Gene VIII-based, phage-display vectors for selection against complex mixtures of ligands

Selection of shotgun phage-display libraries against complex mixtures of components, such as cells or sera, may result in a high number of nonspecifically binding phage. Consequently, correct interactions may be difficult to identify. To enable discrimination between faithful and nonspecific interac...

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Veröffentlicht in:BioTechniques. - 1993. - 24(1998), 2 vom: 01. Feb., Seite 294-301
1. Verfasser: Jacobsson, K (VerfasserIn)
Weitere Verfasser: Frykberg, L
Format: Aufsatz
Sprache:English
Veröffentlicht: 1998
Zugriff auf das übergeordnete Werk:BioTechniques
Schlagworte:Journal Article Research Support, Non-U.S. Gov't Bacterial Proteins Blood Proteins DNA, Bacterial DNA, Viral Immunoglobulin G Oligodeoxyribonucleotides Serum Albumin Staphylococcal Protein A
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500 |a Date Revised 28.09.2018 
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520 |a Selection of shotgun phage-display libraries against complex mixtures of components, such as cells or sera, may result in a high number of nonspecifically binding phage. Consequently, correct interactions may be difficult to identify. To enable discrimination between faithful and nonspecific interactions, a set of eight different gene VIII-based, phage-display vectors were constructed. All vectors contain a "universal" screening tag positioned in such a way that it is only expressed when the inserted DNA encodes an open reading frame, which corrects a shift of reading frames in the vector. A Staphylococcus aureus shotgun phage-display library was made in a stoichiometric mixture of all vectors. After affinity-selection against IgG, one vector completely outcompeted the others. This vector contains the promoter and signal sequence from the gene encoding staphylococcal protein A and one suppressible stop codon immediately upstream of gene VIII. An increase in the frequency of clones expressing the affinity tag in all pannings correlated with selection for ligand-binding clones. This enables detection of putatively correct clones after selection of a shotgun phage-display library both against purified ligands and more complex materials like calf serum 
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650 4 |a Research Support, Non-U.S. Gov't 
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650 7 |a Blood Proteins  |2 NLM 
650 7 |a DNA, Bacterial  |2 NLM 
650 7 |a DNA, Viral  |2 NLM 
650 7 |a Immunoglobulin G  |2 NLM 
650 7 |a Oligodeoxyribonucleotides  |2 NLM 
650 7 |a Serum Albumin  |2 NLM 
650 7 |a Staphylococcal Protein A  |2 NLM 
700 1 |a Frykberg, L  |e verfasserin  |4 aut 
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