1E2B

NMR STRUCTURE OF THE C10S MUTANT OF ENZYME IIB CELLOBIOSE OF THE PHOSPHOENOL-PYRUVATE DEPENDENT PHOSPHOTRANSFERASE SYSTEM OF ESCHERICHIA COLI, 17 STRUCTURES


Experimental Data Snapshot

  • Method: SOLUTION NMR
  • Conformers Calculated: 32 
  • Conformers Submitted: 17 
  • Selection Criteria: TARGET FUNCTION, NUMBER OF VIOLATIONS 

wwPDB Validation 3D Report Full Report


This is version 1.2 of the entry. See complete history

Literature

The NMR side-chain assignments and solution structure of enzyme IIBcellobiose of the phosphoenolpyruvate-dependent phosphotransferase system of Escherichia coli.

Ab, E.Schuurman-Wolters, G.Reizer, J.Saier, M.H.Dijkstra, K.Scheek, R.M.Robillard, G.T.

(1997) Protein Sci. 6: 304-314

  • DOI: 10.1002/pro.5560060205
  • Also Cited By: 1H9C

  • PubMed Abstract: 
  • The assignment of the side-chain NMR resonances and the determination of the three-dimensional solution structure of the C10S mutant of enzyme IIBcellobiose (IIBcel) of the phosphoenolpyruvate-dependent phosphotransferase system of Escherichia coli a ...

    The assignment of the side-chain NMR resonances and the determination of the three-dimensional solution structure of the C10S mutant of enzyme IIBcellobiose (IIBcel) of the phosphoenolpyruvate-dependent phosphotransferase system of Escherichia coli are presented. The side-chain resonances were assigned nearly completely using a variety of mostly heteronuclear NMR experiments, including HCCH-TOCSY, HCCH-COSY, and COCCH-TOCSY experiments as well as CBCACOHA, CBCA(CO)NH, and HBHA(CBCA)(CO)NH experiments. In order to obtain the three-dimensional structure, NOE data were collected from 15N-NOESY-HSQC, 13C-HSQC-NOESY, and 2D NOE experiments. The distance restraints derived from these NOE data were used in distance geometry calculations followed by molecular dynamics and simulated annealing protocols. In an iterative procedure, additional NOE assignments were derived from the calculated structures and new structures were calculated. The final set of structures, calculated with approximately 2000 unambiguous and ambiguous distance restraints, has an rms deviation of 1.1 A on C alpha atoms. IIBcel consists of a four stranded parallel beta-sheet, in the order 2134. The sheet is flanked with two and three alpha-helices on either side. Residue 10, a cysteine in the wild-type enzyme, which is phosphorylated during the catalytic cycle, is located at the end of the first beta-strand. A loop that is proposed to be involved in the binding of the phosphoryl-group follows the cysteine. The loop appears to be disordered in the unphosphorylated state.


    Related Citations: 
    • Characterization and Nucleotide Sequence of the Cryptic Cel Operon of Escherichia Coli K12
      Parker, L.L.,Hall, B.G.
      (1990) Genetics 124: 455
    • Enzyme Iibcellobiose of the Phosphoenol-Pyruvate-Dependent Phosphotransferase System of Escherichia Coli: Backbone Assignment and Secondary Structure Determined by Three-Dimensional NMR Spectroscopy
      Ab, E.,Schuurman-Wolters, G.K.,Saier, M.H.,Reizer, J.,Jacuinod, M.,Roepstorff, P.,Dijkstra, K.,Scheek, R.M.,Robillard, G.T.
      (1994) Protein Sci. 3: 282
    • The Cellobiose Permease of Escherichia Coli Consists of Three Proteins and is Homologous to the Lactose Permease of Staphylococcus Aureus
      Reizer, J.,Reizer, A.,Saier Junior, M.H.
      (1990) Res.Microbiol. 141: 1061


    Organizational Affiliation

    Groningen Biomolecular Sciences and Biotechnology Institute, University of Groningen, The Netherlands.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
ENZYME IIB-CELLOBIOSE
A
106Escherichia coli (strain K12)Gene Names: chbB (celA)
EC: 2.7.1.194, 2.7.1.191, 2.7.1.192, 2.7.1.195, 2.7.1.193
Find proteins for P69795 (Escherichia coli (strain K12))
Go to UniProtKB:  P69795
Experimental Data & Validation

Experimental Data

  • Method: SOLUTION NMR
  • Conformers Calculated: 32 
  • Conformers Submitted: 17 
  • Selection Criteria: TARGET FUNCTION, NUMBER OF VIOLATIONS 
  • Olderado: 1E2B Olderado

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 1997-07-23
    Type: Initial release
  • Version 1.1: 2008-03-24
    Type: Version format compliance
  • Version 1.2: 2011-07-13
    Type: Source and taxonomy, Version format compliance