• 제목/요약/키워드: expression vectors

검색결과 391건 처리시간 0.029초

p53 암억제 유전자가 삽입된 재조합 pOPINEneo-3C-GFP 벡터의 효율 분석 (Analysis of Efficiency of Recombinant pOPINEneo-3C-GFP Vector with p53 Tumor Suppression Gene Inserted)

  • 사영희;최창식;이기환;홍성갑
    • 한국정보통신학회:학술대회논문집
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    • 한국정보통신학회 2019년도 춘계학술대회
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    • pp.533-536
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    • 2019
  • 재조합 배큘로 바이러스는 배양 된 곤충 세포에서 이종 유전자를 발현하는데 널리 사용된다. 재조합 배큘로 바이러스는 광범위한 포유류 세포 유형에서 재조합 단백질의 발현을위한 유전자 전달 벡터로서 작용할 수있다. 바큘로 바이러스 시스템은 안전성, 대규모 및 높은 수준의 유전자 발현 관점에서 중요한 이점을 갖는다. 본 연구에서는 pOPINEneo-3C-GFP 벡터로부터 재구성 된 바큘로 바이러스 벡터를 사이토 메갈로 바이러스 (CMV) 프로모터, 강화 된 녹색 형광 단백질 (EGFP) 및 p53과 NcoI 및 XhoI로 재조합시켰다. 이러한 재조합 벡터를 다양한 세포 및 세포주에 감염시켰다. 이와 같이 개발 된 바큘로 바이러스 벡터는 재조합 유전자의 전이 및 발현을 통상적 인 벡터와 비교하여 분석 하였다. 이러한 결과는 바큘로 바이러스 벡터가 대조군 벡터보다 전이 및 전이에서 더 높은 효율을 갖는다는 것을 시사한다. 본 연구는 과학 기술부, 한국 정보 기술 진흥 기금 (MSIP)이 후원하는 한국 연구 재단(NRF)을 통해 중견 연구원 프로그램 (NRF-2016R1A2B4016552)을 통해 지원되었다.

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Embodied Approach to the Concept of Vector and its Application

  • Cho, Han Hyuk;Noh, Chang Kyun;Choi, In Yong
    • 한국수학교육학회지시리즈D:수학교육연구
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    • 제18권4호
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    • pp.289-305
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    • 2014
  • The current mathematical education calls for a learning environment from the constructionism perspective that actively creates mathematical objects. This research first analyzes JavaMAL's expression 'move' that enables students to express the agent's behavior constructively before they learn vector as a formal concept. Since expression 'move' is based on a coordinate, it naturally corresponds with the expression of vectors used in school mathematics and lets students take an embodied approach to the concept of vector. Furthermore, as a design tool, expression 'move' can be used in various activities that include vector structure. This research studies the educational significance entailed in JavaMAL's expression 'move'.

제브라피쉬 interferon regulatory factor 10의 주사에 따른 면역 유전자 발현과 VHSV에 대한 방어 효과 (Immune gene expression and protection effect against VHSV by injection of interferon regulatory factor 10 in zebrafish (Danio rerio))

  • 김혜지;김진영;박종빈;이지현;박정수;김형준;권세련
    • 한국어병학회지
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    • 제34권1호
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    • pp.23-29
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    • 2021
  • Interferon regulatory factors (IRFs) are a family of transcription factors essential to the control of antiviral immune response, cell growth, differentiation and apoptosis. IRF10 of zebrafish (Danio rerio) was negative regulation of the interferonΦ1 and 3 response in vitro. In this study, we analyze the induction of in vivo immune response activation from the IRF10 gene of zebrafish and the protective effect against VHSV. As the results, the group inoculated with IRF10 expression vectors, there was no expression of IFNΦ1, suggestion that IRF10 may function as a negative regulator of IRF3, which binds to the IFNΦ1 promoter. And other types of interferon genes (IFNΦ2-4) are thought to have been activated, inducing to the expression of pro-inflammatory cytokine and Mx genes. As the results of challenge test performed at 14 days after inoculation of the expression vectors, the maximum survival rate [50% (1㎍ DNA) and 42.5% (10㎍ DNA)] for IRF10 group were recorded. Meanwhile, the survival rates of pcDNA3.1 and PBS as the control groups were 10% and 15%, respectively. This study suggests that the possibility that activation of IRF10 molecule could be exploited as a VHS control method.

