1HT1

Nucleotide-Dependent Conformational Changes in a Protease-Associated ATPase HslU

• PDB DOI: https://doi.org/10.2210/pdb1HT1/pdb

• Classification: CHAPERONE
• Organism(s): Escherichia coli BL21(DE3)
• Expression System: Escherichia coli BL21(DE3)
• Mutation(s): No 


• Deposited: 2000-12-27 Released: 2001-11-14 
• Deposition Author(s): Wang, J., Song, J.J., Seong, I.S., Franklin, M.C., Kamtekar, S., Eom, S.H., Chung, C.H.

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Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 2.80 Å
• R-Value Free: 0.309 
• R-Value Work: 0.261 

Literature

Nucleotide-dependent conformational changes in a protease-associated ATPase HsIU.

Wang, J., Song, J.J., Seong, I.S., Franklin, M.C., Kamtekar, S., Eom, S.H., Chung, C.H.

(2001) Structure 9: 1107-1116

• PubMed: 11709174 
• DOI: https://doi.org/10.1016/s0969-2126(01)00670-0
• Primary Citation of Related Structures:  
  1HQY, 1HT1, 1HT2


• PubMed Abstract: 
  

  The bacterial heat shock locus ATPase HslU is an AAA(+) protein that has structures known in many nucleotide-free and -bound states. Nucleotide is required for the formation of the biologically active HslU hexameric assembly. The hexameric HslU ATPase binds the dodecameric HslV peptidase and forms an ATP-dependent HslVU protease.

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Organizational Affiliation: 

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

Biological Assembly 1  

Global Symmetry: Dihedral - D6  (Explore in 3D)
Global Stoichiometry: Hetero 24-mer - A12B12 

Biological assembly 1 assigned by authors.

Biological Assembly 2  

Global Symmetry: Dihedral - D6  (Explore in 3D)
Global Stoichiometry: Homo 12-mer - A12 

Biological assembly 2 assigned by authors.

Macromolecule Content

• Total Structure Weight: 355.58 kDa 
• Atom Count: 23,636 
• Modelled Residue Count: 3,024 
• Deposited Residue Count: 3,196 
• Unique protein chains: 2

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
HEAT SHOCK LOCUS HSLV	A [auth C], B [auth D], C [auth V], D [auth X], E [auth A], F [auth B], G [auth Z], H [auth Y]	175	Escherichia coli BL21(DE3)	Mutation(s): 0
UniProt
Find proteins for P0A7B8 (Escherichia coli (strain K12)) Explore P0A7B8  Go to UniProtKB:  P0A7B8

Entity ID: 2
Molecule	Chains	Sequence Length	Organism	Details	Image
HEAT SHOCK LOCUS HSLU	I [auth E], J [auth F], K [auth G], L [auth I]	449	Escherichia coli BL21(DE3)	Mutation(s): 0
UniProt
Find proteins for P0A6H5 (Escherichia coli (strain K12)) Explore P0A6H5  Go to UniProtKB:  P0A6H5

Small Molecules

Ligands 1 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram
ADP	M [auth E], N [auth F], O [auth G], P [auth I]	ADENOSINE-5'-DIPHOSPHATE C10 H15 N5 O10 P2 XTWYTFMLZFPYCI-KQYNXXCUSA-N

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 2.80 Å
• R-Value Free: 0.309 
• R-Value Work: 0.261 
• Space Group: P 3 2 1

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 172.022	α = 90
b = 172.022	β = 90
c = 276.569	γ = 120

Software Package:

Software Name	Purpose
CNS	refinement

Structure Validation

Entry History 

Deposition Data

• Released Date: 2001-11-14 
Deposition Author(s): Wang, J., Song, J.J., Seong, I.S., Franklin, M.C., Kamtekar, S., Eom, S.H., Chung, C.H.

Revision History  

• Version 1.0: 2001-11-14
  Type: Initial release
  
• Version 1.1: 2008-04-27
  Changes: Version format compliance
• Version 1.2: 2011-07-13
  Changes: Source and taxonomy, Version format compliance
• Version 1.3: 2013-09-25
  Changes: Derived calculations
• Version 1.4: 2016-08-10
  Changes: Derived calculations
• Version 1.5: 2024-02-07
  Changes: Data collection, Database references, Derived calculations