6HTR

Yeast 20S proteasome with human beta2c (S171G) in complex with 13


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.60 Å
  • R-Value Free: 0.225 
  • R-Value Work: 0.194 
  • R-Value Observed: 0.195 

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Ligand Structure Quality Assessment 


This is version 1.2 of the entry. See complete history


Literature

Structure-Based Design of Inhibitors Selective for Human Proteasome beta 2c or beta 2i Subunits.

Xin, B.T.Huber, E.M.de Bruin, G.Heinemeyer, W.Maurits, E.Espinal, C.Du, Y.Janssens, M.Weyburne, E.S.Kisselev, A.F.Florea, B.I.Driessen, C.van der Marel, G.A.Groll, M.Overkleeft, H.S.

(2019) J Med Chem 62: 1626-1642

  • DOI: https://doi.org/10.1021/acs.jmedchem.8b01884
  • Primary Citation of Related Structures:  
    6HTB, 6HTC, 6HTD, 6HTP, 6HTR, 6HUB, 6HUC, 6HUQ, 6HUU, 6HUV, 6HV3, 6HV4, 6HV5, 6HV7, 6HVA, 6HVR, 6HVS, 6HVT, 6HVU, 6HVV, 6HVW, 6HVX, 6HVY, 6HW0, 6HW3, 6HW4, 6HW5, 6HW6, 6HW7, 6HW8, 6HW9, 6HWA, 6HWB, 6HWC, 6HWD, 6HWE, 6HWF

  • PubMed Abstract: 

    Subunit-selective proteasome inhibitors are valuable tools to assess the biological and medicinal relevance of individual proteasome active sites. Whereas the inhibitors for the β1c, β1i, β5c, and β5i subunits exploit the differences in the substrate-binding channels identified by X-ray crystallography, compounds selectively targeting β2c or β2i could not yet be rationally designed because of the high structural similarity of these two subunits. Here, we report the development, chemical synthesis, and biological screening of a compound library that led to the identification of the β2c- and β2i-selective compounds LU-002c (4; IC 50 β2c: 8 nM, IC 50 β2i/β2c: 40-fold) and LU-002i (5; IC 50 β2i: 220 nM, IC 50 β2c/β2i: 45-fold), respectively. Co-crystal structures with β2 humanized yeast proteasomes visualize protein-ligand interactions crucial for subunit specificity. Altogether, organic syntheses, activity-based protein profiling, yeast mutagenesis, and structural biology allowed us to decipher significant differences of β2 substrate-binding channels and to complete the set of subunit-selective proteasome inhibitors.


  • Organizational Affiliation

    Gorlaeus Laboratories , Leiden Institute of Chemistry and Netherlands Proteomics Centre , Einsteinweg 55 , 2333 CC Leiden , Netherlands.


