1IBA

GLUCOSE PERMEASE (DOMAIN IIB), NMR, 11 STRUCTURES


Experimental Data Snapshot

  • Method: SOLUTION NMR
  • Conformers Submitted: 11 

wwPDB Validation 3D Report Full Report


This is version 1.3 of the entry. See complete history

Literature

Solution structure of the IIB domain of the glucose transporter of Escherichia coli.

Eberstadt, M.Grdadolnik, S.G.Gemmecker, G.Kessler, H.Buhr, A.Erni, B.

(1996) Biochemistry 35: 11286-11292

  • DOI: 10.1021/bi960492l

  • PubMed Abstract: 
  • The structure of the IIBGlc domain of the Escherichia coli transporter for glucose was determined by multidimensional heteronuclear NMR. The glucose transporter (IICBGlc) belongs to the bacterial phosphotransferase system. It mediates uptake with con ...

    The structure of the IIBGlc domain of the Escherichia coli transporter for glucose was determined by multidimensional heteronuclear NMR. The glucose transporter (IICBGlc) belongs to the bacterial phosphotransferase system. It mediates uptake with concomittant phosphorylation of glucose. The N-terminal IICGlc domain spans the membrane, the C-terminal IIBGlc domain (residues 386-477) contains the phosphorylation site, Cys421. The structure of the subclonal IIB domain was determined based on 927 conformational constraints, including 744 NOE derived upper bounds, 43 constraints of ranges of dihedral angles based on measurements of vicinal coupling constants, and 70 upper and lower bound constraints associated with 35 hydrogen bonds. The distance geometry interpretation of the NMR data is based on the previously published sequence-specific 1H, 15N, and 13C resonance assignments [Golic Grdadolnik et al. (1994) Eur. J. Biochem. 219, 945-952]. The sequence of the secondary structure elements of IIB is alpha 1 beta 1 beta 2 alpha 2 beta 3 beta 4 alpha 3. The basic fold consists of a split alpha/beta-sandwich composed of an antiparallel sheet with strand order beta 1 beta 2 beta 4 beta 3 and three alpha-helices superimposed onto one side of the sheet. The hydrophobic helix alpha 1 is packed against helices alpha 2, alpha 3, and the beta-sheet. The phosphorylation site (Cys421) is at the end of beta 1 on the solvent-exposed face of the sheet surrounded by Asp419, Thr423 Arg424, Arg426, and Gln456 which are invariant in 15 homologous IIB domains from other PTS transporters.


    Related Citations: 
    • Cysteine Phosphorylation of the Glucose Transporter of Escherichia Coli
      Meins, M.,Jeno, P.,Muller, D.,Richter, W.J.,Rosenbusch, J.P.,Erni, B.
      (1993) J.Biol.Chem. 268: 11604
    • The Glucose Transporter of Escherichia Coli
      Buhr, A.,Flukiger, K.,Erni, B.
      (1994) J.Biol.Chem. 269: 23437
    • Glucose-Permease of the Bacterial Phosphotransferase System. Gene Cloning, Overproduction, and Amino Acid Sequence of Enzyme Iiglc
      Erni, B.,Zanolari, B.
      (1986) J.Biol.Chem. 261: 16398
    • The Glucose Transporter of Escherichia Coli. Assignment of the 1H, 13C and 15N Resonances and Identification of the Secondary Structure of the Soluble Iib Domain
      Golic Grdadolnik, S.,Eberstadt, M.,Gemmecker, G.,Kessler, H.,Buhr, A.,Erni, B.
      (1994) Eur.J.Biochem. 219: 945


    Organizational Affiliation

    Institut für Organische Chemie und Biochemie, Technische Universität München, Germany.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
GLUCOSE PERMEASE
A
101Escherichia coli (strain K12)Gene Names: ptsG (glcA, umg)
Find proteins for P69786 (Escherichia coli (strain K12))
Go to UniProtKB:  P69786
Experimental Data & Validation

Experimental Data

  • Method: SOLUTION NMR
  • Conformers Submitted: 11 
  • Olderado: 1IBA Olderado

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 1996-10-14
    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