Bravo

AF:

0.000268

TwinsUK

AF:

0.000270

AC:

ALSPAC

AF:

0.00156

AC:

ESP6500AA

AF:

0.000682

AC:

ESP6500EA

AF:

0.000582

AC:

ExAC

AF:

0.000272

AC:

EpiCase

AF:

0.000600

EpiControl

AF:

0.000474

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

not specified

Uncertain:1

Dec 22, 2023

Ambry Genetics

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: clinical testing

The c.22C>T (p.R8W) alteration is located in exon 1 (coding exon 1) of the UPK2 gene. This alteration results from a C to T substitution at nucleotide position 22, causing the arginine (R) at amino acid position 8 to be replaced by a tryptophan (W). 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

0.086

BayesDel_addAF

Benign

-0.60

BayesDel_noAF

Benign

-0.65

CADD

Benign

DANN

Benign

0.86

DEOGEN2

Benign

0.092

Eigen

Benign

-1.1

Eigen_PC

Benign

-1.2

FATHMM_MKL

Benign

0.038

LIST_S2

Benign

0.48

M_CAP

Benign

0.0086

MetaRNN

Benign

0.035

MetaSVM

Benign

-1.0

MutationAssessor

Benign

0.20

PrimateAI

Benign

0.21

PROVEAN

Benign

-0.76

REVEL

Benign

0.049

Sift

Benign

0.14

Sift4G

Benign

0.13

Polyphen

0.0

Vest4

0.16

MVP

0.26

MPC

0.12

ClinPred

0.044

GERP RS

-2.4

Varity_R

0.048

gMVP

0.50

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.

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

LitVar

Other links and lift over