3ID3

Crystal Structure of RseP PDZ2 I304A domain


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.01 Å
  • R-Value Free: 0.222 
  • R-Value Work: 0.197 
  • R-Value Observed: 0.198 

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 U S A 106: 14837-14842

  • DOI: 10.1073/pnas.0903289106
  • Primary Citation of Related Structures:  
    3ID1, 3ID2, 3ID3, 3ID4

  • 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 underlying mechanism, we reconstituted sequential, in vitro cleavages of the Escherichia coli transmembrane protein RseA by DegS (S1P) and RseP (S2P) ...

    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:  (by identity cutoff)  |  Structure
Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
Regulator of sigma E proteaseA, B89Escherichia coli K-12Mutation(s): 1 
Gene Names: rsePecfEyaeLb0176JW0171
EC: 3.4.24
Find proteins for P0AEH1 (Escherichia coli (strain K12))
Explore P0AEH1 
Go to UniProtKB:  P0AEH1
Protein Feature View
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  • Reference Sequence
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.01 Å
  • R-Value Free: 0.222 
  • R-Value Work: 0.197 
  • R-Value Observed: 0.198 
  • Space Group: P 1 21 1
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 47.411α = 90
b = 38.147β = 102.84
c = 51.265γ = 90
Software Package:
Software NamePurpose
PROTEUM PLUSdata collection
PHASERphasing
PHENIXrefinement
SAINTdata reduction
PROTEUM PLUSdata scaling

Structure Validation

View Full Validation Report



Entry History 

Deposition Data

Revision History 

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