5M2B

Yeast 20S proteasome with human beta5i (1-138) and human beta6 (97-111; 118-133) in complex with thiazole based inhibitor Ro19


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.7 Å
  • R-Value Free: 0.218 
  • R-Value Work: 0.200 

wwPDB Validation 3D Report Full Report


This is version 1.1 of the entry. See complete history

Literature

Structural Elucidation of a Nonpeptidic Inhibitor Specific for the Human Immunoproteasome.

Cui, H.Baur, R.Le Chapelain, C.Dubiella, C.Heinemeyer, W.Huber, E.M.Groll, M.

(2017) Chembiochem 18: 523-526

  • DOI: 10.1002/cbic.201700021

  • PubMed Abstract: 
  • Selective inhibition of the immunoproteasome is a promising approach towards the development of immunomodulatory drugs. Recently, a class of substituted thiazole compounds that combine a nonpeptidic scaffold with the absence of an electrophile was re ...

    Selective inhibition of the immunoproteasome is a promising approach towards the development of immunomodulatory drugs. Recently, a class of substituted thiazole compounds that combine a nonpeptidic scaffold with the absence of an electrophile was reported in a patent. Here, we investigated the mode of action of the lead compound by using a sophisticated chimeric yeast model of the human immunoproteasome for structural studies. The inhibitor adopts a unique orientation perpendicular to the β5i substrate-binding channel. Distinct interactions between the inhibitor and the subpockets of the human immunoproteasome account for its isotype selectivity.


    Organizational Affiliation

    Center for Integrated Protein Science Munich (CIPSM), Department of Chemistry, Technische Universität München, Lichtenbergstrasse 4, 85748, Garching, Germany.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
Proteasome subunit alpha type-2
A, O
250Saccharomyces cerevisiae (strain ATCC 204508 / S288c)Mutation(s): 0 
Gene Names: PRE8 (PRS4)
EC: 3.4.25.1
Find proteins for P23639 (Saccharomyces cerevisiae (strain ATCC 204508 / S288c))
Go to UniProtKB:  P23639
Entity ID: 2
MoleculeChainsSequence LengthOrganismDetails
Proteasome subunit alpha type-3
B, P
258Saccharomyces cerevisiae (strain ATCC 204508 / S288c)Mutation(s): 0 
Gene Names: PRE9 (PRS5)
EC: 3.4.25.1
Find proteins for P23638 (Saccharomyces cerevisiae (strain ATCC 204508 / S288c))
Go to UniProtKB:  P23638
Entity ID: 3
MoleculeChainsSequence LengthOrganismDetails
Proteasome subunit alpha type-4
C, Q
254Saccharomyces cerevisiae (strain ATCC 204508 / S288c)Mutation(s): 0 
Gene Names: PRE6
EC: 3.4.25.1
Find proteins for P40303 (Saccharomyces cerevisiae (strain ATCC 204508 / S288c))
Go to UniProtKB:  P40303
Entity ID: 4
MoleculeChainsSequence LengthOrganismDetails
Proteasome subunit alpha type-5
D, R
260Saccharomyces cerevisiae (strain ATCC 204508 / S288c)Mutation(s): 0 
Gene Names: PUP2 (DOA5)
EC: 3.4.25.1
Find proteins for P32379 (Saccharomyces cerevisiae (strain ATCC 204508 / S288c))
Go to UniProtKB:  P32379
Entity ID: 5
MoleculeChainsSequence LengthOrganismDetails
Proteasome subunit alpha type-6
E, S
234Saccharomyces cerevisiae (strain ATCC 204508 / S288c)Mutation(s): 0 
Gene Names: PRE5
EC: 3.4.25.1
Find proteins for P40302 (Saccharomyces cerevisiae (strain ATCC 204508 / S288c))
Go to UniProtKB:  P40302
Entity ID: 6
MoleculeChainsSequence LengthOrganismDetails
Probable proteasome subunit alpha type-7
F, T
288Saccharomyces cerevisiae (strain ATCC 204508 / S288c)Mutation(s): 0 
Gene Names: PRE10 (PRC1, PRS1)
EC: 3.4.25.1
Find proteins for P21242 (Saccharomyces cerevisiae (strain ATCC 204508 / S288c))
Go to UniProtKB:  P21242
Entity ID: 7
MoleculeChainsSequence LengthOrganismDetails
Proteasome subunit alpha type-1
G, U
252Saccharomyces cerevisiae (strain ATCC 204508 / S288c)Mutation(s): 0 
Gene Names: SCL1 (PRC2, PRS2)
EC: 3.4.25.1
Find proteins for P21243 (Saccharomyces cerevisiae (strain ATCC 204508 / S288c))
Go to UniProtKB:  P21243
Entity ID: 8
MoleculeChainsSequence LengthOrganismDetails
Proteasome subunit beta type-2
H, V
232Saccharomyces cerevisiae (strain ATCC 204508 / S288c)Mutation(s): 0 
Gene Names: PUP1
EC: 3.4.25.1
Find proteins for P25043 (Saccharomyces cerevisiae (strain ATCC 204508 / S288c))
Go to UniProtKB:  P25043
Entity ID: 9
MoleculeChainsSequence LengthOrganismDetails
Proteasome subunit beta type-3
I, W
205Saccharomyces cerevisiae (strain ATCC 204508 / S288c)Mutation(s): 0 
Gene Names: PUP3
EC: 3.4.25.1
Find proteins for P25451 (Saccharomyces cerevisiae (strain ATCC 204508 / S288c))
Go to UniProtKB:  P25451
Entity ID: 10
MoleculeChainsSequence LengthOrganismDetails
Proteasome subunit beta type-4
J, X
198Saccharomyces cerevisiae (strain ATCC 204508 / S288c)Mutation(s): 0 
Gene Names: PRE1
EC: 3.4.25.1
Find proteins for P22141 (Saccharomyces cerevisiae (strain ATCC 204508 / S288c))
Go to UniProtKB:  P22141
Entity ID: 11
MoleculeChainsSequence LengthOrganismDetails
Proteasome subunit beta type-8,Proteasome subunit beta type-5
K, Y
211Saccharomyces cerevisiae (strain ATCC 204508 / S288c)Homo sapiens
This entity is chimeric
Mutation(s): 0 
Gene Names: PRE2 (DOA3, PRG1), PSMB8 (LMP7, PSMB5i, RING10, Y2)
EC: 3.4.25.1 3.4.25.1
Find proteins for P30656 (Saccharomyces cerevisiae (strain ATCC 204508 / S288c))
Go to UniProtKB:  P30656
Find proteins for P28062 (Homo sapiens)
Go to Gene View: PSMB8
Go to UniProtKB:  P28062
Entity ID: 12
MoleculeChainsSequence LengthOrganismDetails
Proteasome subunit beta type-6,Proteasome subunit beta type,Proteasome subunit beta type-6,Proteasome subunit beta type,Proteasome subunit beta type-6
L, Z
222Homo sapiensSaccharomyces cerevisiae (strain ATCC 204508 / S288c)
This entity is chimeric
Mutation(s): 0 
Gene Names: PSMB1 (PSC5), PRE7 (PRS3, PTS1)
EC: 3.4.25.1 3.4.25.1
Find proteins for P20618 (Homo sapiens)
Go to Gene View: PSMB1
Go to UniProtKB:  P20618
Find proteins for P23724 (Saccharomyces cerevisiae (strain ATCC 204508 / S288c))
Go to UniProtKB:  P23724
Entity ID: 13
MoleculeChainsSequence LengthOrganismDetails
Proteasome subunit beta type-7
M, a
246Saccharomyces cerevisiae (strain ATCC 204508 / S288c)Mutation(s): 0 
Gene Names: PRE4
EC: 3.4.25.1
Find proteins for P30657 (Saccharomyces cerevisiae (strain ATCC 204508 / S288c))
Go to UniProtKB:  P30657
Entity ID: 14
MoleculeChainsSequence LengthOrganismDetails
Proteasome subunit beta type-1
N, b
196Saccharomyces cerevisiae (strain ATCC 204508 / S288c)Mutation(s): 0 
Gene Names: PRE3
EC: 3.4.25.1
Find proteins for P38624 (Saccharomyces cerevisiae (strain ATCC 204508 / S288c))
Go to UniProtKB:  P38624
Small Molecules
Ligands 3 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
CL
Query on CL

