1G4A

CRYSTAL STRUCTURES OF THE HSLVU PEPTIDASE-ATPASE COMPLEX REVEAL AN ATP-DEPENDENT PROTEOLYSIS MECHANISM

• PDB DOI: https://doi.org/10.2210/pdb1G4A/pdb

• Classification: CHAPERONE/HYDROLASE
• Organism(s): Escherichia coli
• Expression System: Escherichia coli
• Mutation(s): No 


• Deposited: 2000-10-26 Released: 2001-02-21 
• Deposition Author(s): Wang, J., Song, J.J., Franklin, M.C., Kamtekar, S., Im, Y.J., Rho, S.H., Seong, I.S., Lee, C.S., Chung, C.H., Eom, S.H.

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Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 3.00 Å
• R-Value Free: 0.294 
• R-Value Work: 0.257 
• R-Value Observed: 0.257 

Re-refinement Note

A newer entry is available that reflects an alternative modeling of the original data: 5JI3

Literature

Crystal structures of the HslVU peptidase-ATPase complex reveal an ATP-dependent proteolysis mechanism.

Wang, J., Song, J.J., Franklin, M.C., Kamtekar, S., Im, Y.J., Rho, S.H., Seong, I.S., Lee, C.S., Chung, C.H., Eom, S.H.

(2001) Structure 9: 177-184

• PubMed: 11250202 
• DOI: https://doi.org/10.1016/s0969-2126(01)00570-6
• Primary Citation of Related Structures:  
  1G4A, 1G4B


• PubMed Abstract: 
  

  The bacterial heat shock locus HslU ATPase and HslV peptidase together form an ATP-dependent HslVU protease. Bacterial HslVU is a homolog of the eukaryotic 26S proteasome. Crystallographic studies of HslVU should provide an understanding of ATP-dependent protein unfolding, translocation, and proteolysis by this and other ATP-dependent proteases.

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Organizational Affiliation: 

Department of Molecular Biophysics, Biochemistry, 266 Whitney Avenue, Yale University, 06520, New Haven, CT, USA. [e-mail]

Biological Assembly 1  

Global Symmetry: Cyclic - C6  (Explore in 3D)
Global Stoichiometry: Hetero 18-mer - A12B6 

Biological assembly 1 assigned by authors.

Macromolecule Content

• Total Structure Weight: 176.09 kDa 
• Atom Count: 10,920 
• Modelled Residue Count: 1,404 
• Deposited Residue Count: 1,586 
• Unique protein chains: 2

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
ATP-DEPENDENT HSL PROTEASE ATP-BINDING SUBUNIT HSLU	A [auth E], B [auth F]	443	Escherichia coli	Mutation(s): 0
UniProt
Find proteins for P0A6H5 (Escherichia coli (strain K12)) Explore P0A6H5  Go to UniProtKB:  P0A6H5

Entity ID: 2
Molecule	Chains	Sequence Length	Organism	Details	Image
ATP-DEPENDENT PROTEASE HSLV	C [auth B], D [auth A], E [auth D], F [auth C]	175	Escherichia coli	Mutation(s): 0  EC: 3.4.99
UniProt
Find proteins for P0A7B8 (Escherichia coli (strain K12)) Explore P0A7B8  Go to UniProtKB:  P0A7B8

Small Molecules

Ligands 1 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram
DAT	G [auth E], H [auth F]	2'-DEOXYADENOSINE-5'-DIPHOSPHATE C10 H15 N5 O9 P2 DAEAPNUQQAICNR-RRKCRQDMSA-N

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 3.00 Å
• R-Value Free: 0.294 
• R-Value Work: 0.257 
• R-Value Observed: 0.257 
• Space Group: P 3 2 1

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 169.995	α = 90
b = 169.995	β = 90
c = 161.317	γ = 120

Software Package:

Software Name	Purpose
X-PLOR	model building
CNS	refinement
DENZO	data reduction
SCALEPACK	data scaling
X-PLOR	phasing

Structure Validation

Entry History 

Deposition Data

• Released Date: 2001-02-21 
Deposition Author(s): Wang, J., Song, J.J., Franklin, M.C., Kamtekar, S., Im, Y.J., Rho, S.H., Seong, I.S., Lee, C.S., Chung, C.H., Eom, S.H.

Revision History  

• Version 1.0: 2001-02-21
  Type: Initial release
  
• Version 1.1: 2008-04-27
  Changes: Version format compliance
• Version 1.2: 2011-07-13
  Changes: Version format compliance
• Version 1.3: 2024-02-07
  Changes: Data collection, Database references, Derived calculations