title: Molecular evolution of ubiquitin genes.
abstract: Ubiquitin is a singular protein with multiple functions. It is probably the most slowly evolving protein known, is encoded by genes with a unique structure, and provides an intriguing case study for various aspects of molecular evolution. In particular, the multiple ubiquitin-coding repeats which have been characterized in man, yeast and a slime mould graphically illustrate the dynamics of concerted evolution, but cast doubts on the effectiveness of this process for unlinked arrays in this repeat family.
authors.affiliation: Dept of Genetics, Trinity College, Dublin 2, Ireland.
authors.forename: P M
authors.initials: PM
authors.lastname: Sharp
authors.forename: W H
authors.initials: WH
authors.lastname: Li