5Y0J

Solution structure of arenicin-3 derivative N2

  • Classification: ANTIBIOTIC

  • Deposited: 2017-07-17 Released: 2017-07-26 
  • Deposition Author(s): Liu, X.H., Wang, J.H.
  • Funding Organization(s): null 

Experimental Data Snapshot

  • Method: SOLUTION NMR
  • Conformers Calculated: 100 
  • Conformers Submitted: 20 
  • Selection Criteria: structures with the lowest energy 

wwPDB Validation 3D Report Full Report


This is version 1.1 of the entry. See complete history

Literature

Antibacterial and detoxifying activity of NZ17074 analogues with multi-layers of selective antimicrobial actions against Escherichia coli and Salmonella enteritidis

Yang, N.Liu, X.Teng, D.Li, Z.Wang, X.Mao, R.Wang, X.M.Hao, Y.Wang, J.

(2017) Sci Rep 7: 3392-3392

  • DOI: 10.1038/s41598-017-03664-2
  • Primary Citation of Related Structures:  

  • PubMed Abstract: 
  • NZ17074 (N1), an arenicin-3 derivative isolated from the lugworm, has potent antibacterial activity and is cytotoxic. To reduce its cytotoxicity, seven N1 analogues with different structures were designed by changing their disulfide bonds, hydrophobi ...

    NZ17074 (N1), an arenicin-3 derivative isolated from the lugworm, has potent antibacterial activity and is cytotoxic. To reduce its cytotoxicity, seven N1 analogues with different structures were designed by changing their disulfide bonds, hydrophobicity, or charge. The "rocket" analogue-N2 and the "kite" analogue-N6 have potent activity and showed lower cytotoxicity in RAW264.7 cells than N1. The NMR spectra revealed that N1, N2, and N6 adopt β-sheet structures stabilized by one or two disulfide bonds. N2 and N6 permeabilized the outer/inner membranes of E. coli, but did not permeabilize the inner membranes of S. enteritidis. N2 and N6 induced E. coli and S. enteritidis cell cycle arrest in the I-phase and R-phase, respectively. In E. coli and in S. enteritidis, 18.7-43.8% of DNA/RNA/cell wall synthesis and 5.7-61.8% of DNA/RNA/protein synthesis were inhibited by the two peptides, respectively. Collapsed and filamentous E. coli cells and intact morphologies of S. enteritidis cells were observed after treatment with the two peptides. Body weight doses from 2.5-7.5 mg/kg of N2 and N6 enhanced the survival rate of peritonitis- and endotoxemia-induced mice; reduced the serum IL-6, IL-1β and TNF-α levels; and protected mice from lipopolysaccharide-induced lung injury. These data indicate that N2 and N6, through multiple selective actions, may be promising dual-function candidates as novel antimicrobial and anti-endotoxin peptides.


    Organizational Affiliation

    Key Laboratory of Feed Biotechnology, Ministry of Agriculture, Beijing, 100081, China.,Key Laboratory of Feed Biotechnology, Ministry of Agriculture, Beijing, 100081, China. wangjianhua@caas.cn.,Gene Engineering Laboratory, Feed Research Institute, Chinese Academy of Agricultural Sciences, Beijing, 100081, China. wangjianhua@caas.cn.,Key Laboratory of Feed Biotechnology, Ministry of Agriculture, Beijing, 100081, China. wangxiumin@caas.cn.,Gene Engineering Laboratory, Feed Research Institute, Chinese Academy of Agricultural Sciences, Beijing, 100081, China.,Gene Engineering Laboratory, Feed Research Institute, Chinese Academy of Agricultural Sciences, Beijing, 100081, China. wangxiumin@caas.cn.,Institute of Biophysics, Chinese Academy of Sciences, Beijing, China.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
N2
A
21N/AMutation(s): 0 
Protein Feature View is not available: No corresponding UniProt sequence found.
Experimental Data & Validation

Experimental Data

  • Method: SOLUTION NMR
  • Conformers Calculated: 100 
  • Conformers Submitted: 20 
  • Selection Criteria: structures with the lowest energy 

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History & Funding Information

Deposition Data

  • Deposited Date: 2017-07-17 
  • Released Date: 2017-07-26 
  • Deposition Author(s): Liu, X.H., Wang, J.H.

Funding OrganizationLocationGrant Number
China31372346

Revision History 

  • Version 1.0: 2017-07-26
    Type: Initial release
  • Version 1.1: 2018-03-14
    Type: Experimental preparation