4R67

Human constitutive 20S proteasome in complex with carfilzomib

Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.89 Å
  • R-Value Free: 0.245 
  • R-Value Work: 0.215 
  • R-Value Observed: 0.217 

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Literature

Crystal Structure of the Human 20S Proteasome in Complex with Carfilzomib.

Harshbarger, W., Miller, C., Diedrich, C., Sacchettini, J.

(2015) Structure 23: 418-424

  • DOI: https://doi.org/10.1016/j.str.2014.11.017
  • Primary Citation of Related Structures:  
    4R3O, 4R67

  • PubMed Abstract: 

    • Proteasome inhibition is highly effective as a treatment for multiple myeloma, and recently carfilzomib was granted US FDA approval for the treatment of relapsed and refractory multiple myeloma. Here, we report the X-ray crystal structure of the human constitutive 20S proteasome with and without carfilzomib bound at 2 ...

    Proteasome inhibition is highly effective as a treatment for multiple myeloma, and recently carfilzomib was granted US FDA approval for the treatment of relapsed and refractory multiple myeloma. Here, we report the X-ray crystal structure of the human constitutive 20S proteasome with and without carfilzomib bound at 2.9 and 2.6 Å, respectively. Our data indicate that the S3 and S4 binding pockets play a pivotal role in carfilzomib's selectivity for chymotrypsin-like sites. Structural comparison with the mouse immunoproteasome crystal structure reveals amino acid substitutions that explain carfilzomib's slight preference for chymotrypsin-like subunits of constitutive proteasomes. In addition, comparison of the human proteasome:carfilzomib complex with the mouse proteasome:PR-957 complex reveals new details that explain why PR-957 is selective for immunoproteasomes. Together, the data presented here support the design of inhibitors for either constitutive or immunoproteasomes, with implications for the treatment of cancers as well as autoimmune and neurodegenerative diseases.

    Organizational Affiliation: 

    Department of Chemistry, Texas A&M University, College Station, TX 77842-3012, USA; Department of Biochemistry and Biophysics, Texas A&M University, College Station, TX 77842-3012, USA. Electronic address: sacchett@tamu.edu.



