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Tbio
USP5
Ubiquitin carboxyl-terminal hydrolase 5

Protein Summary
Description
Cleaves linear and branched multiubiquitin polymers with a marked preference for branched polymers. Involved in unanchored 'Lys-48'-linked polyubiquitin disassembly. Binds linear and 'Lys-63'-linked polyubiquitin with a lower affinity. Knock-down of USP5 causes the accumulation of p53/TP53 and an increase in p53/TP53 transcriptional activity because the unanchored polyubiquitin that accumulates is able to compete with ubiquitinated p53/TP53 but not with MDM2 for proteasomal recognition. Ubiquitin (see MIM 191339)-dependent proteolysis is a complex pathway of protein metabolism implicated in such diverse cellular functions as maintenance of chromatin structure, receptor function, and degradation of abnormal proteins. A late step of the process involves disassembly of the polyubiquitin chains on degraded proteins into ubiquitin monomers. USP5 disassembles branched polyubiquitin chains by a sequential exo mechanism, starting at the proximal end of the chain (Wilkinson et al., 1995 [PubMed ...more
Uniprot Accession IDs
Gene Name
Ensembl ID
  • ENST00000229268
  • ENSP00000229268
  • ENSG00000111667
  • ENST00000389231
  • ENSP00000373883

Symbol
  • ISOT
  • ISOT
Illumination Graph
Knowledge Table
Most Knowledge About
Knowledge Value (0 to 1 scale)
protein domain
0.99
disease perturbation
0.98
transcription factor binding site profile
0.91
histone modification site profile
0.84
small molecule perturbation
0.82


IDG Development Level Summary
Tdark

These are targets about which virtually nothing is known. They do not have known drug or small molecule activities
- AND - satisfy two or more of the following criteria:

Pubmed score: 92.74   (req: < 5)
Gene RIFs: 33   (req: <= 3)
Antibodies: 325   (req: <= 50)
Tbio

These targets do not have known drug or small molecule activities
- AND - satisfy two or more of the following criteria:

Pubmed score: 92.74   (req: >= 5)
Gene RIFs: 33   (req: > 3)
Antibodies: 325   (req: > 50)

- OR - satisfy the following criterion:

Gene Ontology Terms: 9
Tchem

Target has at least one ChEMBL compound with an activity cutoff of < 30 nM - AND - satisfies the preceding conditions

Active Ligand: 1
Tclin

Target has at least one approved drug - AND - satisfies the preceding conditions

Active Drug: 0