Antimicrobial Peptides - Mode of Action

Mode of Action

Several methods have been used to determine the mechanisms of antimicrobial peptide activity. In particular, solid-state NMR studies have provided an atomic-level resolution explanation of membrane disruption by antimicrobial peptides.

Methods Applications
Microscopy to visualize the effects of antimicrobial peptides on microbial cells.
Fluorescent dyes to measure antimicrobial peptides to permeabilize membrane vesicles.
Ion channel formation to assess the formation and stability of an antimicrobial-peptide-induced pore.
Circular dichroism and orientated circular dichroism to measure the orientation and secondary structure of an antimicrobial peptide bound to a lipid bilayer
Dual Polarization Interferometry to measure the different mechanisms of antimocrobial peptides
Solid-state NMR spectroscopy to measure the secondary structure, orientation and penetration of antimicrobial peptides into lipid bilayers in the biologically relevant LIQUID-CRYSTALLINE STATE
Neutron and X-ray diffraction to measure the diffraction patterns of peptide-induced pores within membranes in oriented multilayers or liquids

Read more about this topic:  Antimicrobial Peptides

Famous quotes containing the words mode of, mode and/or action:

    Happiness is a matter of one’s most ordinary everyday mode of consciousness being busy and lively and unconcerned with self. To be damned is for one’s ordinary everyday mode of consciousness to be unremitting agonising preoccupation with self.
    Iris Murdoch (b. 1919)

    The love of their country is with them only a mode of flattering its master; as soon as they think that master can no longer hear, they speak of everything with a frankness which is the more startling because those who listen to it become responsible.
    Marquis De Custine (1790–1857)

    I feel like a white granular mass of amorphous crystals—my formula appears to be isomeric with Spasmotoxin. My aurochloride precipitates into beautiful prismatic needles. My Platinochloride develops octohedron crystals,—with a fine blue florescence. My physiological action is not indifferent. One millionth of a grain injected under the skin of a frog produced instantaneous death accompanied by an orange blossom odor.
    Lafcadio Hearn (1850–1904)