title: Isolation and characterization of Neosartorya fischeri antifungal protein (NFAP).
abstract: A novel 6.6 kDa antifungal peptide (NFAP) from the culture supernatant of the mold, Neosartorya fischeri (anamorf: Aspergillus fischerianus), and its encoding gene were isolated in this study. NFAP is a small, basic and cysteine-rich protein consisting of 57 amino acid residues. It shows 37.9-50% homology to similar proteins described in literature from Aspergillus clavatus, Aspergillus giganteus, Aspergillus niger, and Penicillium chrysogenum. The in silico presumed tertiary structure of NFAP, e.g. the presence of five antiparallel β-sheet connected with filaments, and stabilized by three disulfide bridges, is very similar to those of the defensin-like molecules. NFAP exhibited growth inhibitory action against filamentous fungi in a dose-dependent manner, and maintained high antifungal activity within broad pH and temperature ranges. Furthermore, it exhibited relevant resistance to proteolysis. All these characteristics make NFAP a promising candidate for further in vitro and in vivo investigations aiming at the development of new antifungal compounds.
authors: Department of Microbiology, Faculty of Science and Informatics, University of Szeged, Szeged, Hungary.
authors: Laura
authors: L
authors: Kovács
authors: Máté
authors: M
authors: Virágh
authors: Miklós
authors: M
authors: Takó
authors: Tamás
authors: T
authors: Papp
authors: Csaba
authors: C
authors: Vágvölgyi
authors: László
authors: L
authors: Galgóczy
mesh_terms: D000595:Amino Acid Sequence; D000935:Antifungal Agents / Q000737:chemistry* / Q000302:isolation & purification*; D001483:Base Sequence; D005656:Fungal Proteins / Q000737:chemistry* / Q000302:isolation & purification*; D008969:Molecular Sequence Data; D055326:Neosartorya / Q000737:chemistry*
chemical_list: D000935:Antifungal Agents; D005656:Fungal Proteins