摘要:
A method for selecting novel proteins such as growth hormone and antibody fragment variants having altered binding properties for their respective receptor molecules is provided. The method comprises fusing a gene encoding a protein of interest to the carboxy terminal domain of the gene III coat protein of the filamentous phage M13. The gene fusion is mutated to form a library of structurally related fusion proteins that are expressed in low quantity on the surface of a phagemid particle. Biological selection and screening are employed to identify novel ligands useful as drug candidates. Disclosed are preferred phagemid expression vectors and selected human growth hormone variants.
摘要:
A system is for analyzing expression levels and activity of a plurality of proteins is provided. A bio-displayed polypeptide binding component associated with a predetermined marker is used to bind the proteins of interest. The predetermined marker components are then amplified and detected in a high throughput manner.
摘要:
Bacteriophages are employed as agents for recognition and identification of molecules and cellular materials, using their ability to recognize their bacterial host, by coating them with antibodies or by selecting them to perform in a manner analogous to antibodies. Visibility for identification is effected by incorporating a fluorescent agent, a radioisotope, a metal, an enzyme, or other staining material. The bacteriophage are prepared so as to bind to the molecular or cellular material through either the tail or head segment of the bacteriophage.
摘要:
The present invention provides a relatively accurate, rapid and economical method of screening a patient for the presence of inflammatory diseases such as an intraamniotic infection, bacterial meningitis and the sexually transmitted diseases; gonorrhea, chlamydia and trichomoniasis. The method of the present invention involves measuring the concentration of neutrophil defensins HNP1-3 and the concentration of lactoferrin, found in a bodily fluid, tissue or a combination thereof, adding these two concentrations together to yield a summed total, and correlating the measured summed total to known summed totals to give an indication of whether the patient is at risk of suffering from inflammatory diseases such as an intraamniotic infection, bacterial meningitis or the sexually transmitted diseases; gonorrhea, chlamydia and trichomoniasis.
摘要:
A method for selecting novel proteins such as growth hormone and antibody fragment variants having altered binding properties for their respective receptor molecules is provided. The method comprises fusing a gene encoding a protein of interest to the carboxy terminal domain of the gene III coat protein of the filamentous phage M13. The gene fusion is mutated to form a library of structurally related fusion proteins that are expressed in low quantity on the surface of a phagemid particle. Biological selection and screening are employed to identify novel ligands useful as drug candidates. Disclosed are preferred phagemid expression vectors and selected human growth hormone variants.
摘要:
THE NOVEL CONJUGATES ARE PREPARED BY USING BIFUNCTIONAL MOLECULES AS LINKING AGENTS. THE CONJUGATES WHICH SURVIVE THE COUPLING PROCESS CAN BE USED FOR DETECTING AND DETERMINING QUANTITATIVELT VERY SMALL QUANTITIES OF ANTI-PROTEIN ANTIBODIES. QUANTITIES AS LITTLE AS 0.2 TO 2.0 NANOGRAMS PER MILLILITER OF ANTISERUM CAN BE DETACTED. INSULIN-BACTERIOPHAGE CONJUGATE WAS INACTIVATED TO A SIGNIFICANT EXTENT BY SERA OF DIABETIC PATIENTS WHO HAS RECEIVED INJECTIONS OF INSULIN, WHICH WAS DILUTED A HUNDRED TO TEN-THOUSAND FOLD. THE INACTIVATION OF PROTEIN-BACTERIOPHAGE CONJUGATES BY THE CORRESPONDING ANTI-PROTEIN CAN BE INHIBITED BY THE ADDITION OF PREDETERMINED QUANTITIES OF THE SAID PROTEIN AND THIS INHIBITION CAN BE USED FOR THE DETERMINATION OF VERY SMALL QUANTITIES OF THE PROTEIN.
摘要:
A method for selecting novel proteins such as growth hormone and antibody fragment variants having altered binding properties for their respective receptor molecules is provided. The method comprises fusing a gene encoding a protein of interest to the carboxy terminal domain of the gene III coat protein of the filamentous phage M13. The gene fusion is mutated to form a library of structurally related fusion proteins that are expressed in low quantity on the surface of a phagemid particle. Biological selection and screening are employed to identify novel ligands useful as drug candidates. Disclosed are preferred phagemid expression vectors and selected human growth hormone variants.
摘要:
A method for selecting novel proteins such as growth hormone and antibody fragment variants having altered binding properties for their respective receptor molecules is provided. The method comprises fusing a gene encoding a protein of interest to the carboxy terminal domain of the gene III coat protein of the filamentous phage M13. The gene fusion is mutated to form a library of structurally related fusion proteins that are expressed in low quantity on the surface of a phagemid particle. Biological selection and screening are employed to identify novel ligands useful as drug candidates. Disclosed are preferred phagemid expression vectors and selected human growth hormone variants.
摘要:
The present invention relates to a method for the selective purification of bacterial cells and/or cell components, whereby the purification is performed by means of a solid support.
摘要:
A method for selecting novel proteins such as growth hormone and antibody fragment variants having altered binding properties for their respective receptor molecules is provided. The method comprises fusing a gene encoding a protein of interest to the carboxy terminal domain of the gene III coat protein of the filamentous phage M13. The gene fusion is mutated to form a library of structurally related fusion proteins that are expressed in low quantity on the surface of a phagemid particle. Biological selection and screening are employed to identify novel ligands useful as drug candidates. Disclosed are preferred phagemid expression vectors and selected human growth hormone variants.