1ZFU

Plectasin:A peptide antibiotic with therapeutic potential from a saprophytic fungus


Experimental Data Snapshot

  • Method: SOLUTION NMR
  • Conformers Calculated: 100 
  • Conformers Submitted: 10 
  • Selection Criteria: best target function values 

wwPDB Validation 3D Report Full Report


This is version 1.2 of the entry. See complete history

Literature

Plectasin is a peptide antibiotic with therapeutic potential from a saprophytic fungus.

Mygind, P.H.Fischer, R.L.Schnorr, K.M.Hansen, M.T.Sonksen, C.P.Ludvigsen, S.Raventos, D.Buskov, S.Christensen, B.De Maria, L.Taboureau, O.Yaver, D.Elvig-Jorgensen, S.G.Sorensen, M.V.Christensen, B.E.Kjaerulff, S.Frimodt-Moller, N.Lehrer, R.I.Zasloff, M.Kristensen, H.H.

(2005) Nature 437: 975-980

  • DOI: 10.1038/nature04051

  • PubMed Abstract: 
  • Animals and higher plants express endogenous peptide antibiotics called defensins. These small cysteine-rich peptides are active against bacteria, fungi and viruses. Here we describe plectasin-the first defensin to be isolated from a fungus, the sapr ...

    Animals and higher plants express endogenous peptide antibiotics called defensins. These small cysteine-rich peptides are active against bacteria, fungi and viruses. Here we describe plectasin-the first defensin to be isolated from a fungus, the saprophytic ascomycete Pseudoplectania nigrella. Plectasin has primary, secondary and tertiary structures that closely resemble those of defensins found in spiders, scorpions, dragonflies and mussels. Recombinant plectasin was produced at a very high, and commercially viable, yield and purity. In vitro, the recombinant peptide was especially active against Streptococcus pneumoniae, including strains resistant to conventional antibiotics. Plectasin showed extremely low toxicity in mice, and cured them of experimental peritonitis and pneumonia caused by S. pneumoniae as efficaciously as vancomycin and penicillin. These findings identify fungi as a novel source of antimicrobial defensins, and show the therapeutic potential of plectasin. They also suggest that the defensins of insects, molluscs and fungi arose from a common ancestral gene.


    Organizational Affiliation

    Novozymes A/S, 2880 Bagsvaerd, Denmark.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
Plectasin
A
40Pseudoplectania nigrellaMutation(s): 0 
Gene Names: DEF
Find proteins for Q53I06 (Pseudoplectania nigrella)
Go to UniProtKB:  Q53I06
Experimental Data & Validation

Experimental Data

  • Method: SOLUTION NMR
  • Conformers Calculated: 100 
  • Conformers Submitted: 10 
  • Selection Criteria: best target function values 
  • Olderado: 1ZFU Olderado

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Revision History 

  • Version 1.0: 2005-10-18
    Type: Initial release
  • Version 1.1: 2008-04-30
    Type: Version format compliance
  • Version 1.2: 2011-07-13
    Type: Version format compliance