学科分类
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5 个结果
  • 简介:本刊已与北京万方数据股份有限公司签署了DOI(数字对象惟一标识符)授权书,从2012年第2期起,本刊对出版的每一篇论文都标注DOI编码(位置在篇首页文题左上角),万方数据公司为本刊出版的论文提供DOI编码的注册、解析及链接服务。

  • 标签: 《生物安全学报》 期刊 编辑工作 发行工作
  • 简介:应《中国真菌学杂志》主编温海教授的邀请,国际著名医学真菌学研究专家、隐球菌与隐球菌病研究领域的先驱和权威、美国国立卫生研究院(NIH)分子微生物学实验室主任K.J.Kwon-Chung教授于2006年6月2日来到上海,在上海长征医院就隐球菌病的基础和临床研究进行了专题学术交流。K.J.Kwon-Chung教授是国际知名的隐球菌研究专家,在Science,PNAS上均有多篇论文发表,发表SCI论文近200篇。

  • 标签: 美国国立卫生研究院(NIH) 教授 分子微生物学 论文发表 实验室主任 学术交流
  • 简介:目的:从中国南海芋螺中克隆新的J超家族芋螺毒素,并进行序列和进化分析。方法:以芋螺毒腺管总RNA为模板,采用3′-RACE及巢式PCR的方法扩增J超家族芋螺毒素基因,并将得到的目的基因与pMD18-T载体连接并转化大肠杆菌DH5α,经测序比对后,获得新的J超家族毒素,利用软件BioEdit、ClustalX及Mega5.05进行进化分析。结果:获得12个新的J超家族芋螺毒素前体肽序列,其氨基酸组成具有新颖性,在进化树上与已报道的J超家族毒素处于不同的进化分支。结论:12个新的J超家族毒素与已报道的毒素序列之间的同源性较低,是J超家族新成员。

  • 标签: 芋螺毒素 J超家族 基因克隆 进化分析
  • 简介:Amurinemacrophage-likecelllineJ774,acquired,inresponsetoLPS,anabilitytokilltumornecrosisfactor(TNF)-insensitivetargetP815mastocytomacellswhereasanothercellline,P388D1didnot,LPStriggeredsignalingmechanismsbetweenthetwocelllineswerecomparedwithanaimtoinquireaboutthepossiblenatureoftheabove-mentioneddifference,TheresultswhowedthattwocelllinesrespondtoLPS-treatmentbyparallelactivationofbothphospholipasesCandA2(PLCandPLA2)toapproximatelythesameextent.ThemaximumresponseoftothenzymesofJ774cellswasnotedwithin10minthetreatmentwhereasthatofP388D1cellsrequiredmorethan20min,TheotherpropertiesofLPS-responsiveenzymesstudiedweresimilarbetweentwocelllines,includingActivationofPLCandPLA2andPKCinmacrophagesbyLPS.Ca2+augmentationofenzymeactivation,participationofguaninenucleotidebinding(G)proteinsintheinitialactivationpreocesses,andinhibitionofenzymeactivationbythepriortreatmentofcellswithcholeraorpertussistoxinsetc.Moreover,LPS-triggeredactivationofPLCandPLA2wasfoundtobefollowedbytheincreaseofPKCactivitiesinbothcelllines.Inspiteofthesesimilarities.J774cellspossessedbothbasicandacidicformsofPKCactivities,whileP388D1cellsownedonlyPKCofbasicform,Nevertheless,thequestionwhyJ774cellsbutnotP388D1cells,canacquirethetumoricidalactivity,aganistP815,cellsfollowingLPStreatmentrematinstobeanswered.

  • 标签: 鼠巨噬细胞细胞系 磷脂酶A2 磷脂酶C 蛋白激酶C LPS诱导激活
  • 简介:Amurinemacrophage-likecellline,J774,acquried,inresponsetoLPS,anabilitytokilltumornecrosisfactor(TNF)-insensitivetargetP815mastocytomacells,whereasanothercellline,P388D1,didnot.LPS-triggeredsignalingmechanismsbetweenthetwocelllineswerecomparedwithanaimtoinquireaboutthepossiblenatureoftheabove-mentioneddifference.TheresultsshowedthattwocelllinesrespondtoLPS-treatmentbyparallelactivationofbothphospholipasesCandA2(PLCandPLA2)toapproximatelythesameextent.ThemaximumresponseofbothenzymesofJ774cellswasnotedwithin10minofthetreatment,whereasthatofP388D1cellsrequiredmorethan20min.TheotherpropertiesofLPS-responsiveenzymesstudiedweresimilarbetweentwocelllines,ineludingActivationofPLCandPLA2andPKCinmacrophagesbyLPSCa2+augmentationofenzymeactivation,participationofguaninenucleotidebinding(G)proteinsintheinitialactivationprocesses,andinhibitionofenzymeactivationbythepriortreatmentofcellswithcholeraorpartussistoxinsetc.Moreover,LPS-triggeredactivationofPLCandPLA2wasfoundtobefollowedbytheincreaseofPKCactivitiesinbothcelllines.Inspiteofthesesimilarities,J774cellspossessedbothbasicandacidicformsofPKCactivities,whileP388D1cellsownedonlyPKCofbasicform.Nevertheless,thequestionwhyJ774cells,butnotP388D1cells,canacquirethetumoricidalactiyity,aganistP815cellsfollowingLPS-treatmentremainstobeanswered.

  • 标签: MURINE macrophagss LPS-induced activation PLO PLA2