title: An antimicrobial guanidine-bearing sesterterpene from the cultured cyanobacterium Scytonema sp.
abstract: Scytoscalarol (1), a antimicrobial sesterterpene bearing a guanidino group, was isolated from the cultured cyanobacterium Scytonema sp. (UTEX 1163) by bioassay-guided fractionation. The chemical structure was determined by spectroscopic analysis including MS and 1D and 2D NMR. Scytoscalarol (1) showed antimicrobial activities against Bacillus anthracis, Staphylococcus aureus, Escherichia coli, Candida albicans, and Mycobacterium tuberculosis with MIC values in the range from 2 to 110 microM.
authors.affiliation: Department of Medicinal Chemistry and Pharmacognosy, College of Pharmacy, University of Illinois at Chicago, 833 S. Wood Street, Chicago, Illinois 60612, USA.
authors.forename: Shunyan
authors.initials: S
authors.lastname: Mo
authors.forename: Aleksej
authors.initials: A
authors.lastname: Krunic
authors.forename: Scott D
authors.initials: SD
authors.lastname: Pegan
authors.forename: Scott G
authors.initials: SG
authors.lastname: Franzblau
authors.forename: Jimmy
authors.initials: J
authors.lastname: Orjala
mesh_terms: D000900:Anti-Bacterial Agents / Q000737:chemistry / Q000302:isolation & purification* / Q000494:pharmacology*; D000935:Antifungal Agents / Q000737:chemistry / Q000302:isolation & purification* / Q000494:pharmacology*; D001408:Bacillus anthracis / Q000187:drug effects; D002176:Candida albicans / Q000187:drug effects; D000458:Cyanobacteria / Q000737:chemistry*; D004926:Escherichia coli / Q000187:drug effects; D006146:Guanidines / Q000737:chemistry / Q000302:isolation & purification* / Q000494:pharmacology*; D008826:Microbial Sensitivity Tests; D015394:Molecular Structure; D009169:Mycobacterium tuberculosis / Q000187:drug effects; D019906:Nuclear Magnetic Resonance, Biomolecular; D054830:Sesterterpenes / Q000737:chemistry / Q000302:isolation & purification* / Q000494:pharmacology*; D013211:Staphylococcus aureus / Q000187:drug effects
chemical_list: D000900:Anti-Bacterial Agents; D000935:Antifungal Agents; D006146:Guanidines; D054830:Sesterterpenes; C545424:scytoscalarol