METHOD FOR PRODUCING HIRUDIN

摘要

The hirudin expression vector pYEGa-HIR5 (KCTC 8518P) containing hirudin gene (I) consists of linked promoter GAL1-GAL10, alpha factor of yeasts (a on plasmid means alpha), peptide sequence for leu-asp-lys-arg which is hydrolyzed by KEX2 as operator endopeptidase and hirudin gene. The other plasmid pYEGa-HIR525 (KCTC 8519BP) (II) consists of GAL10 as promoter rather than GAL1-GAL10 of (I). (I) and (II) are useful for yeast expression to solve the problems which in E. coli the expressed hirudin is hydrolysed and the N-terminal methionine modified hirudin does not have the activity.