Solution NMR structure of lipoprotein spr from Escherichia coli K12. Northeast Structural Genomics target ER541-37-162

Experimental Data Snapshot

  • Method: SOLUTION NMR
  • Conformers Calculated: 100 
  • Conformers Submitted: 20 
  • Selection Criteria: structures with the lowest energy 

wwPDB Validation   3D Report Full Report

This is version 1.2 of the entry. See complete history


Solution NMR structure of the NlpC/P60 domain of lipoprotein Spr from Escherichia coli: structural evidence for a novel cysteine peptidase catalytic triad.

Aramini, J.M.Rossi, P.Huang, Y.J.Zhao, L.Jiang, M.Maglaqui, M.Xiao, R.Locke, J.Nair, R.Rost, B.Acton, T.B.Inouye, M.Montelione, G.T.

(2008) Biochemistry 47: 9715-9717

  • DOI: https://doi.org/10.1021/bi8010779
  • Primary Citation of Related Structures:  

  • PubMed Abstract: 

    Escherichia coli Spr is a membrane-anchored cell wall hydrolase. The solution NMR structure of the C-terminal NlpC/P60 domain of E. coli Spr described here reveals that the protein adopts a papain-like alpha+beta fold and identifies a substrate-binding cleft featuring several highly conserved residues. The active site features a novel Cys-His-His catalytic triad that appears to be a unique structural signature of this cysteine peptidase family. Moreover, the relative orientation of these catalytic residues is similar to that observed in the analogous Ser-His-His triad, a variant of the classic Ser-His-Asp charge relay system, suggesting the convergent evolution of a catalytic mechanism in quite distinct peptidase families.

  • Organizational Affiliation

    Center for Advanced Biotechnology and Medicine, Department of Molecular Biology and Biochemistry, Rutgers, The State University of New Jersey, Piscataway, New Jersey 08854, USA. jma@cabm.rutgers.edu

Find similar proteins by:  (by identity cutoff)  |  3D Structure
Entity ID: 1
MoleculeChains Sequence LengthOrganismDetailsImage
Lipoprotein spr135Escherichia coli K-12Mutation(s): 0 
Gene Names: spryeiVb2175JW2163
Find proteins for P0AFV4 (Escherichia coli (strain K12))
Explore P0AFV4 
Go to UniProtKB:  P0AFV4
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupP0AFV4
Sequence Annotations
  • Reference Sequence
Experimental Data & Validation

Experimental Data

  • Method: SOLUTION NMR
  • Conformers Calculated: 100 
  • Conformers Submitted: 20 
  • Selection Criteria: structures with the lowest energy 

Structure Validation

View Full Validation Report

Entry History 

Revision History  (Full details and data files)

  • Version 1.0: 2008-03-18
    Type: Initial release
  • Version 1.1: 2011-07-13
    Changes: Source and taxonomy, Version format compliance
  • Version 1.2: 2024-05-01
    Changes: Data collection, Database references