title: Cloning and characterisation of a polyubiquitin gene from the ectomycorrhizal fungus Tuber borchii vittad.
abstract: Ubiquitin is a highly conserved 76-amino acid protein implicated in the function of quite different vital cellular processes. In the present study, we cloned and sequenced a polyubiquitin gene from Tuber borchii (Ubil) that is organised in four tandem repeats, with two C-terminal extension amino acids, serine and leucine. Two introns of 116 bp and 55 bp in length were detected in the first and second repeats, respectively. The Ubil gene is highly expressed in mycelium and is less expressed in the ripe fruiting body. Southern and Northern blot analyses revealed a second form of the ubiquitin gene.
authors.affiliation: Istituto di Chimica Biologica Giorgio Fornaini, Università degli Studi di Urbino, Italy.
authors.forename: S
authors.initials: S
authors.lastname: Zeppa
authors.forename: L
authors.initials: L
authors.lastname: Potenza
authors.forename: E
authors.initials: E
authors.lastname: Polidori
authors.forename: M
authors.initials: M
authors.lastname: Guescini
authors.forename: D
authors.initials: D
authors.lastname: Agostini
authors.forename: G
authors.initials: G
authors.lastname: Giomaro
authors.forename: V
authors.initials: V
authors.lastname: Stocchi
mesh_terms: D000595:Amino Acid Sequence; D001203:Ascomycota / Q000235:genetics* / Q000254:growth & development; D001483:Base Sequence; D003001:Cloning, Molecular; D018076:DNA, Complementary / Q000235:genetics; D004271:DNA, Fungal / Q000235:genetics; D018507:Gene Expression Regulation, Developmental; D015966:Gene Expression Regulation, Fungal; D005800:Genes, Fungal; D007438:Introns; D008969:Molecular Sequence Data; D025821:Polyubiquitin / Q000235:genetics*; D020080:Tandem Repeat Sequences
chemical_list: D018076:DNA, Complementary; D004271:DNA, Fungal; D025821:Polyubiquitin