摘要:
Herein is reported a method for determining the binding affinity of the binding sites of a bivalent full length antibody of the human IgG1 subclass to a homo-multimeric antigen comprising the steps of i) incubating a mixture comprising the antibody and a polypeptide that is derived from lysine-gingipain of porphyromonas gingivalis at a pH of from pH 7.5 to pH 8.5, in the presence of a reducing agent, at a temperature of from 30° C. to 42° C., for time of from 10 min. to 240 min. to cleave the antibody into Fabs and Fc-region, and ii) determining the binding affinity of the Fabs of the antibody for its antigen using a surface plasmon resonance method by directly applying the incubated reaction mixture obtained in the previous step in the surface plasmon resonance method and therewith determining the binding affinity of the binding sites of the bivalent full length antibody of the human IgG1 subclass.
摘要:
The present invention provides antigens, for use in the treatment or prevention of C. burnetii infection. Also provided are nucleic acids encoding such antigens, and antibodies raised against such antigens.
摘要:
Provided are a novel antibiotic preparation method and platform system based on the method, belonging to a novel drug development method. The method is based on a fixed structural formula: F-R, wherein F is an effect area, and R is an identification area. At the prior art level, the present invention can quickly develop a specific novel antibiotic for most pathogenic microorganisms or biological cells. Also provided is a platform for implementing the method, ensuring that the novel antibiotic is developed in an efficient streamlined process.
摘要:
An agent for use in a vaccine therapy to prevent or treat a Burkholderia infection in a mammal, wherein the agent is selected from a polypeptide of SEQUENCE ID NO:1, or a therapeutically effective variant thereof having at least 90% sequence identity with SEQUENCE ID NO: 1; a polypeptide of SEQUENCE ID NO:3, or a therapeutically effective variant thereof having at least 90% sequence identity with SEQUENCE ID NO: 3; and an immunogenic portion of the polypeptides of SEQUENCE ID NO:1 or SEQUENCE ID NO:3.
摘要:
Provided are a novel antibiotic preparation method and platform system based on the method, belonging to a novel drug development method. The method is based on a fixed structural formula: F-R, wherein F is an effect area, and R is an identification area. At the prior art level, the present invention can quickly develop a specific novel antibiotic for most pathogenic microorganisms or biological cells. Also provided is a platform for implementing the method, ensuring that the novel antibiotic is developed in an efficient streamlined process.
摘要:
A composition comprising intact killed bacterial cells that contain a therapeutic nucleic acid, a drug or a functional nucleic acid is useful for targeted delivery to mammalian cells. The targeted delivery optionally employs bispecific ligands, comprising a first arm that carries specificity for a killed bacterial cell surface structure and a second arm that carries specificity for a mammalian cell surface receptor, to target killed bacterial cells to specific mammalian cells and to cause endocytosis of the killed bacterial cells by the mammalian cells. Alternatively, the delivery method exploits the natural ability of phagocytic mammalian cells to engulf killed bacterial cells without the use of bispecific ligands.
摘要:
Herein is reported a fusion polypeptide according to formula (I): NH2—S2—X1—S1—COOH, wherein X1 comprises either a random amino acid sequence or an amino acid sequence derived from a first polypeptide, S2 and S1 are non-overlapping amino acid sequences derived from a second polypeptide, and denotes a peptide bond, wherein the second polypeptide is a polypeptide with peptidyl-prolyl cis/trans-isomerase activity (PPIase activity) or is derived from the FKBP-fold domain family, wherein X1 is inserted in place of the insert-in-flap-domain of the second polypeptide.