4R18 image
Deposition Date 2014-08-04
Release Date 2014-10-15
Last Version Date 2023-12-06
Entry Detail
PDB ID:
4R18
Keywords:
HYDROLASE/HYDROLASE INHIBITOR
Title:
Ligand-induced Lys33-Thr1 crosslinking at subunit beta5 of the yeast 20S proteasome
Biological Source:
Source Organism:
Saccharomyces cerevisiae S288c (Taxon ID: 559292)
Method Details:
Experimental Method:
X-RAY DIFFRACTION
Resolution:
2.40 Å
R-Value Free:
0.19
R-Value Work:
0.17
R-Value Observed:
0.17
Space Group:
P 1 21 1
4R18 validation report
Macromolecular Entities
Protein Blast
Polymer Type:polypeptide(L)
Molecule:PROTEASOME SUBUNIT ALPHA TYPE-2
Gene (Uniprot):PRE8
Chain IDs:A, O
Chain Length:250
Number of Molecules:2
Biological Source:Saccharomyces cerevisiae S288c
UniProt ID:P23639 Pfam ID:PF10584, PF00227
Protein Blast
Polymer Type:polypeptide(L)
Molecule:PROTEASOME SUBUNIT ALPHA TYPE-3
Gene (Uniprot):PRE9
Chain IDs:B, P
Chain Length:258
Number of Molecules:2
Biological Source:Saccharomyces cerevisiae S288c
UniProt ID:P23638 Pfam ID:PF10584, PF00227
Protein Blast
Polymer Type:polypeptide(L)
Molecule:PROTEASOME SUBUNIT ALPHA TYPE-4
Gene (Uniprot):PRE6
Chain IDs:C, Q
Chain Length:254
Number of Molecules:2
Biological Source:Saccharomyces cerevisiae S288c
UniProt ID:P40303 Pfam ID:PF10584, PF00227
Protein Blast
Polymer Type:polypeptide(L)
Molecule:PROTEASOME SUBUNIT ALPHA TYPE-5
Gene (Uniprot):PUP2
Chain IDs:D, R
Chain Length:260
Number of Molecules:2
Biological Source:Saccharomyces cerevisiae S288c
UniProt ID:P32379 Pfam ID:PF10584, PF00227
Protein Blast
Polymer Type:polypeptide(L)
Molecule:PROTEASOME SUBUNIT ALPHA TYPE-6
Gene (Uniprot):PRE5
Chain IDs:E, S
Chain Length:234
Number of Molecules:2
Biological Source:Saccharomyces cerevisiae S288c
UniProt ID:P40302 Pfam ID:PF10584, PF00227
Protein Blast
Polymer Type:polypeptide(L)
Molecule:PROTEASOME SUBUNIT ALPHA TYPE-7
Gene (Uniprot):PRE10
Chain IDs:F, T
Chain Length:288
Number of Molecules:2
Biological Source:Saccharomyces cerevisiae S288c
UniProt ID:P21242 Pfam ID:PF10584, PF00227
Protein Blast
Polymer Type:polypeptide(L)
Molecule:PROTEASOME SUBUNIT ALPHA TYPE-1
Gene (Uniprot):SCL1
Chain IDs:G, U
Chain Length:252
Number of Molecules:2
Biological Source:Saccharomyces cerevisiae S288c
UniProt ID:P21243 Pfam ID:PF10584, PF00227 EC:3.4.25.1
Protein Blast
Polymer Type:polypeptide(L)
Molecule:PROTEASOME SUBUNIT BETA TYPE-2
Gene (Uniprot):PUP1
Chain IDs:H, V
Chain Length:232
Number of Molecules:2
Biological Source:Saccharomyces cerevisiae S288c
UniProt ID:P25043 Pfam ID:PF00227, PF12465
Protein Blast
Polymer Type:polypeptide(L)
Molecule:PROTEASOME SUBUNIT BETA TYPE-3
Gene (Uniprot):PUP3
Chain IDs:I, W
Chain Length:205
Number of Molecules:2
Biological Source:Saccharomyces cerevisiae S288c
UniProt ID:P25451 Pfam ID:PF00227
Protein Blast
Polymer Type:polypeptide(L)
Molecule:PROTEASOME SUBUNIT BETA TYPE-4
Gene (Uniprot):PRE1
Chain IDs:J, X
Chain Length:198
Number of Molecules:2
Biological Source:Saccharomyces cerevisiae S288c
UniProt ID:P22141 Pfam ID:PF00227
Protein Blast
Polymer Type:polypeptide(L)
Molecule:PROTEASOME SUBUNIT BETA TYPE-5
Gene (Uniprot):PRE2
Chain IDs:K, Y
Chain Length:212
Number of Molecules:2
Biological Source:Saccharomyces cerevisiae S288c
UniProt ID:P30656 Pfam ID:PF00227
Protein Blast
Polymer Type:polypeptide(L)
Molecule:PROTEASOME SUBUNIT BETA TYPE-6
Gene (Uniprot):PRE7
Chain IDs:L, Z
Chain Length:222
Number of Molecules:2
Biological Source:Saccharomyces cerevisiae S288c
UniProt ID:P23724 Pfam ID:PF00227
Protein Blast
Polymer Type:polypeptide(L)
Molecule:PROTEASOME SUBUNIT BETA TYPE-7
Gene (Uniprot):PRE4
Chain IDs:M, AA (auth: a)
Chain Length:250
Number of Molecules:2
Biological Source:Saccharomyces cerevisiae S288c
UniProt ID:P30657 Pfam ID:PF00227
Protein Blast
Polymer Type:polypeptide(L)
Molecule:PROTEASOME SUBUNIT BETA TYPE-1
Gene (Uniprot):PRE3
Chain IDs:N, BA (auth: b)
Chain Length:258
Number of Molecules:2
Biological Source:Saccharomyces cerevisiae S288c
UniProt ID:P38624 Pfam ID:PF00227 EC:3.4.25.1
Ligand Molecules
ABA
MG
Primary Citation
Selective inhibition of the immunoproteasome by ligand-induced crosslinking of the active site.
Angew.Chem.Int.Ed.Engl. 53 11969 11973 (2014)
PMID: 25244435 DOI: 10.1002/anie.201406964

Abstact

The concept of proteasome inhibition ranks among the latest achievements in the treatment of blood cancer and represents a promising strategy for modulating autoimmune diseases. In this study, we describe peptidic sulfonyl fluoride inhibitors that selectively block the catalytic β5 subunit of the immunoproteasome by inducing only marginal cytotoxic effects. Structural and mass spectrometric analyses revealed a novel reaction mechanism involving polarity inversion and irreversible crosslinking of the proteasomal active site. We thus identified the sulfonyl fluoride headgroup for the development and optimization of immunoproteasome selective compounds and their possible application in autoimmune disorders.

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Protein

Chemical

Disease

Primary Citation of related structures
1RYP
4R17