title: Selectively infective phages (SIP).
abstract: We review here advances in the selectively infective phage (SIP) technology, a novel method for the in vivo selection of interacting protein-ligand pairs. A 'selectively infective phage' consists of two components, a filamentous phage particle made non-infective by replacing its N-terminal domains of gene3 protein (g3p) with a ligand-binding protein, and an 'adapter' molecule in which the ligand is linked to those N-terminal domains of g3p which are missing from the phage particle. Infectivity is restored when the displayed protein binds the ligand and thereby attaches the missing N-terminal domains of g3p to the phage particle. Phage propagation becomes strictly dependent on the protein-ligand interaction. This method shows promise both in the area of library screening and in the optimization of peptides or proteins.
authors.affiliation: Biochemisches Institut der Universität Zürich, Switzerland.
authors.forename: S
authors.initials: S
authors.lastname: Spada
authors.forename: C
authors.initials: C
authors.lastname: Krebber
authors.forename: A
authors.initials: A
authors.lastname: Plückthun
mesh_terms: D001435:Bacteriophages / Q000737:chemistry / Q000235:genetics* / Q000472:pathogenicity*; D019143:Evolution, Molecular; D005818:Genetic Engineering; D006801:Humans; D017911:Inoviridae / Q000235:genetics; D019151:Peptide Library; D015202:Protein Engineering
chemical_list: D019151:Peptide Library