Abstract:
PURPOSE: Provided is a preparation of infectious HCV-like particles which are characteristically used as antigens for the detection HCV vaccine or HCV antibodies and for the inspection or examination of infection inhibiting drugs. CONSTITUTION: The preparation of infectious HCV-like particles is characterized by using a recombinant alphavirus expression vector(KCCM-10287) and a helper vector(KCCM-10286) which express HCV core, E1 and E2.
Abstract:
PURPOSE: An Alphavirus expression vector capable of expressing a cancer-inhibiting protein, its producing method and its use are provided, thereby effectively inhibiting and preventing the growth of a cancer cell. CONSTITUTION: The Alphavirus expression vector capable of expressing a cancer-inhibiting protein contains a first cancer-inhibiting gene which is operably linked under operation of a first subgenomic promoter, a second cancer-inhibiting gene which is operably linked under operation of a second subgenomic promoter, and a third cancer-inhibiting gene which is operably linked under operation of a third subgenomic promoter, in which the cancer-inhibiting gene is selected from pRb/p110 or its homologue p107 and p120, p53 protein, p21 protein, p21 protein(WAF-1), bak, BRCA1, BRCA2, PTEN, APC, DCC, NF-1, NF-2, WT-1, MEN-I, MEN-II, zac1, p73, VHL, FCC and MCC; and the Alphavirus is Sindbis virus or Semliki Forest virus(SFV).
Abstract:
PURPOSE: Provided is HIV like particle which is composed of HIV-1 Gag, Env, Pol and/or Pro proteins expressed by an expression vector containing HIV-1 env, gag, pro, pol genes. The HIV like particle can be used as an antigen in a diagnosis kit of HIV infection and for HIV vaccine composition. CONSTITUTION: Alphavirus based expression vectors contain HIV-1 env, gag, pro and pol genes and they are as follows: pSFV/env-gag, pSFV/gag-env, pSFV/env-gag-pro, pSFV/env-gag-gagpro, pSFV/env-gag-gagΔpro, and pSFV/gagpol-env. The expression vectors further contains CTE(constitutive transport element) gene and they are as follows: pSFV/env-gag-gagpro-CTE, pSFV/env-gag-gagΔpro-CTE, pSFV/gagpol-env-MCTE, and pSF/gag-env-MCTE. HIV-like particle is manufactured by introducing one of the above vectors or its RNA transcript into an animal cell then expressing it.
Abstract:
PURPOSE: A novel microorganism which produces L-type poly gamma glutamic acid is provided to obtain the poly gamma glutamic acid used as a thickening agent, and biodegradable plastic solvent. CONSTITUTION: A novel microorganism, Bacillus megaterium Toha(KCTC 11752BP), produces L-type poly gamma glutamic acid. The strain is derived from a fermented food. The strain has 16S rDNA sequence of sequence number 1 and produces the poly gamma glutamic acid at low salinity. A probiotic composition contains Bacillus megaterium Toha (KCTC 11752BP) and the poly gamma glutamic acid.
Abstract:
A surface expression vector for fusion protein of Myo-2 peptide multimer and myostatin is provided to express the myostatin fusion protein on the surface of bacteria, and increase the blood antibody production, body weight and muscle amount of animals by orally administering the bacteria. A myostatin derived peptide Myo-2 has the amino acid sequence of SEQ ID NO:1. A Myo-2 peptide multimer is prepared by polymerizing 2-8 Myo-2 peptides. A fusion protein is prepared by fusing the Myo-2 peptide multimer with matured myostatin. A surface expression vector for fusion protein contains a gene encoding polygammaglutamic acid synthetase complex selected from pgsB(polygammaglutamic acid synthetase), pgsC and pgsA, the nucleotide sequence encoding the Myo-2 peptide multimer and a gene encoding the matured myostatin. A method for producing a fusion protein-surface expressed microorganism comprises the steps of: (a) expressing the fusion protein of myostatin derived peptide multimer and matured myostatin on the surface of microorganism by culturing a microorganism transformed with the surface expression vector; and (b) recovering the microorganism with surface expressed matured myostatin, wherein the microorganism is lactic acid bacterium. Further, the matured myostatin is be derived from mammal or birds.
Abstract:
PURPOSE: An Alphavirus expression vector capable of expressing a cancer-inhibiting protein, its producing method and its use are provided, thereby effectively inhibiting and preventing the growth of a cancer cell. CONSTITUTION: The Alphavirus expression vector capable of expressing a cancer-inhibiting protein contains a first cancer-inhibiting gene which is operably linked under operation of a first subgenomic promoter, a second cancer-inhibiting gene which is operably linked under operation of a second subgenomic promoter, and a third cancer-inhibiting gene which is operably linked under operation of a third subgenomic promoter, in which the cancer-inhibiting gene is selected from pRb/p110 or its homologue p107 and p120, p53 protein, p21 protein, p21 protein(WAF-1), bak, BRCA1, BRCA2, PTEN, APC, DCC, NF-1, NF-2, WT-1, MEN-I, MEN-II, zac1, p73, VHL, FCC and MCC; and the Alphavirus is Sindbis virus or Semliki Forest virus(SFV).