摘要:
PROBLEM TO BE SOLVED: To provide wild type and mutant membrane type serine protease-1 (MT-SP1) polypeptides that cleave VEGF or VEGF receptor, which is known to be involved in angiogenesis.SOLUTION: The invention provides mutant MT-SP1 proteases with altered specificity for target molecules to be cleaved can cleave VEGF or VEGFR at certain substrate sequences with wild-type and mutant MT-SP1 proteases. The invention also provides a method for treating pathologies associated with angiogenesis, such as cancer, using the proteases.
摘要:
PROBLEM TO BE SOLVED: To provide generating and screening methods of a novel protease capable of cutting a protein known as responsible for a disease.SOLUTION: The method for identifying the protease capable of cutting a substrate sequence includes: a process of generating the library of a protease sequence; a process of each member of the library having a protease backbone having N number of mutations against a wild type backbone sequence; a process of measuring the activity of each member of the library when the substrate sequence is cut; a process of comparing the activity of each member with an average activity of the library; and a process of identifying the protease having the highest cleaving activity, wherein N is a positive integer.
摘要:
Methods for identifying modified proteases with modified substrate specificity or other properties are provided. The methods screen candidate and modified proteases by contacting them with a substrate, such as a serpin, an alpha macro globulins or a p35 family protein or modified serpins and modified p35 family members or modified alpha macroglobulins, that, upon cleavage of the substrate, traps the protease by forming a stable complex. Also provided are modified proteases
摘要:
PROBLEM TO BE SOLVED: To provide methods of generating and screening proteases, which are enzymes that cleave substrate sequences. SOLUTION: The method of identifying protease includes: the step for producing a library of proteases, wherein each member of the library has a protease skeleton having mutations of N to the wild type skeleton sequence; the step for measuring activity of each member of the library when cleaving the substrate sequence; and the step for comparing the activity of each member to the average activity of the library and for identifying which protease has highest cleaving activity. COPYRIGHT: (C)2010,JPO&INPIT