US20100266639 Expression system

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United States of America

Application Number 11728384

Application Date 26.03.2007

Publication Number 20100266639

Publication Date 21.10.2010

Grant Number 08313928

Grant Date 20.11.2012

Publication Kind B2

IPC

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Applicants The Secretary of State for Defense

Inventors Williamson Ethel Diane
Miller Julie
Walker Nicola Jane
Baillie Leslie William James
Holden Paula Thomson
Flick-Smith Helen Claire
Bullifent Helen Lisa
Titball Richard William
Topping Andrew William

Agents Kilpatrick Stockton & Townsend LLP

Priority Data 0016702.3 08.07.2000 GB

Title

(EN) Expression system

Abstract

(EN)

An immunogenic reagent which produces an immune response which is protective against Bacillus anthracis, said reagent comprising one or more polypeptides which together represent up to three domains of the full length Protective Antigen (PA) of B. anthracis or variants of these, and at least one of said domains comprises domain 1 or domain 4 of PA or a variant thereof. The polypeptides of the immunogenic reagent as well as full length PA are produced by expression from E. coli. High yields of polypeptide are obtained using this method. Cells, vectors and nucleic acids used in the method are also described and claimed.

A	HUMAN NECESSITIES
61	MEDICAL OR VETERINARY SCIENCE; HYGIENE
K	PREPARATIONS FOR MEDICAL, DENTAL, OR TOILET PURPOSES
39	Medicinal preparations containing antigens or antibodies
02	Bacterial antigens
07	Bacillus

C	CHEMISTRY; METALLURGY
12	BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
N	MICROORGANISMS OR ENZYMES; COMPOSITIONS THEREOF; PROPAGATING, PRESERVING, OR MAINTAINING MICROORGANISMS; MUTATION OR GENETIC ENGINEERING; CULTURE MEDIA
15	Mutation or genetic engineering; DNA or RNA concerning genetic engineering, vectors, e.g. plasmids, or their isolation, preparation or purification; Use of hosts therefor
09	Recombinant DNA-technology

C	CHEMISTRY; METALLURGY
12	BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
N	MICROORGANISMS OR ENZYMES; COMPOSITIONS THEREOF; PROPAGATING, PRESERVING, OR MAINTAINING MICROORGANISMS; MUTATION OR GENETIC ENGINEERING; CULTURE MEDIA
1	Microorganisms, e.g. protozoa; Compositions thereof; Processes of propagating, maintaining or preserving microorganisms or compositions thereof; Processes of preparing or isolating a composition containing a microorganism; Culture media therefor
20	Bacteria; Culture media therefor
21	modified by introduction of foreign genetic material

C	CHEMISTRY; METALLURGY
12	BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
N	MICROORGANISMS OR ENZYMES; COMPOSITIONS THEREOF; PROPAGATING, PRESERVING, OR MAINTAINING MICROORGANISMS; MUTATION OR GENETIC ENGINEERING; CULTURE MEDIA
15	Mutation or genetic engineering; DNA or RNA concerning genetic engineering, vectors, e.g. plasmids, or their isolation, preparation or purification; Use of hosts therefor
09	Recombinant DNA-technology
63	Introduction of foreign genetic material using vectors; Vectors; Use of hosts therefor; Regulation of expression
70	Vectors or expression systems specially adapted for E. coli

C	CHEMISTRY; METALLURGY
07	ORGANIC CHEMISTRY
H	SUGARS; DERIVATIVES THEREOF; NUCLEOSIDES; NUCLEOTIDES; NUCLEIC ACIDS
21	Compounds containing two or more mononucleotide units having separate phosphate or polyphosphate groups linked by saccharide radicals of nucleoside groups, e.g. nucleic acids
04	with deoxyribosyl as saccharide radical

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1. US20100266639 - Expression system

C	CHEMISTRY; METALLURGY
07	ORGANIC CHEMISTRY
K	PEPTIDES
14	Peptides having more than 20 amino acids; Gastrins; Somatostatins; Melanotropins; Derivatives thereof
195	from bacteria
32	from Bacillus (G)

A	HUMAN NECESSITIES
61	MEDICAL OR VETERINARY SCIENCE; HYGIENE
P	SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
31	Antiinfectives, i.e. antibiotics, antiseptics, chemotherapeutics
04	Antibacterial agents