UPK1B

protein-coding

uroplakin 1B, the group of Tetraspanins

Gene summary

The protein encoded by this gene is a member of the transmembrane 4 superfamily, also known as the tetraspanin family. Most of these members are cell-surface proteins that are characterized by the presence of four hydrophobic domains. The proteins mediate signal transduction events that play a role in the regulation of cell development, activation, growth and motility. This encoded protein is found in the asymmetrical unit membrane (AUM) where it can form a complex with other transmembrane 4 superfamily proteins. It may play a role in normal bladder epithelial physiology, possibly in regulating membrane permeability of superficial umbrella cells or in stabilizing the apical membrane through AUM/cytoskeletal interactions. The use of alternate polyadenylation sites has been found for this gene. [provided by RefSeq, Jul 2008]

Previous symbols:
  • UPK1

MANE transcript

NM_006952.4

Inheritance

—

ClinVar variants

U:37B:2

Top phenotype

—

gnomAD constraint

pLI —, LoF o/e 0.85

Max pathogenic AF

—

Genomic locus

chr3:119,173,517-119,205,143

External References & Databases

Transcript & Mutation Effects

hg38 • Region Span ~31.6 kb
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GenCC Phenotypes & Disease Associations

Curated gene-disease validity assertions and inheritance patterns

No GenCC data available for this gene.

ClinVar Associated Diseases & Phenotypes

Reported disease conditions connected to UPK1B variants in ClinVar

1 Conditions Cataloged
not specifiedTotal: 36

ClinVar Variants & Pathogenicity by Type

Statistics based on transcript NM_006952.4. Only rare variants are included.

We include only reliable ClinVar variants with their consequences to MANE Select, MANE Plus Clinical transcripts, or transcripts with TSL equal to 1. Click a count to filter the variants table below.

Slight differences between displayed counts and ClinVar may occur due to a different transcript/consequence chosen by our variant effect predictor, or because we classify Benign/Likely benign as Likely benign and Pathogenic/Likely pathogenic as Likely pathogenic.

EffectPLPVUSLBBSum
synonymous
1
clinvar
1
missense
35
clinvar
2
clinvar
37
nonsense
1
clinvar
1
start loss
0
frameshift
0
splice donor/acceptor (+/-2bp)
0
Total00372039
Loading ClinVar variants...

Transcript Catalog

Annotated transcript isoforms across RefSeq and Ensembl databases

Showing 4 of 17 transcripts
Transcript IDSourceProtein IDCoding ExonsMANE Status
NM_006952.4RefSeqNP_008883.27MANE Select
ENST00000264234.8EnsemblENSP00000264234.37MANE Select
ENST00000460625.1EnsemblENSP00000418116.17Standard
ENST00000460625.2EnsemblENSP00000418116.17Standard

Gene Ontology (GO) Annotations & Pathways

Biological processes, molecular functions, cellular components and pathways

Biological Process

  • cell surface receptor signaling pathway
  • response to bacterium
  • epithelial cell differentiation

Molecular Function

  • structural molecule activity

Cellular Component

  • integral component of plasma membrane
  • integral component of membrane
  • extracellular exosome
  • apical plasma membrane urothelial plaque

gnomAD Constraint

Source: gnomAD

Gene type
protein_coding
Transcript type
protein_coding
Transcript
ENST00000264234
Coding exons
7
Length
31637
Individuals with no LoFs
125690
Homozygous LoFs
0
Heterozygous LoFs
58
Defined
125748
p
0.000231
Z-ScoreObservedExpectedObserved/ExpectedMutation RateTotal Possible
Missense0.0006741451451.000.000007481730
Missense (PolyPhen)5552.1541.0546645
Synonymous1.983452.20.6510.00000286476
Loss of Function0.5301315.20.8537.37e-7158

Population LoF Frequency

PopulationCAFp-valueStatus
African0.000180.00018rare
Latino/Admixed American0.000430.00043rare
Ashkenazi Jewish0.0000990.000099rare
East Asian0.000160.00016rare
Finnish0.0000460.000046rare
European (Non-Finnish)0.000240.00024rare
South Asian0.000130.00013rare
Other0.000650.00065rare

dbNSFP Gene Annotations

Source: dbNSFP

Function
FUNCTION: Component of the asymmetric unit membrane (AUM); a highly specialized biomembrane elaborated by terminally differentiated urothelial cells. May play an important role in normal bladder epithelial physiology, possibly in regulating membrane permeability of superficial umbrella cells or in stabilizing the apical membrane through AUM/cytoskeletal interactions (By similarity). {ECO:0000250}.;

Recessive Scores

pRec
0.120

Intolerance Scores

LoFtool
0.620
RVIS EVS
0.31
RVIS percentile EVS
72.23

Essentials

Essential (CRISPR)
N
Essential (CRISPR2)
N
Essential (gene trap)
N
Indispensability pred.
E
Indispensability score
0.711

Gene Damage Prediction

AllRecessiveDominant
MendelianMediumMediumMedium
Primary ImmunodeficiencyMediumMediumMedium
CancerMediumMediumMedium
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