Selection of peptides that bind to plasminogen activator inhibitor 1 (PAI-1) using random peptide phage-display libraries. 1998

H Gårdsvoll, and A J van Zonneveld, and A Holm, and E Eldering, and M van Meijer, and K Danø, and H Pannekoek
Department of Biochemistry, Academic Medical Center, University of Amsterdam, The Netherlands. gvoll@inet.uni-c.dk

Large random hexa- and decapenta-peptide libraries were constructed and displayed on the surface of the filamentous phagemid pComb8. Panning of the hexa-peptide library on immobilized plasminogen activator inhibitor 1 (PAI-1) specifically selected a minor fraction of concatemers, indicating that binding to PAI-1 requires an extended amino acid sequence. Accordingly, the decapenta-peptide library exclusively yielded PAI-1 binding peptides of 15 amino acid residues. None of these phage-bound peptides prevented the interaction between PAI-1 and its target serine protease urokinase (u-PA). To isolate peptides that block the interaction between PAI-1 and u-PA, phages bound to immobilized PAI-1 were eluted by incubation with u-PA. Remarkably, this procedure resulted in elution of a unique phage type that harbors a concatemer of decapentamers, consisting of 49 amino acid residues with no obvious similarity to the primary sequence of PAI-1 or u-PA.

UI MeSH Term Description Entries
D008969 Molecular Sequence Data Descriptions of specific amino acid, carbohydrate, or nucleotide sequences which have appeared in the published literature and/or are deposited in and maintained by databanks such as GENBANK, European Molecular Biology Laboratory (EMBL), National Biomedical Research Foundation (NBRF), or other sequence repositories. Sequence Data, Molecular,Molecular Sequencing Data,Data, Molecular Sequence,Data, Molecular Sequencing,Sequencing Data, Molecular
D010455 Peptides Members of the class of compounds composed of AMINO ACIDS joined together by peptide bonds between adjacent amino acids into linear, branched or cyclical structures. OLIGOPEPTIDES are composed of approximately 2-12 amino acids. Polypeptides are composed of approximately 13 or more amino acids. PROTEINS are considered to be larger versions of peptides that can form into complex structures such as ENZYMES and RECEPTORS. Peptide,Polypeptide,Polypeptides
D006801 Humans Members of the species Homo sapiens. Homo sapiens,Man (Taxonomy),Human,Man, Modern,Modern Man
D000595 Amino Acid Sequence The order of amino acids as they occur in a polypeptide chain. This is referred to as the primary structure of proteins. It is of fundamental importance in determining PROTEIN CONFORMATION. Protein Structure, Primary,Amino Acid Sequences,Sequence, Amino Acid,Sequences, Amino Acid,Primary Protein Structure,Primary Protein Structures,Protein Structures, Primary,Structure, Primary Protein,Structures, Primary Protein
D001435 Bacteriophages Viruses whose hosts are bacterial cells. Phages,Bacteriophage,Phage
D001665 Binding Sites The parts of a macromolecule that directly participate in its specific combination with another molecule. Combining Site,Binding Site,Combining Sites,Site, Binding,Site, Combining,Sites, Binding,Sites, Combining
D014568 Urokinase-Type Plasminogen Activator A proteolytic enzyme that converts PLASMINOGEN to FIBRINOLYSIN where the preferential cleavage is between ARGININE and VALINE. It was isolated originally from human URINE, but is found in most tissues of most VERTEBRATES. Plasminogen Activator, Urokinase-Type,U-Plasminogen Activator,Urinary Plasminogen Activator,Urokinase,Abbokinase,Kidney Plasminogen Activator,Renokinase,Single-Chain Urokinase-Type Plasminogen Activator,U-PA,Single Chain Urokinase Type Plasminogen Activator,U Plasminogen Activator,Urokinase Type Plasminogen Activator
D017386 Sequence Homology, Amino Acid The degree of similarity between sequences of amino acids. This information is useful for the analyzing genetic relatedness of proteins and species. Homologous Sequences, Amino Acid,Amino Acid Sequence Homology,Homologs, Amino Acid Sequence,Homologs, Protein Sequence,Homology, Protein Sequence,Protein Sequence Homologs,Protein Sequence Homology,Sequence Homology, Protein,Homolog, Protein Sequence,Homologies, Protein Sequence,Protein Sequence Homolog,Protein Sequence Homologies,Sequence Homolog, Protein,Sequence Homologies, Protein,Sequence Homologs, Protein
D017395 Plasminogen Activator Inhibitor 1 A member of the serpin family of proteins. It inhibits both the tissue-type and urokinase-type plasminogen activators. PAI-1,SERPINE1 Protein,Serpin E1,Type 1 Plasminogen Activator Inhibitor,E1, Serpin,Protein, SERPINE1
D019151 Peptide Library A collection of cloned peptides, or chemically synthesized peptides, frequently consisting of all possible combinations of amino acids making up an n-amino acid peptide. Phage Display Peptide Library,Random Peptide Library,Peptide Phage Display Library,Phage Display Library, Peptide,Synthetic Peptide Combinatorial Library,Synthetic Peptide Library,Libraries, Peptide,Libraries, Random Peptide,Libraries, Synthetic Peptide,Library, Peptide,Library, Random Peptide,Library, Synthetic Peptide,Peptide Libraries,Peptide Libraries, Random,Peptide Libraries, Synthetic,Peptide Library, Random,Peptide Library, Synthetic,Random Peptide Libraries,Synthetic Peptide Libraries

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