摘要:
Autonomously replicating sequences(ARS), glyceraldehyde-3-phosphate dehydrogenase(GAPDH) gene and GAPDH promoter derived from Hansenula polymorpha DL-1(ATCC 26012); a vector for H. polymorpha which contains the novel ARS and is capable of inserting tandem repeating multiple copies of a polynucleotide encoding a foreign protein to the chromosome of H. polymorpha; a process for the production of a foreign protein in H. polymorpha by employing said vector; and a method for the selection of transformed H. polymorpha having multiple copies of integrated foreign genes.
摘要:
The present invention is directed to a recombinant vector for transforming yeast and a process for transforming yeast thereby, more particularly to a recombinant vector comprising a gene encoding a mutated L41 protein having cycloheximide-resistant activity and a ribosomal DNA. The recombinant vector and the process for transforming thereby of the present invention is applicable to the efficient and stable integration of desired foreign DNA into yeast genome, thus providing useful tools for the production of a natural pigment, astaxanthin.
摘要:
Disclosed are a method for rapid screening suitable translational fusion partners (TFPs) capable of inducing expression or secretory production of non-producible proteins, which are difficult to produce in conventional recombinant production methods, from a variety of genetic sources, and protein secretion-inducing TFPs obtained using the method.
摘要:
Disclosed are a method for rapid screening suitable translational fusion partners (TFPs) capable of inducing expression or secretory production of non-producible proteins, which are difficult to produce in conventional recombinant production methods, from a variety of genetic sources, and protein secretion-inducing TFPs obtained using the method.
摘要:
The invention relates to techniques for the rapid screening of suitable translational fusion partners (TFPs) capable of inducing secretory production of recombinant proteins, especially proteins that are difficult to produce using conventional recombinant production methods.
摘要:
The present invention relates to a method for screening of the lipase having improved enzymatic activity using yeast surface display vector and the mutant lipase prepared by the same, more particularly to the method comprising; 1) cloning lipase gene into surface display vector, 2) preparing mutant lipase gene library of the step 1 by mutagenic PCR, 3) transforming the mutant lipase gene library of the step 2 and surface display vector into host cell, and 4) measuring the activity of the mutant lipase displayed in the surface of the transformed host cell and selecting the mutant lipase prepared by the same. The method of the present invention can screen the lipase having improved enzymatic activity. So, it can effectively be used for the various fields, such as food and detergent industry.
摘要:
The present invention provides novel cell wall anchor proteins derived from yeast, genes thereof and the genetic method for tethering polypeptide to the yeast cell wall using the same. Particularly, the present invention provides the novel GPI (glycosyl phosphatidyl inositol)-anchor protein genes, SFD1, GAS1, TIP1 and CWP1, and their proteins, PIR2 cell wall protein gene and its protein derived from Hansenula polymorpha, and the cell surface expression system using them which immobilize foreign enzymes or polypeptides on the cell wall of a microbial cell. In addition, the present invention provides the cell surface expression system using WSC1 gene and its protein derived from yeasts, including Hansenula polymorpha and Saccharomyces cerevisiae, and STA1 gene and its protein derived from Saccharomyces diastaticus. The cell surface expression system of the present invention expects an immobilization effect as biocatalysts by adhereing a desired protein to the cell surface, and provides a means of altering target protein characteristics such as binding affinity and stability by library screening.
摘要:
The present invention relates to a method for screening of the lipase having improved enzymatic activity using yeast surface display vector and the mutant lipase prepared by the same, more particularly to the method comprising; 1) cloning lipase gene into surface display vector, 2) preparing mutant lipase gene library of the step 1 by mutagenic PCR, 3) transforming the mutant lipase gene library of the step 2 and surface display vector into host cell, and 4) measuring the activity of the mutant lipase displayed in the surface of the transformed host cell and selecting the mutant lipase prepared by the same. The method of the present invention can screen the lipase having improved enzymatic activity. So, it can effectively be used for the various fields, such as food and detergent industry.
摘要:
The invention relates to techniques for the rapid screening of suitable translational fusion partners (TFPs) capable of inducing secretory production of recombinant proteins, especially proteins that are difficult to produce using conventional recombinant production methods.
摘要:
The present invention relates techniques for identifying suitable secretion fusion partner (SFP) for hyper-secretory production of recombinant proteins. The SFPs can be obtained from secretome analyzes. Recombinant proteins are produced in a fusion form with a secretion fusion partner (SFP) and can be separated from the SFP by in vitro protease treatment. SFPs of this invention greatly improve the secretion level of target proteins and peptides which are valuable for bio-pharmaceuticals and the bio-industry.