Molecular Target Synopsis
Overview
Domains and Structures
Drugs and Clinical Candidates
Druggability
Chemistry
Ligand Efficiency Plot
Pathways
Family Cladogram
Interaction Network
Gene Expression
Gene Copy Number Variation
RNAi
Mutations
Germline Genetics

PUP1 (P25043) - Overview - Molecular Target Synopsis

Protein


PUP1, Proteasome subunit beta type-2
Enzyme Classification 3.4.25.1
UniProt P25043

Also Known as PSB2_YEAST, PUP1

The proteasome degrades poly-ubiquitinated proteins in the cytoplasm and in the nucleus. It is essential for the regulated turnover of proteins and for the removal of misfolded proteins. The proteasome is a multicatalytic proteinase complex that is characterized by its ability to cleave peptides with Arg, Phe, Tyr, Leu, and Glu adjacent to the leaving group at neutral or slightly basic pH. It has an ATP-dependent proteolytic activity. The 26S proteasome consists of a 20S proteasome core and two 19S regulatory subunits. The 20S proteasome core is composed of 28 subunits that are arranged in four stacked rings, resulting in a barrel-shaped structure. The two end rings are each formed by seven alpha subunits, and the two central rings are each formed by seven beta subunits. The catalytic chamber with the active sites is on the inside of the barrel.

6HV4
YEAST 20S PROTEASOME WITH HUMAN BETA2I (1-53) IN COMPLEX WITH ONX 0914
RCSB/PDB
Inspect Structure
See all 3D Structures for PUP1

Isoforms / Transcripts (Protein Coding)


Protein Length Ensembl Gene Ensembl Transcript Ensembl Protein Uniprot Isoform
261P25043-1

Sub-cellular localization


UniProt: PUP1 is active in the following subcellular-locations: cytoplasm, nucleus.
GO terms: PUP1 is active in the following subcellular-locations: cytoplasm, cytosol, endoplasmic reticulum membrane, nucleus, proteasome core complex, proteasome core complex, proteasome storage granule.



UniProt
GO terms

Gene Copy Number Variation


In COSMIC - Cell Lines Project PUP1 has gain in 0 cell-lines, loss in 0 cell-lines and no signal in 0 cell-lines. (see details)

3D Structures


For PUP1 there are:
278 structures (550 chains) solved
149 are solved in complex with at least one small molecule ligand
21 are solved with an approved drug

PUP1 is solved in complex with the approved drug(s):

BO2/BORTEZOMIB (2F16_H, 2F16_V, 3MG0_H, 3MG0_V, 4QVL_H, 4QVL_V, 4QVM_H, 4QVM_V, 4QVN_H, 4QVN_V, 4QVP_H, 4QVP_V, 4QVQ_H, 4QVQ_V, 4QVV_H, 4QVV_V, 4QVW_H, 4QVW_V, 4QVY_H, 4QVY_V, 4QW0_H, 4QW0_V, 4QW1_H, 4QW1_V, 4QW3_H, 4QW3_V, 4QWU_H, 4QWU_V, 5BXN_H, 5BXN_V, 5CZ7_H, 5CZ7_V, 5D0X_H, 5D0X_V, 5L5F_H, 5L5F_V, 5L5Z_H, 5L5Z_V, 5L66_H, 5L66_V, 6HWD_H, 6HWD_V).

(see details)
Molecular Target 3D Synopsis

Screening and Chemistry


PUP1 has been screened with compounds ( bioactivities). (see details)