Macromolecules
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Entity ID: 1
MoleculeChains Sequence LengthOrganismDetailsImage
PROTEASOME SUBUNIT ALPHA TYPE-2
A, O
250Saccharomyces cerevisiae S288CMutation(s): 0 
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Entity ID: 2
MoleculeChains Sequence LengthOrganismDetailsImage
Proteasome subunit alpha type-3
B, P
258Saccharomyces cerevisiae S288CMutation(s): 0 
EC: 3.4.25.1
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Entity ID: 3
MoleculeChains Sequence LengthOrganismDetailsImage
PROTEASOME SUBUNIT ALPHA TYPE-4
C, Q
254Saccharomyces cerevisiae S288CMutation(s): 0 
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Entity ID: 4
MoleculeChains Sequence LengthOrganismDetailsImage
PROTEASOME SUBUNIT ALPHA TYPE-5
D, R
260Saccharomyces cerevisiae S288CMutation(s): 0 
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Entity ID: 5
MoleculeChains Sequence LengthOrganismDetailsImage
PROTEASOME SUBUNIT ALPHA TYPE-6
E, S
234Saccharomyces cerevisiae S288CMutation(s): 0 
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Entity ID: 6
MoleculeChains Sequence LengthOrganismDetailsImage
Probable proteasome subunit alpha type-7
F, T
288Saccharomyces cerevisiae S288CMutation(s): 0 
EC: 3.4.25.1
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Entity ID: 7
MoleculeChains Sequence LengthOrganismDetailsImage
PROTEASOME SUBUNIT ALPHA TYPE-1
G, U
252Saccharomyces cerevisiae S288CMutation(s): 0 
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Entity ID: 8
MoleculeChains Sequence LengthOrganismDetailsImage
Proteasome subunit beta type-7
H, V
234Homo sapiensMutation(s): 1 
Gene Names: PSMB7Z
EC: 3.4.25.1
UniProt & NIH Common Fund Data Resources
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PHAROS:  Q99436
GTEx:  ENSG00000136930 
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Entity ID: 9
MoleculeChains Sequence LengthOrganismDetailsImage
Proteasome subunit beta type-3
I, W
205Saccharomyces cerevisiae S288CMutation(s): 0 
EC: 3.4.25.1
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Entity ID: 10
MoleculeChains Sequence LengthOrganismDetailsImage
PROTEASOME SUBUNIT BETA TYPE-4
J, X
198Saccharomyces cerevisiae S288CMutation(s): 0 
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Entity ID: 11
MoleculeChains Sequence LengthOrganismDetailsImage
Proteasome subunit beta type-5
K, Y
212Saccharomyces cerevisiae S288CMutation(s): 0 
EC: 3.4.25.1
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Entity ID: 12
MoleculeChains Sequence LengthOrganismDetailsImage
Proteasome subunit beta type-6
L, Z
222Saccharomyces cerevisiae S288CMutation(s): 0 
EC: 3.4.25.1
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Entity ID: 13
MoleculeChains Sequence LengthOrganismDetailsImage
Proteasome subunit beta type-7AA [auth a],
M
246Saccharomyces cerevisiae S288CMutation(s): 0 
EC: 3.4.25.1
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Entity ID: 14
MoleculeChains Sequence LengthOrganismDetailsImage
PROTEASOME SUBUNIT BETA TYPE-1BA [auth b],
N
196Saccharomyces cerevisiae S288CMutation(s): 0 
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Small Molecules
Ligands 2 Unique
IDChains Name / Formula / InChI Key2D Diagram3D Interactions
GQT
Query on GQT

Download Ideal Coordinates CCD File 
DA [auth H],
GA [auth K],
JA [auth V],
LA [auth Y]
(2~{S})-~{N}-[(2~{S})-1-[[(2~{S})-1-[4-(aminomethyl)phenyl]-4-methylsulfonyl-butan-2-yl]amino]-3-oxidanyl-1-oxidanylidene-propan-2-yl]-2-[[(2~{S})-2-azido-3-phenyl-propanoyl]amino]-4-methyl-pentanamide
C30 H43 N7 O6 S
NOFMETNXDOBCGZ-WKAQUBQDSA-N
MG
Query on MG

Download Ideal Coordinates CCD File 
CA [auth G]
EA [auth H]
FA [auth I]
HA [auth K]
IA [auth N]
CA [auth G],
EA [auth H],
FA [auth I],
HA [auth K],
IA [auth N],
KA [auth V],
MA [auth Y],
NA [auth Z]
MAGNESIUM ION
Mg
JLVVSXFLKOJNIY-UHFFFAOYSA-N
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.60 Å
  • R-Value Free: 0.225 
  • R-Value Work: 0.194 
  • R-Value Observed: 0.195 
  • Space Group: P 1 21 1
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 136.36α = 90
b = 300.53β = 113.41
c = 144.81γ = 90
Software Package:
Software NamePurpose
XDSdata reduction
XSCALEdata scaling
REFMACphasing
REFMACrefinement

Structure Validation

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Ligand Structure Quality Assessment 


Entry History & Funding Information

Deposition Data


Funding OrganizationLocationGrant Number
German Research FoundationGermanyGR1861/10-1

Revision History  (Full details and data files)

  • Version 1.0: 2019-01-30
    Type: Initial release
  • Version 1.1: 2019-04-24
    Changes: Data collection, Database references
  • Version 1.2: 2024-01-24
    Changes: Data collection, Database references, Derived calculations, Refinement description