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1. US20160046929 - Methods and compositions for identifying a peptide having an intermolecular interaction with a target of interest

Office
United States of America
Application Number 14923855
Application Date 27.10.2015
Publication Number 20160046929
Publication Date 18.02.2016
Grant Number 10160967
Grant Date 25.12.2018
Publication Kind B2
IPC
C12N 15/10
CCHEMISTRY; METALLURGY
12BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
NMICROORGANISMS OR ENZYMES; COMPOSITIONS THEREOF; PROPAGATING, PRESERVING, OR MAINTAINING MICROORGANISMS; MUTATION OR GENETIC ENGINEERING; CULTURE MEDIA
15Mutation or genetic engineering; DNA or RNA concerning genetic engineering, vectors, e.g. plasmids, or their isolation, preparation or purification; Use of hosts therefor
09Recombinant DNA-technology
10Processes for the isolation, preparation or purification of DNA or RNA
C40B 10/00
CCHEMISTRY; METALLURGY
40COMBINATORIAL TECHNOLOGY
BCOMBINATORIAL CHEMISTRY; LIBRARIES, e.g. CHEMICAL LIBRARIES, IN SILICO LIBRARIES
10Directed molecular evolution of macromolecules, e.g. RNA, DNA or proteins
C40B 40/02
CCHEMISTRY; METALLURGY
40COMBINATORIAL TECHNOLOGY
BCOMBINATORIAL CHEMISTRY; LIBRARIES, e.g. CHEMICAL LIBRARIES, IN SILICO LIBRARIES
40Libraries per se, e.g. arrays, mixtures
02Libraries contained in or displayed by microorganisms, e.g. bacteria or animal cells; Libraries contained in or displayed by vectors, e.g. plasmids; Libraries containing only microorganisms or vectors
G01N 33/50
GPHYSICS
01MEASURING; TESTING
NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
33Investigating or analysing materials by specific methods not covered by groups G01N1/-G01N31/131
48Biological material, e.g. blood, urine; Haemocytometers
50Chemical analysis of biological material, e.g. blood, urine; Testing involving biospecific ligand binding methods; Immunological testing
G01N 33/569
GPHYSICS
01MEASURING; TESTING
NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
33Investigating or analysing materials by specific methods not covered by groups G01N1/-G01N31/131
48Biological material, e.g. blood, urine; Haemocytometers
50Chemical analysis of biological material, e.g. blood, urine; Testing involving biospecific ligand binding methods; Immunological testing
53Immunoassay; Biospecific binding assay; Materials therefor
569for microorganisms, e.g. protozoa, bacteria, viruses
CPC
C07K 2319/50
CCHEMISTRY; METALLURGY
07ORGANIC CHEMISTRY
KPEPTIDES
2319Fusion polypeptide
50containing protease site
C07K 2319/70
CCHEMISTRY; METALLURGY
07ORGANIC CHEMISTRY
KPEPTIDES
2319Fusion polypeptide
70containing domain for protein-protein interaction
C12N 15/1037
CCHEMISTRY; METALLURGY
12BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
NMICROORGANISMS OR ENZYMES; COMPOSITIONS THEREOF; PROPAGATING, PRESERVING, OR MAINTAINING MICROORGANISMS; MUTATION OR GENETIC ENGINEERING; CULTURE MEDIA
15Mutation or genetic engineering; DNA or RNA concerning genetic engineering, vectors, e.g. plasmids, or their isolation, preparation or purification; Use of hosts therefor
09Recombinant DNA-technology
10Processes for the isolation, preparation or purification of DNA or RNA
1034Isolating an individual clone by screening libraries
1037Screening libraries presented on the surface of microorganisms, e.g. phage display, E. coli display
C12N 15/1058
CCHEMISTRY; METALLURGY
12BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
NMICROORGANISMS OR ENZYMES; COMPOSITIONS THEREOF; PROPAGATING, PRESERVING, OR MAINTAINING MICROORGANISMS; MUTATION OR GENETIC ENGINEERING; CULTURE MEDIA
15Mutation or genetic engineering; DNA or RNA concerning genetic engineering, vectors, e.g. plasmids, or their isolation, preparation or purification; Use of hosts therefor
09Recombinant DNA-technology
10Processes for the isolation, preparation or purification of DNA or RNA
1034Isolating an individual clone by screening libraries
1058Directional evolution of libraries, e.g. evolution of libraries is achieved by mutagenesis and screening or selection of mixed population of organisms
C40B 10/00
CCHEMISTRY; METALLURGY
40COMBINATORIAL TECHNOLOGY
BCOMBINATORIAL CHEMISTRY; LIBRARIES, e.g. CHEMICAL LIBRARIES, IN SILICO LIBRARIES
10Directed molecular evolution of macromolecules, e.g. RNA, DNA or proteins
C40B 40/02
CCHEMISTRY; METALLURGY
40COMBINATORIAL TECHNOLOGY
BCOMBINATORIAL CHEMISTRY; LIBRARIES, e.g. CHEMICAL LIBRARIES, IN SILICO LIBRARIES
40Libraries per se, e.g. arrays, mixtures
02Libraries contained in or displayed by microorganisms, e.g. bacteria or animal cells; Libraries contained in or displayed by vectors, e.g. plasmids; Libraries containing only microorganisms or vectors
Applicants AEBI LTD.
Inventors Ilan Morad
Hanan Itzhaki
Agents Winston & Strawn LLP
Title
(EN) Methods and compositions for identifying a peptide having an intermolecular interaction with a target of interest
Abstract
(EN)

A system of a recombinant bacteriophage library and a target of interest complex, wherein the recombinant bacteriophage peptide library includes a plurality of peptides expressed on the surface of recombinant bacteriophages wherein each recombinant bacteriophage includes (a) a pill protein; wherein each pill protein includes (b) a peptide or polypeptide involved in an intermolecular interaction, which differs by at least one amino acid from other peptides or polypeptides in the library; and (c) a modified protease cleavage site proximal to the peptide, wherein the modified protease cleavage site is the same in each bacteriophage, the modified cleavage site having a reduced binding affinity to a protease, as compared to a non-modified cleavage site, and wherein the target of interest complex includes a protease, a flexible linker attached to the protease, and a target of interest attached to the flexible linker, wherein the target of interest participates in an intermolecular interaction.