1OFI

Asymmetric complex between HslV and I-domain deleted HslU (H. influenzae)


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 3.20 Å
  • R-Value Free: 0.327 
  • R-Value Work: 0.232 
  • R-Value Observed: 0.232 

wwPDB Validation   3D Report Full Report


This is version 1.2 of the entry. See complete history


Literature

Structure and Reactivity of an Asymmetric Complex between Hslv and I-Domain Deleted Hslu, a Prokaryotic Homolog of the Eukaryotic Proteasome

Kwon, A.R.Kessler, B.M.Overkleeft, H.S.Mckay, D.B.

(2003) J Mol Biol 330: 185

  • DOI: 10.1016/s0022-2836(03)00580-1
  • Primary Citation of Related Structures:  
    1OFI, 1OFH

  • PubMed Abstract: 
  • In the prokaryotic homolog of the eukaryotic proteasome, HslUV, the "double donut" HslV protease is allosterically activated by HslU, an AAA protein of the Clp/Hsp100 family consisting of three (amino-terminal, carboxy-terminal, and intermediate) domains ...

    In the prokaryotic homolog of the eukaryotic proteasome, HslUV, the "double donut" HslV protease is allosterically activated by HslU, an AAA protein of the Clp/Hsp100 family consisting of three (amino-terminal, carboxy-terminal, and intermediate) domains. The intermediate domains of HslU, which extend like tentacles from the hexameric ring formed by the amino-terminal and carboxy-terminal domains, have been deleted; an asymmetric HslU(DeltaI)(6)HslV(12) complex has been crystallized; and the structure has been solved to 2.5A resolution, revealing an assembly in which a HslU(DeltaI) hexamer binds one end of the HslV dodecamer. The conformation of the protomers of the HslU(DeltaI)-complexed HslV hexamer is similar to that in the symmetric wild-type HslUV complex, while the protomer conformation of the uncomplexed HslV hexamer is similar to that of HslV alone. Reaction in the crystals with a vinyl sulfone inhibitor reveals that the HslU(DeltaI)-complexed HslV hexamer is active, while the uncomplexed HslV hexamer is inactive. These results confirm that HslV can be activated by binding of a hexameric HslU(DeltaI)(6) ring lacking the I domains, that activation is effected through a conformational change in HslV rather than through alteration of the size of the entry channel into the protease catalytic cavity, and that the two HslV(6) rings in the protease dodecamer are activated independently rather than cooperatively.


    Related Citations: 
    • Structure of Hsluv Complexed with a Vinyl Sulfone Inhibitor: Corroboration of a Proposed Mechanism of Allosteric Activation of Hslv by Hslu
      Sousa, M.C., Kessler, B.M., Overkleeft, H.S., Mckay, D.B.
      (2002) J Mol Biol 318: 779
    • Crystal and Solution Structures of an Hsluv Protease-Chaperone Complex
      Sousa, M.C., Trame, C.B., Tsuruta, H., Wilbanks, S.M., Reddy, V.S., Mckay, D.B.
      (2000) Cell 103: 633

    Organizational Affiliation

    Department of Structural Biology, Stanford University School of Medicine, Sherman Fairchild Building, Stanford, CA 94305, USA.



Macromolecules
Find similar proteins by:  (by identity cutoff)  |  Structure
Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
ATP-DEPENDENT HSL PROTEASE ATP-BINDING SUBUNIT HSLU ABC310Haemophilus influenzae Rd KW20Mutation(s): 0 
Gene Names: hslUHI_0497
Find proteins for P43773 (Haemophilus influenzae (strain ATCC 51907 / DSM 11121 / KW20 / Rd))
Explore P43773 
Go to UniProtKB:  P43773
Protein Feature View
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  • Reference Sequence
Find similar proteins by:  (by identity cutoff)  |  Structure
Entity ID: 2
MoleculeChainsSequence LengthOrganismDetailsImage
ATP-DEPENDENT PROTEASE HSLV GHILMN174Haemophilus influenzae Rd KW20Mutation(s): 0 
Gene Names: hslVHI_0496
EC: 3.4.25 (PDB Primary Data), 3.4.25.2 (UniProt)
Find proteins for P43772 (Haemophilus influenzae (strain ATCC 51907 / DSM 11121 / KW20 / Rd))
Explore P43772 
Go to UniProtKB:  P43772
Protein Feature View
Expand
  • Reference Sequence
Small Molecules
Ligands 4 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
LVS
Query on LVS

Download Ideal Coordinates CCD File 
G, H, I
4-IODO-3-NITROPHENYL ACETYL-LEUCINYL-LEUCINYL-LEUCINYL-VINYLSULFONE
C28 H43 I N4 O8 S
RSYTXXARKSZDKY-PUHATCMVSA-N
 Ligand Interaction
ADP
Query on ADP

Download Ideal Coordinates CCD File 
A, B, C
ADENOSINE-5'-DIPHOSPHATE
C10 H15 N5 O10 P2
XTWYTFMLZFPYCI-KQYNXXCUSA-N
 Ligand Interaction
PO4
Query on PO4

Download Ideal Coordinates CCD File 
A, B, C
PHOSPHATE ION
O4 P
NBIIXXVUZAFLBC-UHFFFAOYSA-K
 Ligand Interaction
MG
Query on MG

Download Ideal Coordinates CCD File 
A, B, C, G, H, I, L, M, N
MAGNESIUM ION
Mg
JLVVSXFLKOJNIY-UHFFFAOYSA-N
 Ligand Interaction
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 3.20 Å
  • R-Value Free: 0.327 
  • R-Value Work: 0.232 
  • R-Value Observed: 0.232 
  • Space Group: P 6
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 190.177α = 90
b = 190.177β = 90
c = 114.511γ = 120
Software Package:
Software NamePurpose
CNSrefinement
DENZOdata reduction
SCALEPACKdata scaling
AMoREphasing

Structure Validation

View Full Validation Report



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2003-07-03
    Type: Initial release
  • Version 1.1: 2011-05-08
    Changes: Version format compliance
  • Version 1.2: 2011-07-13
    Changes: Version format compliance