Abstract: The present invention relates to a technique of preparing a vaccine composition from PCV2 isolated from a plant transformed with a chlorophyll-targeting recombinant vector for expression in plants and provides a recombinant vector carrying a polynucleotide coding for a recombinant protein in which a chlorophyll-targeting protein and a PCV2 capsid protein are fused to each other. In addition, provided are a transgenic plant transformed with the recombinant vector, a method for isolating and purifying a target protein from the transgenic plant, a method for preparing a vaccine composition containing virus-like particles by using same, and a vaccine composition prepared by the preparation method.

Abstract: The present invention relates to: a recombinant vector comprising a nucleotide sequence of antigen protein(s) Lectin, CD2v, p72, p54, p30, p15, p35, E199L, and/or F317L of an African swine fever virus; a transformant transformed by means of the recombinant vector; and a vaccine composition for preventing African swine fever, comprising, as an active ingredient, African swine fever virus antigen protein(s) Lectin, CD2v, p72, p54, p30, p15, p35, E199L, and/or F317L, isolated from the transformant; and the like.

Abstract: The present invention relates to a plant-based COVID-19 variant recombinant spike protein expression vector, and a recombinant protein using the expression vector, wherein a plant expression system is used such that the recombinant protein does not have the disadvantages of animal-derived recombinant proteins and exhibits an excellent SARS coronavirus 2 prevention and treatment effect, and thus can be effectively utilized as a safe composition for preventing and treating COVID-19.

Abstract: The present invention provides: a recombinant expression vector comprising a gene encoding a porcine parvovirus VP2 protein; a recombinant plant or a recombinant insect cell transformed with the vector; and a vaccine composition for a porcine parvovirus and a composition for diagnosing porcine parvovirus, both of which contain a porcine parvovirus VP2 protein obtained from the recombinant plant or the recombinant insect cell. When the recombinant plant or recombinant insect cell of the present invention is used, the porcine parvovirus antigenic protein can be produced with high efficiency, and the porcine parvovirus antigenic protein production method using the recombinant plant or recombinant insect cell has excellent safety and stability compared with other antigen production methods.

Abstract: The present invention relates to a technology for constructing and producing, in the form of virus-like particles (VLPs), alfalfa mosaic virus (AMV) isolated from a plant transformed using a recombinant vector for plant expression that is targeted to the chloroplast, and provides a recombinant vector comprising a polynucleotide encoding a recombinant protein in which a chloroplast-targeting protein and an AMV capsid protein are fused. The present invention also provides a transgenic plant transformed by the recombinant vector, a method for isolating and purifying a target protein from the transgenic plant, a method for producing virus-like particles using same, and the like.

Abstract: The present invention provides a recombinant expression vector comprising a gene encoding canine parvovirus 2a VP2 or 2b VP2 protein, a recombinant plant into which the vector is transformed, a vaccine composition against canine parvovirus, comprising canine parvovirus 2a VP2 or 2b VP2 protein obtained from the recombinant plant, and a composition for diagnosing canine parvovirus. When the recombinant plant of the present invention is used, canine parvovirus 2a VP2 or 2b VP2 antigen protein can be rapidly produced with high efficiency. Since the composition for diagnosing canine parvovirus according to the present invention uses a recombinant antigen protein, there is no possibility of contamination due to live virus handling, and thus the composition is safe, and the presence or absence of canine parvovirus infection can be rapidly diagnosed from a large amount of samples.

Abstract: Provided is a technique for highly expressing a target protein in a plant cell by using a glycosylation domain, a recombinant vector comprising a gene encoding a fusion protein of a glycosylation domain and a target protein, a recombinant cell, a transformed plant, and a method of producing a target protein using these.

Abstract: The present invention relates to a recombinant spike protein of the COVID-19 virus forming a trimer and a method for mass-producing the recombinant spike protein, and more specifically to a method for designing a recombinant gene expressing a recombinant spike protein of the COVID-19 virus forming a trimer for the purposes of enhancing immunogenicity and effective antigen delivery, and a method for mass-producing the recombinant spike protein in plants.

Abstract: The present invention relates to an influenza virus surface protein-derived recombinant hemagglutinin (HA) protein forming a trimer and use thereof, and more specifically to a recombinant vector for producing an influenza virus surface protein-derived HA protein forming a trimer, a transformant transformed by the recombinant vector, a method for producing an influenza virus surface protein-derived HA protein forming a trimer using the recombinant vector, an influenza virus surface protein-derived HA protein produced by the method, and the use thereof in preventing, ameliorating or treating influenza virus-infected disease.

Abstract: The present invention relates to a method for mass-producing a target protein in a plant and, more specifically, to a method for producing high levels of protein in plant leaf cells, in which an expression cassette construct for high expression of a target gene and an expression cassette construct for high expression of p38 as a gene silencing suppressor, are prepared, a binary vector for transient expression in plant cells, having the construct together, is then prepared, and the binary vector is then subjected to agrobacterium-mediated transformation by using a single agrobacterium culture.

Abstract: Provided is a swine fever antigen fused with a porcine Fc fragment, and more particularly, to a vaccine composition having an autoimmune-enhancing effect by binding the Fc fragment to a swine fever antigen, and a preparation method thereof.

Abstract: Provided is a recombinant vector including a new BiP gene fragment, and when a target protein is prepared using the recombinant vector of the subject matter, use stability can be enhanced and the production amount of target protein can also be increased by minimizing a foreign peptide sequence remaining in the target protein.

Abstract: Provided is a technique for highly expressing a target protein in a plant cell by using a glycosylation domain, a recombinant vector comprising a gene encoding a fusion protein of a glycosylation domain and a target protein, a recombinant cell, a transformed plant, and a method of producing a target protein using these.

Abstract: Provided is a technique for highly expressing a target protein in a plant cell by using a glycosylation domain, a recombinant vector comprising a gene encoding a fusion protein of a glycosylation domain and a target protein, a recombinant cell, a transformed plant, and a method of producing a target protein using these.

Abstract: Provided is a recombinant vector including a porcine Fc fragment. By fusing the porcine Fc fragment with various target proteins by using the recombinant vector of the present invention, not only target proteins may be expressed using various hosts including plants, but the productivity and stability of target proteins may also be increased.

Abstract: Provided is an antigen fused with a porcine Fc fragment, a vaccine composition having a self-adjuvanting effect by binding an Fc fragment to various antigens, and a method of producing the antigen.

Abstract: Provided is a technique for highly expressing a target protein in a plant cell by using a glycosylation domain, a recombinant vector comprising a gene encoding a fusion protein of a glycosylation domain and a target protein, a recombinant cell, a transformed plant, and a method of producing a target protein using these.

Abstract: Provided is a swine fever antigen fused with a porcine Fc fragment, and more particularly, to a vaccine composition having an autoimmune-enhancing effect by binding the Fc fragment to a swine fever antigen, and a preparation method thereof.

Abstract: Provided is a recombinant vector including a new BiP gene fragment, and when a target protein is prepared using the recombinant vector of the subject matter, use stability can be enhanced and the production amount of target protein can also be increased by minimizing a foreign peptide sequence remaining in the target protein.

Abstract: Provided is an antigen fused with a porcine Fc fragment, a vaccine composition having a self-adjuvanting effect by binding an Fc fragment to various antigens, and a method of producing the antigen.