Download SDF File 
Download CCD File 
b, G, N, U
CHLORIDE ION
Cl
VEXZGXHMUGYJMC-UHFFFAOYSA-M
 Ligand Interaction
MG
Query on MG

Download SDF File 
Download CCD File 
G, I, J, K, L, N, Z
MAGNESIUM ION
Mg
JLVVSXFLKOJNIY-UHFFFAOYSA-N
 Ligand Interaction
7DX
Query on 7DX

Download SDF File 
Download CCD File 
K, Y
(2~{S})-2-cyclohexyl-4-oxidanylidene-4-[[7-(4-phenyl-1,3-thiazol-2-yl)quinolin-2-yl]amino]butanoic acid
C28 H27 N3 O3 S
APWRCWKBBYBSJJ-QFIPXVFZSA-N
 Ligand Interaction
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.7 Å
  • R-Value Free: 0.218 
  • R-Value Work: 0.200 
  • Space Group: P 1 21 1
Unit Cell:
Length (Å)Angle (°)
a = 135.160α = 90.00
b = 301.150β = 112.81
c = 145.980γ = 90.00
Software Package:
Software NamePurpose
XDSdata reduction
REFMACrefinement
REFMACphasing
XSCALEdata scaling

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History & Funding Information

Deposition Data

  • Deposited Date: 2016-10-12 
  • Released Date: 2017-01-25 
  • Deposition Author(s): Groll, M.

Funding OrganizationLocationGrant Number
DFGGermanyGR1861/10-1

Revision History 

  • Version 1.0: 2017-01-25
    Type: Initial release
  • Version 1.1: 2017-03-29
    Type: Database references