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1. CA2300903 - METHOD OF DRUG SELECTION

Office
Canada
Application Number 2300903
Application Date 20.08.1998
Publication Number 2300903
Publication Date 25.02.1999
Publication Kind A1
IPC
G01N 33/68
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
68involving proteins, peptides or amino acids
C07K 1/04
CCHEMISTRY; METALLURGY
07ORGANIC CHEMISTRY
KPEPTIDES
1General processes for the preparation of peptides
04on carriers
G01N 33/15
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
15Medicinal preparations
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 33/566
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
566using specific carrier or receptor proteins as ligand binding reagent
A61K 38/00
AHUMAN NECESSITIES
61MEDICAL OR VETERINARY SCIENCE; HYGIENE
KPREPARATIONS FOR MEDICAL, DENTAL, OR TOILET PURPOSES
38Medicinal preparations containing peptides
CPC
C40B 30/04
CCHEMISTRY; METALLURGY
40COMBINATORIAL TECHNOLOGY
BCOMBINATORIAL CHEMISTRY; LIBRARIES, e.g. CHEMICAL LIBRARIES, IN SILICO LIBRARIES
30Methods of screening libraries
04by measuring the ability to specifically bind a target molecule, e.g. antibody-antigen binding, receptor-ligand binding
C07K 1/047
CCHEMISTRY; METALLURGY
07ORGANIC CHEMISTRY
KPEPTIDES
1General methods for the preparation of peptides ; , i.e. processes for the organic chemical preparation of peptides or proteins of any length
04on carriers
047Simultaneous synthesis of different peptide species; Peptide libraries
G01N 33/6845
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 G01N1/00 - G01N31/00
48Biological material, e.g. blood, urine
50Chemical analysis of biological material, e.g. blood, urine; Testing involving biospecific ligand binding methods; Immunological testing
68involving proteins, peptides or amino acids
6803General methods of protein analysis not limited to specific proteins or families of proteins
6845Methods of identifying protein-protein interactions in protein mixtures
G01N 2333/245
GPHYSICS
01MEASURING; TESTING
NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
2333Assays involving biological materials from specific organisms or of a specific nature
195from bacteria
24from Enterobacteriaceae (F), e.g. Citrobacter, Serratia, Proteus, Providencia, Morganella, Yersinia
245Escherichia (G)
Applicants NYCOMED IMAGING AS
Inventors WOLFE, HENRY R.
Priority Data 9717652.3 20.08.1997 GB
Title
(EN) METHOD OF DRUG SELECTION
(FR) PROCEDE DE SELECTION DE MEDICAMENTS
Abstract
(EN) Method of selecting a candidate drug compound comprising generating from a starting oligopeptide a plurality of oligopeptides having single site amino acid modifications which lead to a change in the ratio of binding affinity of said oligopeptide to a receptor to biological reponse of said binding, identification of components in the oligopeptide responsible for secondary structure and replacement of said components with non-natural amino acids, construction of combinatorial libraries based on the use of sets of amino acids for the modification sites identified and the construction of further libraries based upon oligopeptides produced in the first library having the desired binding activity. Drug candidates are selected from the identified members of the libraries.


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