中国医科大学学报
中國醫科大學學報
중국의과대학학보
JOURNAL OF CHINA MEDICAL UNIVERSITY
2010年
9期
706-709
,共4页
翟永贞%周言%马力%冯国和
翟永貞%週言%馬力%馮國和
적영정%주언%마력%풍국화
脑炎病毒%日本%病毒蛋白质类%粒细胞-巨噬细胞集落刺激因子%CHO细胞
腦炎病毒%日本%病毒蛋白質類%粒細胞-巨噬細胞集落刺激因子%CHO細胞
뇌염병독%일본%병독단백질류%립세포-거서세포집락자격인자%CHO세포
encephalitis virus,Japanese%viral proteins%granulocyte-macrophage colony-stimulating factor%CHO cell
目的构建乙脑病毒prME蛋白与鼠GM-CSF融合基因重组子并建立稳定细胞表达株。方法套式-RT—PCR法从BALB/c鼠脾组织获取GM+CSF编码基因,用限制性内切酶从含乙脑病毒wME蛋白基因重组子获取prME蛋白基因,定向克隆至同-真核表达载体pcDNA3.1(+)不同酶切位点,构建重纽子pJME/GM—CSF并经酶切及DNA测序分析。脂质体法将pJME/GM—CSF转染中华仓鼠卵巢(CHO)N胞。Western blot法检测转染的CHO细胞中融合蛋白表达。结果pJME/GM—CSF经BamHI/EcoRI和BamHI/NotI酶切释出的插入子片段(2001bp、2472bp)分别与预期结果相符合。所编码的融合蛋白相对分子量(Mr)为85×103。结论pJME/GM-CSF成功构建,转染的CHO细胞可稳定表达融合蛋白。
目的構建乙腦病毒prME蛋白與鼠GM-CSF融閤基因重組子併建立穩定細胞錶達株。方法套式-RT—PCR法從BALB/c鼠脾組織穫取GM+CSF編碼基因,用限製性內切酶從含乙腦病毒wME蛋白基因重組子穫取prME蛋白基因,定嚮剋隆至同-真覈錶達載體pcDNA3.1(+)不同酶切位點,構建重紐子pJME/GM—CSF併經酶切及DNA測序分析。脂質體法將pJME/GM—CSF轉染中華倉鼠卵巢(CHO)N胞。Western blot法檢測轉染的CHO細胞中融閤蛋白錶達。結果pJME/GM—CSF經BamHI/EcoRI和BamHI/NotI酶切釋齣的插入子片段(2001bp、2472bp)分彆與預期結果相符閤。所編碼的融閤蛋白相對分子量(Mr)為85×103。結論pJME/GM-CSF成功構建,轉染的CHO細胞可穩定錶達融閤蛋白。
목적구건을뇌병독prME단백여서GM-CSF융합기인중조자병건립은정세포표체주。방법투식-RT—PCR법종BALB/c서비조직획취GM+CSF편마기인,용한제성내절매종함을뇌병독wME단백기인중조자획취prME단백기인,정향극륭지동-진핵표체재체pcDNA3.1(+)불동매절위점,구건중뉴자pJME/GM—CSF병경매절급DNA측서분석。지질체법장pJME/GM—CSF전염중화창서란소(CHO)N포。Western blot법검측전염적CHO세포중융합단백표체。결과pJME/GM—CSF경BamHI/EcoRI화BamHI/NotI매절석출적삽입자편단(2001bp、2472bp)분별여예기결과상부합。소편마적융합단백상대분자량(Mr)위85×103。결론pJME/GM-CSF성공구건,전염적CHO세포가은정표체융합단백。
Objective Construction and expression of recombinant plasmid fusing encoding prME protein derived from Japanese encephalitis virus (JEV) and GM-CSF of BALB/c mouse. Methods GM-CSF gene was ampli/ied by nested-RT-PCR from BALB/c spleen cells. JEV prME protein gene was eluted by the digestion with restrict/on endonucleases BamH I/EcoR I from pJME piasmid. Genetic fusion of prME protein and GM-CSF are subcloned info pcDNA3.1 (+) eukaryotic vector, and named as pJME/GM-CSF.The recombinant was confirmed by restriction enzymes digestion and DNA sequencing, and then transfected into China hamster ovary (CHO) cells by Lipofectamine2000. pJME/ GM-CSF expression in CHO cells was examined by Western blot. Results We observed 2001 bp and 2472 bp DNA fragments when pJME/GM-CSF was digested with BamHI/EcoRI and BamHI/NotI respectively as expected. The estimated molecular weight of the fusion protein was 85kD. Conclusion The recombinant pJME/GM-CSF was constructed and transfected into CHO cells successfully with pJME/GMCSF stably expressed.