3ID2

Crystal Structure of RseP PDZ2 domain


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 3.089 Å
  • R-Value Free: 0.270 
  • R-Value Work: 0.205 

wwPDB Validation 3D Report Full Report


This is version 1.1 of the entry. See complete history

Literature

Cleavage of RseA by RseP requires a carboxyl-terminal hydrophobic amino acid following DegS cleavage

Li, X.Wang, B.Feng, L.Kang, H.Qi, Y.Wang, J.Shi, Y.

(2009) Proc.Natl.Acad.Sci.USA 106: 14837-14842

  • DOI: 10.1073/pnas.0903289106
  • Primary Citation of Related Structures:  

  • PubMed Abstract: 
  • Regulated intramembrane proteolysis (RIP) by the Site-2 protease (S2P) results in the release of a transmembrane signaling protein. Curiously, however, S2P cleavage must be preceded by the action of the Site-1 protease (S1P). To decipher the underlyi ...

    Regulated intramembrane proteolysis (RIP) by the Site-2 protease (S2P) results in the release of a transmembrane signaling protein. Curiously, however, S2P cleavage must be preceded by the action of the Site-1 protease (S1P). To decipher the underlying mechanism, we reconstituted sequential, in vitro cleavages of the Escherichia coli transmembrane protein RseA by DegS (S1P) and RseP (S2P). After DegS cleavage, the newly exposed carboxyl-terminal residue Val-148 of RseA plays an essential role for RseP cleavage, and its mutation to charged or dissimilar amino acids crippled the Site-2 cleavage. By contrast, the identity of residues 146 and 147 of RseA has no impact on Site-2 cleavage. These results explain why Site-1 cleavage must precede Site-2 cleavage. Structural analysis reveals that the putative peptide-binding groove in the second, but not the first, PDZ domain of RseP is poised for binding to a single hydrophobic amino acid. These observations suggest that after DegS cleavage, the newly exposed carboxyl terminus of RseA may facilitate Site-2 cleavage through direct interaction with the PDZ domain.


    Organizational Affiliation

    Ministry of Education Protein Science Laboratory and Center for Structural Biology, Department of Biological Sciences and Biotechnology, Tsinghua University, Beijing 100084, China.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
Regulator of sigma E protease
A, B
90Escherichia coli (strain K12)Mutation(s): 0 
Gene Names: rseP (ecfE, yaeL)
EC: 3.4.24.-
Find proteins for P0AEH1 (Escherichia coli (strain K12))
Go to UniProtKB:  P0AEH1
Small Molecules
Ligands 1 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
IOD
Query on IOD

Download SDF File 
Download CCD File 
A, B
IODIDE ION
I
XMBWDFGMSWQBCA-UHFFFAOYSA-M
 Ligand Interaction
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 3.089 Å
  • R-Value Free: 0.270 
  • R-Value Work: 0.205 
  • Space Group: P 41 21 2
Unit Cell:
Length (Å)Angle (°)
a = 108.961α = 90.00
b = 108.961β = 90.00
c = 58.335γ = 90.00
Software Package:
Software NamePurpose
HKL-2000data reduction
PHENIXrefinement
PHASERphasing
BSSdata collection
SCALEPACKdata scaling

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2009-08-11
    Type: Initial release
  • Version 1.1: 2011-07-13
    Type: Version format compliance