1PCP

SOLUTION STRUCTURE OF A TREFOIL-MOTIF-CONTAINING CELL GROWTH FACTOR, PORCINE SPASMOLYTIC PROTEIN


Experimental Data Snapshot

  • Method: SOLUTION NMR
  • Conformers Submitted: 19 

wwPDB Validation 3D Report Full Report


This is version 1.3 of the entry. See complete history

Literature

Solution structure of a trefoil-motif-containing cell growth factor, porcine spasmolytic protein.

Carr, M.D.Bauer, C.J.Gradwell, M.J.Feeney, J.

(1994) Proc.Natl.Acad.Sci.USA 91: 2206-2210


  • PubMed Abstract: 
  • The porcine spasmolytic protein (pSP) is a 106-residue cell growth factor that typifies a family of eukaryotic proteins that contain at least one copy of an approximately 40-amino acid protein domain known as the trefoil motif. In fact, pSP contains ...

    The porcine spasmolytic protein (pSP) is a 106-residue cell growth factor that typifies a family of eukaryotic proteins that contain at least one copy of an approximately 40-amino acid protein domain known as the trefoil motif. In fact, pSP contains two highly homologous trefoil domains. We have determined the complete three-dimensional solution structure of pSP by using a combination of two- and three-dimensional 1H NMR spectroscopy and distance geometry calculations. pSP is a relatively elongated molecule, consisting of two compact globular domains joined via a small interface. The protein's two trefoil domains adopt the same tertiary structure and contain a core C-terminal two-stranded antiparallel beta-sheet, preceded by a 6-residue helix that packs against the N-terminal beta-strand. The remainder of the protein backbone is taken up by two short loops that lie on either side of the beta-hairpin and are linked by an extended region that wraps around the C-terminal beta-strand. The topology of the protein backbone observed for the trefoil domains in pSP represents an unusual polypeptide fold. A striking feature of both trefoil domains is a surface patch formed from five conserved residues that have no obvious structural role. The two patches are located at the far ends of the protein molecule, and we propose that these residues form at least part of the receptor binding site, or sites, on pSP.


    Related Citations: 
    • 1H NMR-Based Determination of the Secondary Structure of Porcine Pancreatic Spasmolytic Polypeptide: One of a New Family of "Trefoil" Motif Containing Cell Growth Factors
      Carr, M.D.
      (1992) Biochemistry 31: 1998


    Organizational Affiliation

    Laboratory of Molecular Structure, National Institute for Medical Research, London, England.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
PORCINE SPASMOLYTIC PROTEIN
A
106Sus scrofaGene Names: TFF2 (SML1)
Find proteins for P01359 (Sus scrofa)
Go to Gene View: TFF2
Go to UniProtKB:  P01359
Experimental Data & Validation

Experimental Data

  • Method: SOLUTION NMR
  • Conformers Submitted: 19 
  • Olderado: 1PCP Olderado

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 1994-05-31
    Type: Initial release
  • Version 1.1: 2008-03-24
    Type: Version format compliance
  • Version 1.2: 2011-07-13
    Type: Version format compliance
  • Version 1.3: 2017-11-29
    Type: Derived calculations, Other