东南大学学报(医学版)
東南大學學報(醫學版)
동남대학학보(의학판)
JOURNAL OF SOUTHEAST UNIVERSITY(MEDICAL SCIENCE EDITION)
2013年
6期
680-685
,共6页
FADD%序列比对%邻近法%进化树%组织分布
FADD%序列比對%鄰近法%進化樹%組織分佈
FADD%서렬비대%린근법%진화수%조직분포
Fas-associated death domain%sequence alignment%neighbor-joining%phylogenetic tree%tissue distribution
目的:分析不同物种FADD的蛋白序列进化规律及FADD在不同组织中的转录和表达分布特征。方法:使用Mega 5.0软件对主要物种中FADD的蛋白序列进行比对分析,根据蛋白序列相似性使用邻近法绘制进化树。取FADD+/-小鼠脑、肝、肾、心、肺、肌肉、脾脏、胃、肠,分别提RNA并反转录成cDNA和同时制备相应的蛋白样品,将FADD+/-小鼠在核酸水平和蛋白水平各主要组织中FADD 的表达结果与小鼠FADD表达的UniGene EST Profile结果进行综合比较分析。结果:获得不同物种FADD的蛋白序列比对结果及进化规律,确定FADD在小鼠肺、心脏、胃中相对高表达的可靠结果,其他组织中FADD的表达量还有待进一步验证。结论:FADD的蛋白序列在进化中相对比较保守,其在小鼠肺、心脏、胃组织中高表达,这为进一步研究FADD在不同组织中生物功能奠定了良好的基础。
目的:分析不同物種FADD的蛋白序列進化規律及FADD在不同組織中的轉錄和錶達分佈特徵。方法:使用Mega 5.0軟件對主要物種中FADD的蛋白序列進行比對分析,根據蛋白序列相似性使用鄰近法繪製進化樹。取FADD+/-小鼠腦、肝、腎、心、肺、肌肉、脾髒、胃、腸,分彆提RNA併反轉錄成cDNA和同時製備相應的蛋白樣品,將FADD+/-小鼠在覈痠水平和蛋白水平各主要組織中FADD 的錶達結果與小鼠FADD錶達的UniGene EST Profile結果進行綜閤比較分析。結果:穫得不同物種FADD的蛋白序列比對結果及進化規律,確定FADD在小鼠肺、心髒、胃中相對高錶達的可靠結果,其他組織中FADD的錶達量還有待進一步驗證。結論:FADD的蛋白序列在進化中相對比較保守,其在小鼠肺、心髒、胃組織中高錶達,這為進一步研究FADD在不同組織中生物功能奠定瞭良好的基礎。
목적:분석불동물충FADD적단백서렬진화규률급FADD재불동조직중적전록화표체분포특정。방법:사용Mega 5.0연건대주요물충중FADD적단백서렬진행비대분석,근거단백서렬상사성사용린근법회제진화수。취FADD+/-소서뇌、간、신、심、폐、기육、비장、위、장,분별제RNA병반전록성cDNA화동시제비상응적단백양품,장FADD+/-소서재핵산수평화단백수평각주요조직중FADD 적표체결과여소서FADD표체적UniGene EST Profile결과진행종합비교분석。결과:획득불동물충FADD적단백서렬비대결과급진화규률,학정FADD재소서폐、심장、위중상대고표체적가고결과,기타조직중FADD적표체량환유대진일보험증。결론:FADD적단백서렬재진화중상대비교보수,기재소서폐、심장、위조직중고표체,저위진일보연구FADD재불동조직중생물공능전정료량호적기출。
Objective: To analyze the evolution of FADD protein in different species and its transcription and expression distribution characteristics in different tissues .Methods: Protein sequences of FADD in eight main species were compared and analyzed by using the software Mega 5.0 , and the neighbor-joining phylogenetic tree was drawn according to the protein sequence similarity .FADD+/-mice were sacrificed and their brain , liver, kidney, heart, lung, muscle, spleen, stomach, intestine were obtained and then divided into two parts .Half of the tissues were used to extract RNA for RT-PCR, the rests were used for western blot analyses .The results of FADD expression in FADD+/-mice were compared with the results of UniGene EST Profile at both mRNA and protein levels.Results: On the one hand, we obtained the protein sequence alignment and evolution law of FADD in different species.On the other hand, we found FADD expression was relatively high in lung , heart, stomach, while the expression of FADD in other tissues remains to be verified .Conclusion:The present studies find that FADD is highly conserved in the process of evolution and it is highly expressed in lung , heart and stomach .These results provide a foundation for further investigation of the biological function of FADD in different tissues .