2PII

PII, GLNB PRODUCT


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.9 Å
  • R-Value Work: 0.132 

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This is version 1.3 of the entry. See complete history

Literature

X-ray structure of the signal transduction protein from Escherichia coli at 1.9 A.

Carr, P.D.Cheah, E.Suffolk, P.M.Vasudevan, S.G.Dixon, N.E.Ollis, D.L.

(1996) Acta Crystallogr.,Sect.D 52: 93-104

  • DOI: 10.1107/S0907444995007293

  • PubMed Abstract: 
  • The structure of the bacterial signal transduction protein P(II) has been refined to an R factor of 13.2% using 3sigma data between 10 and 1.9 A. The crystals exhibited twinning by merohedry and X-ray intensities were corrected using the method of Fi ...

    The structure of the bacterial signal transduction protein P(II) has been refined to an R factor of 13.2% using 3sigma data between 10 and 1.9 A. The crystals exhibited twinning by merohedry and X-ray intensities were corrected using the method of Fisher & Sweet [Fisher & Sweet (1980). Acta Cryst. A36, 755-760] prior to refinement. Our earlier 2.7 A structure [Cheah, Carr, Suffolk, Vasudevan, Dixon & Ollis (1994). Structure, 2, 981-990] served as a starting model. P(II) is a trimeric molecule, each subunit has a mass of 12.4 kDa and contains 112 amino-acid residues. The refined model includes all 1065 protein atoms per subunit plus 312 water molecules. The high-resolution refinement confirms the correctness of our 2.7 A model, although it leads to a redefinition of the extent of various secondary-structural elements. The monomeric structure of P(II) exhibits an interlocking double betaalphabeta fold. This is a stable fold found in a number of proteins with diverse functions. The association of the protein into a trimer leads to a new structure which we describe in detail. The effects of crystal packing forces are discussed and potential interaction sites with other proteins and effector molecules are identified.


    Related Citations: 
    • Escherichia Coli Pii Protein: Purification, Crystallization and Oligomeric Structure
      Vasudevan, S.G.,Gedye, C.,Dixon, N.E.,Cheah, E.,Carr, P.D.,Suffolk, P.M.,Jeffrey, P.D.,Ollis, D.L.
      (1994) FEBS Lett. 337: 255
    • Structure of the Escherichia Coli Signal Transducing Protein Pii
      Cheah, E.,Carr, P.D.,Suffolk, P.M.,Vasudevan, S.G.,Dixon, N.E.,Ollis, D.L.
      (1994) Structure 2: 981


    Organizational Affiliation

    Centre for Molecular Structure and Function, Research School of Chemistry, Australian National University, Canberra, ACT.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
PII
A
112Escherichia coli (strain K12)Gene Names: glnB
Find proteins for P0A9Z1 (Escherichia coli (strain K12))
Go to UniProtKB:  P0A9Z1
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.9 Å
  • R-Value Work: 0.132 
  • Space Group: P 63
Unit Cell:
Length (Å)Angle (°)
a = 61.600α = 90.00
b = 61.600β = 90.00
c = 56.300γ = 120.00
Software Package:
Software NamePurpose
X-PLORmodel building
X-PLORphasing
X-PLORrefinement

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 1996-06-20
    Type: Initial release
  • Version 1.1: 2008-03-24
    Type: Version format compliance
  • Version 1.2: 2011-07-13
    Type: Derived calculations, Version format compliance
  • Version 1.3: 2011-11-16
    Type: Atomic model