1CPN

NATIVE-LIKE IN VIVO FOLDING OF A CIRCULARLY PERMUTED JELLYROLL PROTEIN SHOWN BY CRYSTAL STRUCTURE ANALYSIS


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.8 Å
  • R-Value Work: 0.164 

wwPDB Validation 3D Report Full Report


This is version 1.3 of the entry. See complete history

Literature

Native-like in vivo folding of a circularly permuted jellyroll protein shown by crystal structure analysis.

Hahn, M.Piotukh, K.Borriss, R.Heinemann, U.

(1994) Proc.Natl.Acad.Sci.USA 91: 10417-10421

  • Primary Citation of Related Structures:  1CPM

  • PubMed Abstract: 
  • A jellyroll beta-sandwich protein, the Bacillus beta-glucanase H(A16-M), is used to probe the role of N-terminal peptide regions in protein folding in vivo. A gene encoding H(A16-M) is rearranged to place residues 1-58 of the protein behind a signal ...

    A jellyroll beta-sandwich protein, the Bacillus beta-glucanase H(A16-M), is used to probe the role of N-terminal peptide regions in protein folding in vivo. A gene encoding H(A16-M) is rearranged to place residues 1-58 of the protein behind a signal peptide and residues 59-214. The rearranged gene is expressed in Escherichia coli. The resultant circularly permuted protein, cpA16M-59, is secreted into the periplasm, correctly processed, and folded into a stable and active enzyme. Crystal structure analysis at 2.0-A resolution, R = 15.3%, shows cpA16M-59 to have a three-dimensional structure nearly identical with that of the parent beta-glucanase. An analogous experiment based on the wild-type Bacillus macerans beta-glucanase, giving rise to the circularly permuted variant cpMAC-57, yields the same results. Folding of these proteins, therefore, is not a vectorial process depending on the conformation adopted by their native N-terminal oligopeptides after ribosomal synthesis and translocation through the cytoplasmic membrane.


    Related Citations: 
    • Molecular and Active-Site Structure of a Bacillus 1,3-1,4-Beta-Glucanase
      Keitel, T.,Simon, O.,Borriss, R.,Heinemann, U.
      (1993) Proc.Natl.Acad.Sci.USA 90: 5287


    Organizational Affiliation

    Max-Delbrück-Centrum für Molekulare Medizin, Berlin, Germany.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
CIRCULARLY PERMUTED
A
208Paenibacillus maceransEC: 3.2.1.73
Find proteins for P23904 (Paenibacillus macerans)
Go to UniProtKB:  P23904
Small Molecules
Ligands 1 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
CA
Query on CA

Download SDF File 
Download CCD File 
A
CALCIUM ION
Ca
BHPQYMZQTOCNFJ-UHFFFAOYSA-N
 Ligand Interaction
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.8 Å
  • R-Value Work: 0.164 
  • Space Group: P 1 21 1
Unit Cell:
Length (Å)Angle (°)
a = 65.470α = 90.00
b = 41.560β = 111.46
c = 39.570γ = 90.00
Software Package:
Software NamePurpose
X-PLORmodel building
TNTrefinement
X-PLORrefinement
X-PLORphasing

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 1994-06-22
    Type: Initial release
  • Version 1.1: 2008-03-24
    Type: Version format compliance
  • Version 1.2: 2011-07-13
    Type: Version format compliance
  • Version 1.3: 2017-11-29
    Type: Derived calculations, Other