1KFP

Solution structure of the antimicrobial 18-residue gomesin


Experimental Data Snapshot

  • Method: SOLUTION NMR
  • Conformers Calculated: 200 
  • Conformers Submitted: 20 
  • Selection Criteria: structures with acceptable covalent geometry,structures with favorable non-bond energy,structures with the least restraint violations,structures with the lowest energy 

wwPDB Validation   3D Report Full Report


This is version 2.0 of the entry. See complete history


Literature

The solution structure of gomesin, an antimicrobial cysteine-rich peptide from the spider.

Mandard, N.Bulet, P.Caille, A.Daffre, S.Vovelle, F.

(2002) Eur J Biochem 269: 1190-1198

  • DOI: 10.1046/j.0014-2956.2002.02760.x
  • Primary Citation of Related Structures:  
    1KFP

  • PubMed Abstract: 
  • Gomesin is the first peptide isolated from spider exhibiting antimicrobial activities. This highly cationic peptide is composed of 18 amino-acid residues including four cysteines forming two disulfide linkages. The solution structure of gomesin has been determined using proton two-dimensional NMR (2D-NMR) and restrained molecular dynamics calculations ...

    Gomesin is the first peptide isolated from spider exhibiting antimicrobial activities. This highly cationic peptide is composed of 18 amino-acid residues including four cysteines forming two disulfide linkages. The solution structure of gomesin has been determined using proton two-dimensional NMR (2D-NMR) and restrained molecular dynamics calculations. The global fold of gomesin consists in a well-resolved two-stranded antiparallel betasheet connected by a noncanonical betaturn. A comparison between the structures of gomesin and protegrin-1 from porcine and androctonin from scorpion outlines several common features in the distribution of hydrophobic and hydrophilic residues. The N- and C-termini, the betaturn and one face of the betasheet are hydrophilic, but the hydrophobicity of the other face depends on the peptide. The similarities suggest that the molecules interact with membranes in an analogous manner. The importance of the intramolecular disulfide bridges in the biological activity of gomesin is being investigated.


    Related Citations: 
    • Isolation and characterization of gomesin, an 18-residue cysteine-rich defense peptide from the spider Acanthoscurria gomesiana hemocytes with sequence similarities to horseshoe crab antimicrobial peptides of the tachyplesin family
      Silva, P.I., Daffre, S., Bulet, P.
      (2000) J Biol Chem 275: 33464

    Organizational Affiliation

    Centre de Biophysique Moléculaire, CNRS, Orléans, France.



Macromolecules
  • Find similar proteins by:  Sequence   |   Structure
Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
GOMESINA19Acanthoscurria gomesianaMutation(s): 0 
Membrane Entity: Yes 
UniProt
Find proteins for P82358 (Acanthoscurria gomesiana)
Explore P82358 
Go to UniProtKB:  P82358
Protein Feature View
Expand
  • Reference Sequence
Small Molecules
Modified Residues  1 Unique
IDChainsTypeFormula2D DiagramParent
PCA
Query on PCA
AL-PEPTIDE LINKINGC5 H7 N O3GLN
Experimental Data & Validation

Experimental Data

  • Method: SOLUTION NMR
  • Conformers Calculated: 200 
  • Conformers Submitted: 20 
  • Selection Criteria: structures with acceptable covalent geometry,structures with favorable non-bond energy,structures with the least restraint violations,structures with the lowest energy 
  • OLDERADO: 1KFP Olderado

Structure Validation

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Entry History 

Deposition Data

Revision History  (Full details and data files)

  • Version 1.0: 2002-04-10
    Type: Initial release
  • Version 1.1: 2008-04-27
    Changes: Version format compliance
  • Version 1.2: 2011-07-13
    Changes: Version format compliance
  • Version 2.0: 2019-12-25
    Changes: Database references, Derived calculations, Polymer sequence, Source and taxonomy