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    What is peptide?

      One amino acid with another amino acid carboxyl groups can be condensed into peptide amide formation in protein chemistry called peptide. The minimum molecular amino acid, protein, peptide bonds to form a plurality of peptide to form two or more amino acid dehydration condensation, multiple peptide multistage folding on the formation of a protein molecule. Proteins are sometimes called peptides". Two peptide (referred to as the two peptide), is composed of a protein fragment of two amino acids.
      There are two common peptide (Dipeptide), three peptide (Tripeptide), (Polypeptide), and peptide and 2~10 peptide (Oligo-peptide), which belongs to the oligopeptide 10~50 peptide belongs to the polypeptide, usually ten peptides below more medical and commercial availability.

    Application of peptides

      It can be divided into three categories: Medical polypeptide drugs, peptide antibiotics, vaccines, antibacterial peptides, small peptides, cosmetic for daily use, soybean peptides for food, corn peptides, yeast polypeptides, sea cucumber peptides.
      From the functional point of view, can be divided into antihypertensive peptides, antioxidant peptides, cholesterol lowering peptides, opioid peptides, high F oligo peptides, food flavor peptides, etc..
      Active peptides, which are closely related to nutrition, hormones, enzyme inhibition, regulation of immunity, antibacterial, antiviral, antioxidant. The polypeptide can be divided into three categories: polypeptide drugs and polypeptide health products. The traditional polypeptide drugs are mainly polypeptide hormones. In 2011, the development of peptide drugs has been developed in various fields of disease prevention and control, especially in the following areas.

    Antiviral peptide

      By binding to specific receptors on the host cell, the virus relies on its own specific protease for protein processing and nucleic acid replication. It is therefore possible to screen peptides that bind to the host cell receptor from the peptide library, or peptides that bind to active sites such as viral proteases, for antiviral therapy. In 2013, Canada, Italy and other countries have been screened from the peptide library with a lot of small peptides with disease resistance. June 2004 Chinese Academy of Sciences Institute of Microbiology of the news, the CAS knowledge innovation project "SARS coronavirus cell fusion mechanism and fusion inhibitor study" by the Chinese Academy of Sciences, Institute of Microbiology and Wuhan University Life Sciences modern virus research center have made major progress in cooperation. The experiment proved that HR2 peptide designed can efficiently inhibit the SARS virus infection on cell culture, effective inhibiting concentration in several Namore (nmole) concentrations, HR1 peptide synthesis and expression of viral infection and in vitro inhibition of HR1 and HR2 binding experiments also made important progress, prevent SARS virus fusion polypeptide drugs developed can prevent virus infection, to have been infected with the virus, the virus can be prevented in the further expansion of the body. The polypeptide medicine has double functions of prevention and treatment. Researchers at the center for cell engineering at The Fourth Military Medical University have synthesized 9 peptides that can effectively prevent and inhibit the invasion of SARS cells.
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