Research output: Contribution to journal/Conference contribution in journal/Contribution to newspaper › Journal article › Research › peer-review
Research output: Contribution to journal/Conference contribution in journal/Contribution to newspaper › Journal article › Research › peer-review
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TY - JOUR
T1 - Eurocin, a new fungal defensin
T2 - structure, lipid binding and its mode of action
AU - Oeemig, Jesper S
AU - Lynggaard, Carina
AU - Knudsen, Daniel
AU - Hansen, Frederik T
AU - Noergaard, Kent D
AU - Schneider, Tanja
AU - Vad, Brian S
AU - Sandvang, Dorthe
AU - Nielsen, Line
AU - Neve, Soeren
AU - Kristensen, Hans-Henrik
AU - Sahl, Hans-Georg
AU - Otzen, Daniel
AU - Wimmer, Reinhard
PY - 2012/12/7
Y1 - 2012/12/7
N2 - Antimicrobial peptides are a new class of antibiotics that are promising for pharmaceutical applications, since they have retained efficacy throughout evolution. One class of antimicrobial peptides are the defensins, that have been found in different species. Here we describe a new fungal defensin, eurocin. Eurocin acts against a range of gram-positive human pathogens, but not against gram-negative bacteria. Eurocin consists of 42 amino acids, forming a cysteine-stabilized α/β fold. Thermal denaturation data point shows the disulphide bridges being responsible for the stability of the fold. Eurocin does not form pores in cell membranes at physiologically relevant concentrations, it does, however, lead to limited leakage of a fluorophore from small unilamellar vesicles. Eurocin interacts with detergent micelles, and it inhibits the synthesis of cell walls by binding equimolarly to the cell wall precursor lipid II.
AB - Antimicrobial peptides are a new class of antibiotics that are promising for pharmaceutical applications, since they have retained efficacy throughout evolution. One class of antimicrobial peptides are the defensins, that have been found in different species. Here we describe a new fungal defensin, eurocin. Eurocin acts against a range of gram-positive human pathogens, but not against gram-negative bacteria. Eurocin consists of 42 amino acids, forming a cysteine-stabilized α/β fold. Thermal denaturation data point shows the disulphide bridges being responsible for the stability of the fold. Eurocin does not form pores in cell membranes at physiologically relevant concentrations, it does, however, lead to limited leakage of a fluorophore from small unilamellar vesicles. Eurocin interacts with detergent micelles, and it inhibits the synthesis of cell walls by binding equimolarly to the cell wall precursor lipid II.
U2 - 10.1074/jbc.M112.382028
DO - 10.1074/jbc.M112.382028
M3 - Journal article
C2 - 23093408
VL - 7
SP - 42361
EP - 42372
JO - Journal of Biological Chemistry
JF - Journal of Biological Chemistry
SN - 0021-9258
ER -