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1. US20120009625 - Secretion expression of antibiotic peptide CAD in Bacillus subtilis and expression system of recombination Bacillus subtilis

Office
États-Unis d'Amérique
Numéro de la demande 13054928
Date de la demande 21.07.2009
Numéro de publication 20120009625
Date de publication 12.01.2012
Numéro de délivrance 08809036
Date de délivrance 19.08.2014
Type de publication B2
CIB
C12N 15/09
CCHIMIE; MÉTALLURGIE
12BIOCHIMIE; BIÈRE; SPIRITUEUX; VIN; VINAIGRE; MICROBIOLOGIE; ENZYMOLOGIE; TECHNIQUES DE MUTATION OU DE GÉNÉTIQUE
NMICRO-ORGANISMES OU ENZYMES; COMPOSITIONS LES CONTENANT; CULTURE OU CONSERVATION DE MICRO-ORGANISMES; TECHNIQUES DE MUTATION OU DE GÉNÉTIQUE; MILIEUX DE CULTURE
15Techniques de mutation ou génie génétique; ADN ou ARN concernant le génie génétique, vecteurs, p.ex. plasmides, ou leur isolement, leur préparation ou leur purification; Utilisation d'hôtes pour ceux-ci
09Technologie d'ADN recombinant
C12N 9/54
CCHIMIE; MÉTALLURGIE
12BIOCHIMIE; BIÈRE; SPIRITUEUX; VIN; VINAIGRE; MICROBIOLOGIE; ENZYMOLOGIE; TECHNIQUES DE MUTATION OU DE GÉNÉTIQUE
NMICRO-ORGANISMES OU ENZYMES; COMPOSITIONS LES CONTENANT; CULTURE OU CONSERVATION DE MICRO-ORGANISMES; TECHNIQUES DE MUTATION OU DE GÉNÉTIQUE; MILIEUX DE CULTURE
9Enzymes, p.ex. ligases (6.); Proenzymes; Compositions les contenant; Procédés pour préparer, activer, inhiber, séparer ou purifier des enzymes
14Hydrolases (3.)
48agissant sur les liaisons peptidiques, p.ex. thromboplastine, aminopeptidase de la leucine (3.4)
50Protéinases
52provenant de bactéries
54les bactéries étant du genre Bacillus
A61K 38/00
ANÉCESSITÉS COURANTES DE LA VIE
61SCIENCES MÉDICALE OU VÉTÉRINAIRE; HYGIÈNE
KPRÉPARATIONS À USAGE MÉDICAL, DENTAIRE OU POUR LA TOILETTE
38Préparations médicinales contenant des peptides
CPC
C12N 15/75
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
63Introduction of foreign genetic material using vectors; Vectors; Use of hosts therefor; Regulation of expression
74Vectors or expression systems specially adapted for prokaryotic hosts other than E. coli, e.g. Lactobacillus, Micromonospora
75for Bacillus
C07K 14/43563
CCHEMISTRY; METALLURGY
07ORGANIC CHEMISTRY
KPEPTIDES
14Peptides having more than 20 amino acids; Gastrins; Somatostatins; Melanotropins; Derivatives thereof
435from animals; from humans
43504from invertebrates
43563from insects
Déposants Qiao Shiyan
Peking Sinagri Yin Thai Biotechnology Co. Ltd.
Zhu Faming
Guo Wenjiang
Inventeurs Qiao Shiyan
Zhu Faming
Guo Wenjiang
Mandataires Chen Yi
Novak Druce Connolly Bove + Quigg LLP
Données relatives à la priorité 200810132258.1 22.07.2008 CN
Titre
(EN) Secretion expression of antibiotic peptide CAD in Bacillus subtilis and expression system of recombination Bacillus subtilis
Abrégé
(EN)

The present invention relates to a method for expressing antimicrobial peptide CAD by means of a recombinant Bacillus subtilis expression system. The SUMO protease expression operon is first artificially synthesized. The protein expression operon genes of Saccharomyces cerevisiae small ubiquitin-related protein is then fused with the antibacterial peptide AD. The fusion protein is further cloned into the pNF11 plamid to be introduced into Bacillus subtilis, thereby ensuring the induced expression of recombined Bacillus subtilis in shake flasks. The method has the advantages of a simple expression system, large-scale production, low production cost, strong biological activity and no toxic or harmful substance production. Moreover, the method provides a medicine with low price and strong antibacterial capacity for clinic disease prevention and treatment. This invention can also be used as a feedstuff additive.


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