Saccharomyces cerevisiae를 이용한 온도조절형 발현 Vector의 개발 (Construction of a Temperature Controlled Expression Ve e tor in Saccharumy ces cerevisiae)

  • 최진옥;황용일
    • 한국미생물·생명공학회지
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    • 제21권3호
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    • pp.214-220
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    • 1993
  • The mating type a of yeast, Saccharomyces cerevisiae mutant with hmla2-102 and sir3-8ts was changed to type alpha by changing the growth temperature from 25C to 35C. A temperature-sensitive expression vector system was constructed using mating factor alpha1 (Mfalpha1) gene encoding alpha factor which is expressed in the type alpha cells. Vectors with different copy numbers were constructed by joining the promoter and pre or prepro-secretion single sequence of Mfalpha1 to promoterless PHO5' gene as a reporter gene.

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A plasmid vector faciliting gene expression in both yeast and mammalian cells

  • Lee, Tae-Ho
    • Journal of Microbiology
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    • 제35권2호
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    • pp.149-151
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    • 1997
  • A plasmid vector with combined features of yeast shuttle vector and mammalian expression vector was constructed to facilitate expression of cloned gene in both cell-types. All necessary elements required for plasmid maintenance and selection in E. coli, yeast and mammalian cells were size-economically arranged in this plasmid. The numan cytomegalovirus (CMV) immediate early promoter and yeast GAL1 promoter were sequentially placed in front of the gene to be expressed. The synthetic splicing donor and acceptor sequences were inserted into the immediate upstream and downstream of the GAL1 promotor, allowing the CMV promotor to direct the expression of a given gene in mammalian cell environment by splicing out the interfering GAL1 promotor sequence. When the resulting vector containing LacZ as a gene was introduced into yeast and mammalian cells, both cells efficiently produced .betha.-galactosidase, dimonstrating its dual host usage.

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Maltose Binding Protein 융합단백질에 의한 인간유래의 앤지오스타틴과 앤도스타틴의 대장균에서 수용성 단백질발현 (Soluble Expression of Human Angiostatin and Endostatin by Maltose Binding Protein (MBP) Fusion in E. coli)

  • 박선열;최신건
    • 산업기술연구
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    • 제28권B호
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    • pp.59-63
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    • 2008
  • Rapid production of therapeutic proteins such as angiostatin and endostatin angiogenic inhibititors has been highly demanded for cancer treatment. In this regard, recombinant human angiostatin and endostatin were successfully expressed as soluble forms by maltose binding protein (MBP)-mediated fusion expression in Escherichia coli. PCR amplified, angiostatin and endostatin genes from human placenta cDNA library were inserted into an expression vector pMAL-c2e to construct prokaryotic expression vectors, pMAL-c2e/AS and pMAL-c2e/ES, respectively. Recombinant angiostatin and endostatin were efficiently expressed in E. coli origami (DE3) after IPTG induction and protein expression were confirmed by SDS-PAGE analyses. The expressed recombinant proteins were purified near homogenity using an amylose affinty column chromatography. In contrast that previous E. coli expressions were all insoluble, our results first time demonstrated that MBP fused human angiostatin and endostatin were soluble in E. coli.

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대장균에서 사람의 면역결핍 바이러스-1 epitopes 클로닝과 발현에 대한 연구 (Cloning and Expression of Human Immunodeficiency Virus-1 Epitopes in Escherichia coli)

  • 유향숙;장원희;박희동;현상원;남상욱;이영익
    • 미생물학회지
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    • 제29권1호
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    • pp.1-7
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    • 1991
  • Human immunodeficiency virus type 1 (HIV-1) causes a deadly infectious disease, Acquired Immunodeficiency Syndrome (ADIS). As a first step to develop a reliable and fast diagnostic procedure for HIV-1 infection, we cloned various immunodominant epitopes of HIV-1 in bacterial expression vectors containing tac or trp promoter. While the protein level of direct expression of gp160 was low, trp E fused gp120, gp41 and p17-p24 were produced at high levels (15-30% of total bacterial proteins) in E. coli. Since gp120 and gp41 contain relatively conserved regions which can react with antibodies in the plasma from most of HIV-1 infected individuals, these expression clones were used for large preparations of HIV-1 antigens.

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