1AWI

HUMAN PLATELET PROFILIN COMPLEXED WITH THE L-PRO10 PEPTIDE


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.20 Å
  • R-Value Free: 0.305 
  • R-Value Work: 0.204 
  • R-Value Observed: 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 Biol 4: 953-960

  • DOI: 10.1038/nsb1197-953
  • Primary Citation of Related Structures:  
    1AWI

  • 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 report t ...

    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 D Biol Crystallogr 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 Biol 4: 1047

    Organizational Affiliation

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



Macromolecules
Find similar proteins by:  (by identity cutoff)  |  Structure
Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
PROFILIN AB138Homo sapiensMutation(s): 0 
Gene Names: PFN1
Find proteins for P07737 (Homo sapiens)
Explore P07737 
Go to UniProtKB:  P07737
NIH Common Fund Data Resources
PHAROS:  P07737
Protein Feature View
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  • Reference Sequence
  • Find similar proteins by:  Sequence   |   Structure
Entity ID: 2
MoleculeChainsSequence LengthOrganismDetailsImage
L-PRO10 P10N/AMutation(s): 0 
Protein Feature View
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  • Reference Sequence
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.20 Å
  • R-Value Free: 0.305 
  • R-Value Work: 0.204 
  • R-Value Observed: 0.204 
  • Space Group: P 21 21 2
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 68.25α = 90
b = 97.64β = 90
c = 39.1γ = 90
Software Package:
Software NamePurpose
PHASESphasing
X-PLORrefinement
XDSdata reduction
XSCALEdata scaling
X-PLORphasing

Structure Validation

View Full Validation Report



Entry History 

Deposition Data

Revision History 

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