▪ Amber codon TAG: supE strains (glutamic acid
codon), non-suppressor strains (stop codon)
▪ Protease cleavage site
▪ Promoter
▪ Signal peptides: phage protein translocation, crucial
▪ pIII protein is essential for infection of
bacteria
▪ Helper phage: wild-type pIII helper phage
and special helper phage
▪ Antigen immobilized on magnetic beads,
DNA recombination and gene manipulation; multiple cloning sites (MCS)
▪ Coat protein: PIII (larger protein, less than 5 copies,)
PVIII (more than 5 copies, decreased length)
Introduction of Phage Display Technology
The Ff bacteriophage structure
Introduction of Phage Display Technology
The scheme of phagemid vector
▪ IG region: intergenic region, usually contains the
polystryrene surfaces, or on columns, or is used in solution as biotinylated antigen and