1DIP

THE SOLUTION STRUCTURE OF PORCINE DELTA-SLEEP-INDUCING PEPTIDE IMMUNOREACTIVE PEPTIDE, NMR, 10 STRUCTURES


Experimental Data Snapshot

  • Method: SOLUTION NMR
  • Conformers Calculated: 50 
  • Conformers Submitted: 10 
  • Selection Criteria: ENERGY, AGREEMENT WITH EXPERIMENTAL DATA 

wwPDB Validation 3D Report Full Report


This is version 1.2 of the entry. See complete history

Literature

Solution structure of porcine delta sleep-inducing peptide immunoreactive peptide A homolog of the shortsighted gene product.

Seidel, G.Adermann, K.Schindler, T.Ejchart, A.Jaenicke, R.Forssmann, W.G.Rosch, P.

(1997) J.Biol.Chem. 272: 30918-30927


  • PubMed Abstract: 
  • The 77-residue delta sleep-inducing peptide immunoreactive peptide (DIP) is a close homolog of the Drosophila melanogaster shortsighted gene product. Porcine DIP (pDIP) and a peptide containing a leucine zipper-related partial sequence of pDIP, pDIP( ...

    The 77-residue delta sleep-inducing peptide immunoreactive peptide (DIP) is a close homolog of the Drosophila melanogaster shortsighted gene product. Porcine DIP (pDIP) and a peptide containing a leucine zipper-related partial sequence of pDIP, pDIP(9-46), was synthesized and studied by circular dichroism and nuclear magnetic resonance spectroscopy in combination with molecular dynamics calculations. Ultracentrifugation, size exclusion chromatography, and model calculations indicated that pDIP forms a dimer. This was confirmed by the observation of concentration-dependent thermal folding-unfolding transitions. From CD spectroscopy and thermal folding-unfolding transitions of pDIP(9-46), it was concluded that the dimerization of pDIP is a result of interaction between helical structures localized in the leucine zipper motif. The three-dimensional structure of the protein was determined with a modified simulated annealing protocol using experimental data derived from nuclear magnetic resonance spectra and a modeling approach based on an established strategy for coiled coil structures. The left-handed super helical structure of the leucine zipper type sequence resulting from the modeling approach is in agreement with known leucine zipper structures. In addition to the hydrophobic interactions between the amino acids at the heptade positions a and d, the structure of pDIP is stabilized by the formation of interhelical i to i' + 5 salt bridges. This result was confirmed by the pH dependence of the thermal-folding transitions. In addition to the amphipatic helix of the leucine zipper, a second helix is formed in the NH2-terminal part of pDIP. This helix exhibits more 310-helix character and is less stable than the leucine zipper helix. For the COOH-terminal region of pDIP no elements of regular secondary structure were observed.


    Related Citations: 
    • A Novel 77-Residue Peptide from Porcine Brain Contains a Leucine-Zipper Motif and is Recognized by an Antiserum to Delta-Sleep-Inducing Peptide
      Sillard, R.,Schulz-Knappe, P.,Vogel, P.,Raida, M.,Bensch, K.W.,Forssmann, W.G.,Mutt, V.
      (1993) Eur.J.Biochem. 216: 429


    Organizational Affiliation

    Lehrstuhl für Biopolymere, Universität Bayreuth, Universitätsstrasse 30, D-95447 Bayreuth, Germany.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
DELTA-SLEEP-INDUCING PEPTIDE IMMUNOREACTIVE PEPTIDE
A, B
78Sus scrofaGene Names: TSC22D3 (DSIPI, GILZ)
Find proteins for P80220 (Sus scrofa)
Go to Gene View: TSC22D3
Go to UniProtKB:  P80220
Small Molecules
Modified Residues  1 Unique
IDChainsTypeFormula2D DiagramParent
ACE
Query on ACE
A, B
NON-POLYMERC2 H4 O

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Experimental Data & Validation

Experimental Data

  • Method: SOLUTION NMR
  • Conformers Calculated: 50 
  • Conformers Submitted: 10 
  • Selection Criteria: ENERGY, AGREEMENT WITH EXPERIMENTAL DATA 
  • Olderado: 1DIP Olderado
Software Package:
Software NamePurpose
X-PLORrefinement
X-PLORphasing
X-PLORmodel building

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 1997-10-15
    Type: Initial release
  • Version 1.1: 2008-03-24
    Type: Version format compliance
  • Version 1.2: 2011-07-13
    Type: Version format compliance