1AWI

HUMAN PLATELET PROFILIN COMPLEXED WITH THE L-PRO10 PEPTIDE


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.2 Å
  • R-Value Free: 0.305 
  • R-Value Work: 0.204 

wwPDB Validation 3D Report Full Report


This is version 1.2 of the entry. See complete history

Literature

Structure of the profilin-poly-L-proline complex involved in morphogenesis and cytoskeletal regulation.

Mahoney, N.M.Janmey, P.A.Almo, S.C.

(1997) Nat.Struct.Mol.Biol. 4: 953-960


  • PubMed Abstract: 
  • Profilin, a ubiquitous low molecular weight (13,000-15,000 M(r)) actin binding protein, regulates the formation of F-actin structures in vivo, and is localized to specific cellular regions through interaction with proline-rich sequences. Here we repo ...

    Profilin, a ubiquitous low molecular weight (13,000-15,000 M(r)) actin binding protein, regulates the formation of F-actin structures in vivo, and is localized to specific cellular regions through interaction with proline-rich sequences. Here we report the 2.2 A X-ray structure of the complex between human platelet profilin (HPP) and a decamer of L-proline (L-Pro10). The L-Pro10 peptide adopts a left-handed type II poly-L-proline helix (PPII) and binds to a highly conserved patch of aromatic amino acids on the surface of profilin. The peptide and actin binding sites reside on orthogonal surfaces, and L-Pro10 binding does not result in a conformational rearrangement of HPP. This structure suggests a mechanism for the localization of profilin and its actin-related activities to sites of actin filament assembly in vivo.


    Related Citations: 
    • Crystallization and Preliminary X-Ray Analysis of Human Platelet Profilin Complexed with an Oligo Proline Peptide
      Mahoney, N.M.,Almo, S.C.
      (1998) Acta Crystallogr.,Sect.D 54: 108
    • Erratum. Structure of the Profilin-Poly-L-Proline Complex Involved in Morphogenesis and Cytoskeletal Regulation
      Mahoney, N.M.,Janmey, P.A.,Almo, S.C.
      (1997) Nat.Struct.Mol.Biol. 4: 1047


    Organizational Affiliation

    Department of Biochemistry, Albert Einstein College of Medicine, Bronx, New York 10461, USA.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
PROFILIN
A, B
138Homo sapiensMutation(s): 0 
Gene Names: PFN1
Find proteins for P07737 (Homo sapiens)
Go to Gene View: PFN1
Go to UniProtKB:  P07737
Entity ID: 2
MoleculeChainsSequence LengthOrganismDetails
L-PRO10
P
10N/AMutation(s): 0 
Protein Feature View is not available: No corresponding UniProt sequence found.
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.2 Å
  • R-Value Free: 0.305 
  • R-Value Work: 0.204 
  • Space Group: P 21 21 2
Unit Cell:
Length (Å)Angle (°)
a = 68.250α = 90.00
b = 97.640β = 90.00
c = 39.100γ = 90.00
Software Package:
Software NamePurpose
XDSdata reduction
XSCALEdata scaling
X-PLORrefinement
X-PLORphasing
PHASESphasing

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 1998-10-28
    Type: Initial release
  • Version 1.1: 2008-03-24
    Type: Version format compliance
  • Version 1.2: 2011-07-13
    Type: Version format compliance