title: Iron-regulated proteins in Phanerochaete chrysosporium and Lentinula edodes: differential analysis by sodium dodecyl sulfate polyacrylamide gel electrophoresis and two-dimensional polyacrylamide gel electrophoresis profiles.
abstract: Sodium dodecyl sulfate polyacrylamide gel electrophoresis (SDS-PAGE) and two-dimensional gel electrophoresis (2-DE) were used to identify iron-responsive proteins in the white-rot species (Phanerochaete chrysosporium and Lentinula edodes), by comparing the differential patterns of cellular and membrane proteins obtained from iron-sufficient and iron-deficient mycelia. Six cellular proteins induced by iron restriction have been observed in SDS-PAGE for P. chrysosporium and twelve for L. edodes. In 2-DE, the numbers of iron-restricted induced proteins were 12 and 9, respectively, in a resolution range of 15-60 kDa and pI 4.5-8.1. SDS-PAGE for the plasma membrane protein did not show differences, whereas the outer-membrane protein profile showed 6 and 5 proteins induced by iron depletion in P. chrysosporium and L. edodes, respectively. The results presented here are important data to unravel mechanisms of biosynthesis and/or transport of the iron-complexing agents in ligninolytic fungi and to further correlate them to the ligninolytic processes.
authors.affiliation: Centro de Biologia Molecular e Engenharia Genética, Universidade Estadual de Campinas, Campinas, SP, Brasil.
authors.forename: Maria L
authors.initials: ML
authors.lastname: Hernández-Macedo
authors.forename: André
authors.initials: A
authors.lastname: Ferraz
authors.forename: Jaime
authors.initials: J
authors.lastname: Rodríguez
authors.forename: Laura M M
authors.initials: LM
authors.lastname: Ottoboni
authors.forename: Maricilda Palandi
authors.initials: MP
authors.lastname: De Mello
mesh_terms: D002912:Chrysosporium / Q000737:chemistry* / Q000254:growth & development; D015180:Electrophoresis, Gel, Two-Dimensional; D004591:Electrophoresis, Polyacrylamide Gel; D005656:Fungal Proteins / Q000032:analysis* / Q000096:biosynthesis / Q000187:drug effects; D015966:Gene Expression Regulation, Fungal / Q000187:drug effects*; D007501:Iron / Q000494:pharmacology*; D020942:Shiitake Mushrooms / Q000737:chemistry* / Q000235:genetics / Q000254:growth & development
chemical_list: D005656:Fungal Proteins; D007501:Iron