1LEP

THREE-DIMENSIONAL STRUCTURE OF THE IMMUNODOMINANT HEAT-SHOCK PROTEIN CHAPERONIN-10 OF MYCOBACTERIUM LEPRAE

• PDB DOI:  https://doi.org/10.2210/pdb1LEP/pdb

• Classification: CHAPERONE
• Organism(s): Mycobacterium leprae
• Mutation(s): No 


• Deposited: 1995-12-13 Released: 1997-01-11 
• Deposition Author(s): Mande, S.C., Hol, W.G.J.

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Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 3.50 Å
• R-Value Free: 0.380 
• R-Value Work: 0.230 
• R-Value Observed: 0.230 

Literature

Structure of the heat shock protein chaperonin-10 of Mycobacterium leprae.

Mande, S.C., Mehra, V., Bloom, B.R., Hol, W.G.

(1996) Science 271: 203-207

• PubMed: 8539620 
• DOI: https://doi.org/10.1126/science.271.5246.203
• Primary Citation of Related Structures:  
  1LEP


• PubMed Abstract: 
  

  Members of the chaperonin-10 (cpn10) protein family, also called heat shock protein 10 and in Escherichia coli GroES, play an important role in ensuring the proper folding of many proteins. The crystal structure of the Mycobacterium leprae cpn10 (Ml-cpn10) oligomer has been elucidated at a resolution of 3.5 angstroms. The architecture of the Ml-cpn10 heptamer resembles a dome with an oculus in its roof. The inner surface of the dome is hydrophilic and highly charged. A flexible region, known to interact with cpn60, extends from the lower rim of the dome. With the structure of a cpn10 heptamer now revealed and the structure of the E. coli GroEL previously known, models of cpn10:cpn60 and GroEL:GroES complexes are proposed.

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Organizational Affiliation: 

Department of Biological Structure, University of Washington, Seattle 98195, USA.

Biological Assembly 1  

Global Symmetry: Cyclic - C7  (Explore in 3D)
Global Stoichiometry: Homo 7-mer - A7 

Biological assembly 1 assigned by authors.

Macromolecule Content

• Total Structure Weight: 74.78 kDa 
• Atom Count: 567 
• Modelled Residue Count: 567 
• Deposited Residue Count: 693 
• Unique protein chains: 1

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
CHAPERONIN-10	A, B, C, D, E, F, G	99	Mycobacterium leprae	Mutation(s): 0
UniProt
Find proteins for P24301 (Mycobacterium leprae (strain TN)) Explore P24301  Go to UniProtKB:  P24301

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 3.50 Å
• R-Value Free: 0.380 
• R-Value Work: 0.230 
• R-Value Observed: 0.230 
• Space Group: C 2 2 2₁

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 112.9	α = 90
b = 129	β = 90
c = 109.5	γ = 90

Software Package:

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

Structure Validation

Entry History 

Deposition Data

• Released Date: 1997-01-11 
Deposition Author(s): Mande, S.C., Hol, W.G.J.

Revision History  

• Version 1.0: 1997-01-11
  Type: Initial release
  
• Version 1.1: 2008-03-24
  Changes: Version format compliance
• Version 1.2: 2011-07-13
  Changes: Version format compliance