Korea Research Institute of Bioscience and Biotechnology

Chung Ang University Industry Academic Cooperation

Hye Yun Moon

Hyun Ah Kang

Sang Ki Rhee

Joo Hyung Heo

Eun Jung Kim

Doo Byoung Oh

Jeong Seok Park

Moo Woong Kim

Hong Jin Kim

Disclosed is a gene multiple insertion cassette set including rDNA NTS fragments and an auxotrophic selection marker having an incomplete promoter is developed, and a safe oral recombinant strain having no antibiotic resistant marker is constructed by multiple insertion of an optimum number of the developed gene multiple insertion cassette sets into chromosomes of astrain, a vaccine composition including, as an active ingredient, the above strain, a culture product thereof, a cell lysate, or nodavirus capsid protein (NNVcp) isolated and purified therefrom, and a composition for feed addition including, as an active ingredient, the above strain, a culture product thereof, a cell lysate, or squalene or oxidosqualene isolated and purified therefrom.

rDNA NTS-based gene multiple insertion cassette set and GRAS-grade recombinant yeast strain

The present invention relates to a process for producing a human-type glycoprotein having reduced glycosylation by genetically manipulating an enzyme involved in glycosylation using asystem. In detail, the present invention relates to a process for producing a human-type glycoprotein by identifying a dolichyl-phosphate-mannose dependent &#x3b1;-1,3-mannosyltransferase gene from, constructing amutant strain producing a glycoprotein exhibiting reduced glycosylation by disrupting the identified gene, and subjecting the mutant strain to various genetic manipulations for the synthesis of human-type glycan.

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The present invention relates to a process for producing a human-type glycoprotein having reduced glycosylation by genetically manipulating an enzyme involved in glycosylation using asystem. In detail, the present invention relates to a process for producing a human-type glycoprotein by identifying a dolichyl-phosphate-mannose dependent &#xa5;&#xe1;-1,3-mannosyltransferase gene from, constructing amutant strain producing a glycoprotein exhibiting reduced glycosylation by disrupting the identified gene, and subjecting the mutant strain to various genetic manipulations for the synthesis of human-type glycan.

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Daejeon, South Korea

Hye Yun Moon