title: Tylopeptins A and B, new antibiotic peptides from Tylopilus neofelleus.
abstract: Two new peptides, tylopeptins A and B, were isolated from the methanol extract of the fruiting body of the mushroom, Tylopilus neofelleus. These peptides were identified as peptaibols possessing an acetylated N-terminal residue, fourteen amino acids, and leucinol as the C-terminal amino alcohol. Sequential determination and complete 1H and 13C resonance assignments were based on positive ion FAB mass spectroscopy and two dimensional NMR techniques. These peptides were subsequently shown to be active against some gram-positive bacteria, but inactive against pathogenic fungi and gram-negative bacteria.
authors.affiliation: Korea Research Institute of Bioscience and Biotechnology, Yusong, Taejon.
authors.forename: S J
authors.initials: SJ
authors.lastname: Lee
authors.forename: B S
authors.initials: BS
authors.lastname: Yun
authors.forename: D H
authors.initials: DH
authors.lastname: Cho
authors.forename: I D
authors.initials: ID
authors.lastname: Yoo
mesh_terms: D000363:Agaricales / Q000737:chemistry*; D000595:Amino Acid Sequence; D000596:Amino Acids / Q000032:analysis; D000900:Anti-Bacterial Agents / Q000737:chemistry / Q000302:isolation & purification* / Q000494:pharmacology; D009682:Magnetic Resonance Spectroscopy; D008969:Molecular Sequence Data; D054848:Peptaibols; D010455:Peptides
chemical_list: D000596:Amino Acids; D000900:Anti-Bacterial Agents; D054848:Peptaibols; D010455:Peptides; C403870:tylopeptin A; C403871:tylopeptin B