1NED

CRYSTAL STRUCTURE OF HSLV (CLPQ) AT 3.8 ANGSTROMS RESOLUTION


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 3.8 Å
  • R-Value Free: 0.315 
  • R-Value Work: 0.256 

wwPDB Validation 3D Report Full Report


This is version 1.2 of the entry. See complete history

Literature

Crystal structure of heat shock locus V (HslV) from Escherichia coli.

Bochtler, M.Ditzel, L.Groll, M.Huber, R.

(1997) Proc.Natl.Acad.Sci.USA 94: 6070-6074

  • Also Cited By: 1E94

  • PubMed Abstract: 
  • Heat shock locus V (HslV; also called ClpQ) is the proteolytic core of the ATP-dependent protease HslVU in Escherichia coli. It has sequence similarity with the beta-type subunits of the eukaryotic and archaebacterial proteasomes. Unlike these partic ...

    Heat shock locus V (HslV; also called ClpQ) is the proteolytic core of the ATP-dependent protease HslVU in Escherichia coli. It has sequence similarity with the beta-type subunits of the eukaryotic and archaebacterial proteasomes. Unlike these particles, which display 72-point symmetry, it is a dimer of hexamers with 62-point symmetry. The crystal structure of HslV at 3.8-A resolution, determined by isomorphous replacement and symmetry averaging, shows that in spite of the different symmetry of the particle, the fold and the contacts between subunits are conserved. A tripeptide aldehyde inhibitor, acetyl-Leu-Leu-norleucinal, binds to the N-terminal threonine residue of HslV, probably as a hemiacetal, relating HslV also functionally to the proteasomes of archaea and eukaryotes.


    Organizational Affiliation

    Max-Planck-Institut für Biochemie, Am Klopferspitz 18a, D-82152 Martinsried, Germany.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
HSLV
A, B, C
183Escherichia coli (strain K12)Gene Names: hslV (htpO, yiiC)
EC: 3.4.25.2
Find proteins for P0A7B8 (Escherichia coli (strain K12))
Go to UniProtKB:  P0A7B8
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 3.8 Å
  • R-Value Free: 0.315 
  • R-Value Work: 0.256 
  • Space Group: P 42 21 2
Unit Cell:
Length (Å)Angle (°)
a = 108.400α = 90.00
b = 108.400β = 90.00
c = 103.200γ = 90.00
Software Package:
Software NamePurpose
ROTAVATA)data scaling
MOSFLMdata reduction
CCP4phasing
FRODOmodel building
CCP4data scaling
CCP4model building
X-PLORrefinement

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 1998-04-08
    Type: Initial release
  • Version 1.1: 2008-03-24
    Type: Version format compliance
  • Version 1.2: 2011-07-13
    Type: Version format compliance