1PFI

PF1 VIRUS STRUCTURE: HELICAL COAT PROTEIN AND DNA WITH PARAXIAL PHOSPHATES


Experimental Data Snapshot

  • Method: FIBER DIFFRACTION
  • Resolution: 3 Å

wwPDB Validation

Currently 1PFI does not have a wwPDB validation report.


This is version 1.3 of the entry. See complete history

Literature

Pf1 virus structure: helical coat protein and DNA with paraxial phosphates.

Liu, D.J.Day, L.A.

(1994) Science 265: 671-674


  • PubMed Abstract: 
  • The helical path of the DNA in filamentous bacteriophage Pf1 was deduced from different kinds of existing structural information, including results from x-ray fiber diffraction. The DNA has the same pitch, 16 angstroms, as the surrounding helix of pr ...

    The helical path of the DNA in filamentous bacteriophage Pf1 was deduced from different kinds of existing structural information, including results from x-ray fiber diffraction. The DNA has the same pitch, 16 angstroms, as the surrounding helix of protein subunits; the rise and rotation per nucleotides are 6.1 angstroms and 132 degrees, respectively; and the phosphates are 2.5 angstroms from the axis. The DNA in Pf1 is, therefore, the most extended and twisted DNA structure known. On the basis of the DNA structure and extensive additional information about the protein, a model of the virion is proposed. In the model, the DNA bases reach out, into the protein, and the lysine and arginine side chains reach in, between the DNA bases, to stabilize the paraxial phosphate charges; the conformation of the protein subunit is a combination of alpha and 3(10) helices.


    Organizational Affiliation

    Public Health Research Institute, New York, NY 10016.




Macromolecules

Find similar proteins by: Sequence  |  Structure


Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
MAJOR COAT PROTEIN OF PF1 VIRUS
A, B
46Pseudomonas phage Pf1Gene Names: VIII
Find proteins for P03621 (Pseudomonas phage Pf1)
Go to UniProtKB:  P03621
Entity ID: 2
MoleculeChainsLengthOrganism
DNA (5'-D(P*C)-3')C,D1Pseudomonas phage Pf1
Experimental Data & Validation

Experimental Data

  • Method: FIBER DIFFRACTION
  • Resolution: 3 Å

Structure Validation

Currently 1PFI does not have a wwPDB validation report.



Entry History 

Deposition Data

  • Deposited Date: 1994-04-06 
  • Released Date: 1995-01-26 
  • Deposition Author(s): Liu, D.J., Day, L.A.

Revision History 

  • Version 1.0: 1995-01-26
    Type: Initial release
  • Version 1.1: 2008-03-21
    Type: Version format compliance
  • Version 1.2: 2011-07-13
    Type: Version format compliance
  • Version 1.3: 2013-03-27
    Type: Other