ISDA

Deposition Date 2014-03-27

Release Date 2014-09-17

Last Version Date 2024-10-30

Entry Detail

PDB ID:

2MN3

Keywords:

ANTIMICROBIAL PROTEIN

Title:

Structure of Platypus 'Intermediate' Defensin-like Peptide (Int-DLP)

Biological Source:

Source Organism:

Ornithorhynchus anatinus (Taxon ID: 9258)

Method Details:

Experimental Method:

SOLUTION NMR

Conformers Calculated:

1000

Conformers Submitted:

Selection Criteria:

structures with the least restraint violations

Download Validation Report

Macromolecular Entities

Protein Blast

Polymer Type:polypeptide(L)
Molecule:Defensin-BvL
Chain IDs:A
Chain Length:44
Number of Molecules:1
Biological Source:Ornithorhynchus anatinus

UniProt ID:P0C8B1 Pfam ID:PF17858

Ligand Molecules

Primary Citation

Structure and antimicrobial activity of platypus 'intermediate' defensin-like peptide.

Torres, A.M, Bansal, P, Koh, J.M, Pages, G, Wu, M.J, Kuchel, P.W, Whittington, C.M, Papenfuss, A.T, Bansal, P, Torres, A.M, Wong, E.S, Deakin, J.E, Graves, T, Alsop, A, Schatzkamer, K, Kremitzki, C, Ponting, C.P, Temple-Smith, P, Warren, W.C, Kuchel, P.W, Belov, K.Show

Febs Lett. 588 1821 1826 (2014)

PMID: 24694388 DOI: 10.1016/j.febslet.2014.03.044

Abstact

The three-dimensional structure of a chemically synthesized peptide that we have called 'intermediate' defensin-like peptide (Int-DLP), from the platypus genome, was determined by nuclear magnetic resonance (NMR) spectroscopy; and its antimicrobial activity was investigated. The overall structural fold of Int-DLP was similar to that of the DLPs and β-defensins, however the presence of a third antiparallel β-strand makes its structure more similar to the β-defensins than the DLPs. Int-DLP displayed potent antimicrobial activity against Staphylococcus aureus and Pseudomonas aeruginosa. The four arginine residues at the N-terminus of Int-DLP did not affect the overall fold, but were important for its antimicrobial potency.

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Primary Citation of related structures