Recombined T4 bacteriophage of expressing cholecystokinin gene
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- SOUTH CHINA AGRI UNIV
- Publication Date
- 2005-10-26
- Estimated Expiration
- Not applicable · inactive patent
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Abstract
Description
technical field
[0001] The present invention relates to the characteristics and application of recombinant T4 phage expressing cholecystokinin gene. The present invention further relates to the active immunization technology and application of recombinant T4 phage to animals such as pigs, rabbits, cattle, chickens, ducks and geese. Background technique
[0002] Cholecystokinin (CCK) is an effective factor regulating animal feed intake. Cholecystokinin, also known as cholecystokinin or trypsin, is a polypeptide hormone secreted by I cells of the small intestinal mucosa. The precursor of CCK is 130 amino acids, which are gradually decomposed into small molecules of CCK. The CCKs discovered so far include CCK-83, CCK-58, CCK-39, CCK-33, CCK-12, CCK-8 and CCK-4. Its distinct sites are mainly at the carboxy-terminus, but extend in length at the amino-terminus. The postprandial plasma mainly contains macromolecular CCK, including CCK-58, CCK-39, CCK-33 and CCK-12. These macrom...