1CJF

PROFILIN BINDS PROLINE-RICH LIGANDS IN TWO DISTINCT AMIDE BACKBONE ORIENTATIONS


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.30 Å
  • R-Value Free: 
    0.293 (Depositor), 0.260 (DCC) 
  • R-Value Work: 
    0.195 (Depositor), 0.180 (DCC) 

Starting Model: experimental
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wwPDB Validation   3D Report Full Report


Ligand Structure Quality Assessment 

Created with Raphaël 2.3.0Worse 01 BetterLigand structure goodness of fit to experimental dataBest fitted HOMClick on this verticalbar to view details

This is version 1.3 of the entry. See complete history


Literature

Profilin binds proline-rich ligands in two distinct amide backbone orientations.

Mahoney, N.M.Rozwarski, D.A.Fedorov, E.Fedorov, A.A.Almo, S.C.

(1999) Nat Struct Biol 6: 666-671

  • DOI: https://doi.org/10.1038/10722
  • Primary Citation of Related Structures:  
    1CF0, 1CJF

  • PubMed Abstract: 

    The actin regulatory protein profilin is targeted to specific cellular regions through interactions with highly proline-rich motifs embedded within its binding partners. New X-ray crystallographic results demonstrate that profilin, like SH3 domains, can bind proline-rich ligands in two distinct amide backbone orientations. By further analogy with SH3 domains, these data suggest that non-proline residues in profilin ligands may dictate the polarity and register of binding, and the detailed organization of the assemblies involving profilin. This degeneracy may be a general feature of modules that bind proline-rich ligands, including WW and EVH1 domains, and has implications for the assembly and activity of macromolecular complexes involved in signaling and the regulation of the actin cytoskeleton.


  • Organizational Affiliation

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


Macromolecules
Find similar proteins by:  (by identity cutoff)  |  3D Structure
Entity ID: 1
MoleculeChains Sequence LengthOrganismDetailsImage
PROTEIN (HUMAN PLATELET PROFILIN)A,
C [auth B]
139Homo sapiensMutation(s): 0 
UniProt & NIH Common Fund Data Resources
Find proteins for P07737 (Homo sapiens)
Explore P07737 
Go to UniProtKB:  P07737
PHAROS:  P07737
GTEx:  ENSG00000108518 
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupP07737
Sequence Annotations
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  • Reference Sequence

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Entity ID: 2
MoleculeChains Sequence LengthOrganismDetailsImage
PROTEIN (PROLINE PEPTIDE)B [auth C],
D
15N/AMutation(s): 0 
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
Sequence Annotations
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  • Reference Sequence
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.30 Å
  • R-Value Free:  0.293 (Depositor), 0.260 (DCC) 
  • R-Value Work:  0.195 (Depositor), 0.180 (DCC) 
Space Group: C 1 2 1
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 105.4α = 90
b = 51.8β = 131.1
c = 77.5γ = 90
Software Package:
Software NamePurpose
X-PLORmodel building
X-PLORrefinement
XDSdata reduction
XSCALEdata scaling
X-PLORphasing

Structure Validation

View Full Validation Report



Ligand Structure Quality Assessment 

Created with Raphaël 2.3.0Worse 01 BetterLigand structure goodness of fit to experimental dataBest fitted HOMClick on this verticalbar to view details

Entry History 

Deposition Data

Revision History  (Full details and data files)

  • Version 1.0: 1999-07-07
    Type: Initial release
  • Version 1.1: 2008-04-26
    Changes: Version format compliance
  • Version 1.2: 2011-07-13
    Changes: Version format compliance
  • Version 1.3: 2023-08-09
    Changes: Data collection, Database references, Derived calculations, Refinement description