Abstract:
PURPOSE: Catechol type structural material of high value-added that produced by the catecholtype construction material manufacturing method is provided to be used as a bioactive substance for whitening agent, antioxidant, anticancer material and antiviral substance. CONSTITUTION: DNA having the DNA sequence of the sequence number 2 is provided to be used as a DNA coding the tyrosinase help protein. As a DNA coding the tyrosinase help protein, it provides DNA having the DNA sequence of sequence number 2 and the homogeny over 78%. As a DNA coding the tyrosinase help protein, it provides DNA having the DNA sequence of sequence number 4. As a DNA coding the tyrosinase help protein, it provides DNA having the DNA sequence of sequence number 4 and the homogeny over 78%. Tyrosinase help protein is developed by the DNA. A manufacturing method of catechol type structural material used the host cell converted into vector which has the DNA and the DNA coding tyrosinase as biocatalizer and converted the monophenol type structural material.
Abstract:
PURPOSE: A Staphylococcus hominis MBBL 2-9 strain is provided to ensure antibacterial activity to bacteria and to prevent gram positive/antibiotics resistant pathogen. CONSTITUTION: An antibacterial peptide hominicin which is isolated from Staphylococcus hominis MBBL 2-9 has an amino acid of sequence number 1. The antibacterial peptide is themal resistant, acid resistant, basic resistant, and non-cytotoxicity. The antibacterial peptide contains DmIle(N1, N1-dimethyl isoleucine), Dhb(dehydrobutyrine), and Dmp(N2, N2-dimethyl-1,2-propanediamine). A medicinal composition for preventing gram positive pathogen or antibiotics resistant pathogen contains the antibacterial peptide as an active ingredient.
Abstract:
PURPOSE: A method for identifying protein kinase substrate specificity using a peptide library is provided to rapidly determining the substrate specificity of a protein phosphatase, and to examine the role of the protein phosphatase. CONSTITUTION: A method for identifying protein kinase substrate specificity comprises the following steps: forming a peptide library with a constant amino acid sequence on the surface of a solid support resin; forming a hybrid with randomized peptide libraries by repeating the previous step; reacting the peptide libraries with a phosphatase for forming the peptide library with phosphorylated threonine or serine; reacting an antibody combined with a biotin with the phosphorylated peptide library; reacting the obtained product with neutravidin or streptavidin including phosphatase or peroxidase; detecting the change of properties by the reaction of the phosphatase or the peroxidase for selecting the solid support resin with transformed peptide libraries; and an analyzing the amino acid sequence of the peptide after separating the peptide from the resin.