1B1V

NMR STRUCTURE OF PSP1, PLASMATOCYTE-SPREADING PEPTIDE FROM PSEUDOPLUSIA INCLUDENS


Experimental Data Snapshot

  • Method: SOLUTION NMR
  • Conformers Calculated: 60 
  • Conformers Submitted: 30 
  • Selection Criteria: LOWEST TARGET FUNCTION 

wwPDB Validation 3D Report Full Report


This is version 1.2 of the entry. See complete history

Literature

Structure of the insect cytokine peptide plasmatocyte-spreading peptide 1 from Pseudoplusia includens.

Volkman, B.F.Anderson, M.E.Clark, K.D.Hayakawa, Y.Strand, M.R.Markley, J.L.

(1999) J.Biol.Chem. 274: 4493-4496

  • Primary Citation of Related Structures:  

  • PubMed Abstract: 
  • The structure of the recently identified plasmatocyte spreading peptide from the moth Pseudoplusia includens (PSP1) has been determined by NMR spectroscopy. This novel insect cytokine consists of 23 amino acid residues and a single disulfide bond. To ...

    The structure of the recently identified plasmatocyte spreading peptide from the moth Pseudoplusia includens (PSP1) has been determined by NMR spectroscopy. This novel insect cytokine consists of 23 amino acid residues and a single disulfide bond. Torsion angle dynamics calculations utilizing a total of 337 distance constraints yielded an ensemble of 30 structures with an average backbone root mean square deviation for residues 7-22 of 0.18 A from the mean structure. The structure consists of a disordered N-terminal region and a well defined core that is stabilized by numerous hydrophobic interactions and a short beta-hairpin. Structural comparisons confirm that PSP1 adopts an epidermal growth factor (EGF)-like fold with close similarity to the C-terminal subdomain of EGF-like module 5 of human thrombomodulin. The combination of the three-dimensional structure of PSP1 and the extensive literature on EGF-receptor interactions should accelerate the process of identifying the specific residues responsible for receptor binding activity of this family of immunoregulatory peptides.


    Organizational Affiliation

    National Magnetic Resonance Facility at Madison, Department of Biochemistry, University of Wisconsin-Madison, Madison, Wisconsin 53706-1544, USA. volkman@nmrfam.wisc.edu




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
PROTEIN (PLASMATOCYTE-SPREADING PEPTIDE)
A
23Chrysodeixis includensMutation(s): 0 
Gene Names: PSP1
Find proteins for O61704 (Chrysodeixis includens)
Go to UniProtKB:  O61704
Experimental Data & Validation

Experimental Data

  • Method: SOLUTION NMR
  • Conformers Calculated: 60 
  • Conformers Submitted: 30 
  • Selection Criteria: LOWEST TARGET FUNCTION 
  • Olderado: 1B1V Olderado

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 1998-12-02
    Type: Initial release
  • Version 1.1: 2008-04-26
    Type: Version format compliance
  • Version 1.2: 2011-07-13
    Type: Version format compliance