4LQI image
Deposition Date 2013-07-18
Release Date 2013-12-25
Last Version Date 2024-10-30
Entry Detail
PDB ID:
4LQI
Keywords:
HYDROLASE/HYDROLASE INHIBITOR
Title:
Yeast 20S Proteasome in complex with Vibralactone
Biological Source:
Source Organism:
Saccharomyces cerevisiae (Taxon ID: 4932)
Method Details:
Experimental Method:
X-RAY DIFFRACTION
Resolution:
2.70 Å
R-Value Free:
0.22
R-Value Work:
0.20
R-Value Observed:
0.20
Space Group:
P 1 21 1
4LQI 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
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:196
Number of Molecules:2
Biological Source:Saccharomyces cerevisiae
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:241
Number of Molecules:2
Biological Source:Saccharomyces cerevisiae
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:242
Number of Molecules:2
Biological Source:Saccharomyces cerevisiae
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:233
Number of Molecules:2
Biological Source:Saccharomyces cerevisiae
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:244
Number of Molecules:2
Biological Source:Saccharomyces cerevisiae
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:243
Number of Molecules:2
Biological Source:Saccharomyces cerevisiae
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:222
Number of Molecules:2
Biological Source:Saccharomyces cerevisiae
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:204
Number of Molecules:2
Biological Source:Saccharomyces cerevisiae
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
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
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
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
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:196
Number of Molecules:2
Biological Source:Saccharomyces cerevisiae
UniProt ID:P38624 Pfam ID:PF00227 EC:3.4.25.1
Ligand Molecules
1Y9
Primary Citation
Omuralide and Vibralactone: Differences in the Proteasome-beta-Lactone-gamma-Lactam Binding Scaffold Alter Target Preferences.
Angew.Chem.Int.Ed.Engl. 53 571 574 (2014)
PMID: 24285701 DOI: 10.1002/anie.201308567

Abstact

Despite their structural similarity, the natural products omuralide and vibralactone have different biological targets. While omuralide blocks the chymotryptic activity of the proteasome with an IC50 value of 47 nM, vibralactone does not have any effect at this protease up to a concentration of 1 mM. Activity-based protein profiling in HeLa cells revealed that the major targets of vibralactone are APT1 and APT2.

Legend

Protein

Chemical

Disease

Primary Citation of related structures
1RYP
2FAK
3E47