Macromolecules
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Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
Proteasome subunit alpha type-6A,
CA [auth c],
O,
QA [auth q]		244Homo sapiensMutation(s): 0 
Gene Names: PSMA6, PROS27
EC: 3.4.25.1
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PHAROS:  P60900
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UniProt GroupP60900
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Entity ID: 2
MoleculeChainsSequence LengthOrganismDetailsImage
Proteasome subunit alpha type-2B,
DA [auth d],
P,
RA [auth r]		233Homo sapiensMutation(s): 0 
Gene Names: PSMA2, HC3, PSC3
EC: 3.4.25.1
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UniProt GroupP25787
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Entity ID: 3
MoleculeChainsSequence LengthOrganismDetailsImage
Proteasome subunit alpha type-4C,
EA [auth e],
Q,
SA [auth s]		250Homo sapiensMutation(s): 0 
Gene Names: PSMA4, HC9, PSC9
EC: 3.4.25.1
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UniProt GroupP25789
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Entity ID: 4
MoleculeChainsSequence LengthOrganismDetailsImage
Proteasome subunit alpha type-7D,
FA [auth f],
R,
TA [auth t]		243Homo sapiensMutation(s): 0 
Gene Names: PSMA7, HSPC
EC: 3.4.25.1
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Entity ID: 5
MoleculeChainsSequence LengthOrganismDetailsImage
Proteasome subunit alpha type-5E,
GA [auth g],
S,
UA [auth u]		234Homo sapiensMutation(s): 0 
Gene Names: PSMA5
EC: 3.4.25.1
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Entity ID: 6
MoleculeChainsSequence LengthOrganismDetailsImage
Proteasome subunit alpha type-1F,
HA [auth h],
T,
VA [auth v]		238Homo sapiensMutation(s): 0 
Gene Names: PSMA1, HC2, NU, PROS30, PSC2
EC: 3.4.25.1
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Entity ID: 7
MoleculeChainsSequence LengthOrganismDetailsImage
Proteasome subunit alpha type-3G,
IA [auth i],
U,
WA [auth w]		245Homo sapiensMutation(s): 0 
Gene Names: PSMA3, HC8, PSC8
EC: 3.4.25.1
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Entity ID: 8
MoleculeChainsSequence LengthOrganismDetailsImage
Proteasome subunit beta type-6H,
JA [auth j],
V,
XA [auth x]		202Homo sapiensMutation(s): 0 
Gene Names: PSMB6, LMPY, Y
EC: 3.4.25.1
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Entity ID: 9
MoleculeChainsSequence LengthOrganismDetailsImage
Proteasome subunit beta type-7I,
KA [auth k],
W,
YA [auth y]		220Homo sapiensMutation(s): 0 
Gene Names: PSMB7, Z
EC: 3.4.25.1
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Entity ID: 10
MoleculeChainsSequence LengthOrganismDetailsImage
Proteasome subunit beta type-3J,
LA [auth l],
X,
ZA [auth z]		204Homo sapiensMutation(s): 0 
Gene Names: PSMB3
EC: 3.4.25.1
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Entity ID: 11
MoleculeChainsSequence LengthOrganismDetailsImage
Proteasome subunit beta type-2AB [auth 0],
K,
MA [auth m],
Y		199Homo sapiensMutation(s): 0 
Gene Names: PSMB2
EC: 3.4.25.1
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Entity ID: 12
MoleculeChainsSequence LengthOrganismDetailsImage
Proteasome subunit beta type-5BB [auth 3],
L,
NA [auth n],
Z		201Homo sapiensMutation(s): 0 
Gene Names: PSMB5, LMPX, MB1, X
EC: 3.4.25.1
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Entity ID: 13
MoleculeChainsSequence LengthOrganismDetailsImage
Proteasome subunit beta type-1AA [auth 1],
CB [auth a],
M,
OA [auth o]		213Homo sapiensMutation(s): 0 
Gene Names: PSMB1, PSC5
EC: 3.4.25.1
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Entity ID: 14
MoleculeChainsSequence LengthOrganismDetailsImage
Proteasome subunit beta type-4BA [auth 2],
DB [auth b],
N,
PA [auth p]		217Homo sapiensMutation(s): 0 
Gene Names: PSMB4, PROS26
EC: 3.4.25.1
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Small Molecules
Ligands 1 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
3BV
Query on 3BV
Download Ideal Coordinates CCD File 
EB [auth H],
FB [auth I],
GB [auth L],
HB [auth V],
IB [auth W],
EB [auth H],
FB [auth I],
GB [auth L],
HB [auth V],
IB [auth W],
JB [auth Z],
KB [auth j],
LB [auth k],
MB [auth n],
NB [auth y],
OB [auth 3]
N-{(2S)-2-[(morpholin-4-ylacetyl)amino]-4-phenylbutanoyl}-L-leucyl-N-[(2R,3S,4S)-1,3-dihydroxy-2,6-dimethylheptan-4-yl]-L-phenylalaninamide
C40 H61 N5 O7
CNNZTHKANUECTE-JMNVNGPASA-N		 Ligand Interaction
Biologically Interesting Molecules (External Reference) 1 Unique
Entity ID: 15
IDChainsNameType/Class2D Diagram3D Interactions
PRD_001243 (3BV)
Query on PRD_001243
EB [auth H] , FB [auth I] , GB [auth L] , HB [auth V] , IB [auth W] , 
EB [auth H], FB [auth I], GB [auth L], HB [auth V], IB [auth W], JB [auth Z], KB [auth j], LB [auth k], MB [auth n], NB [auth y], OB [auth 3]
CARFILZOMIB, bound formPeptide-like / Inhibitor Ligand Interaction
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.89 Å
  • R-Value Free: 0.245 
  • R-Value Work: 0.215 
  • R-Value Observed: 0.217 
  • Space Group: P 1 21 1
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 171.989α = 90
b = 201.027β = 107.93
c = 225.585γ = 90
Software Package:
Software NamePurpose
PHENIXrefinement
HKL-3000data collection
HKL-3000data reduction
HKL-3000data scaling
PHENIXphasing

Structure Validation

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Ligand Structure Quality Assessment 


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Entry History 

Deposition Data

Revision History  (Full details and data files)

  • Version 1.0: 2015-02-11
    Type: Initial release
  • Version 1.1: 2015-02-18
    Changes: Database references