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质谱MRM方法开发--ABC外排蛋白指纹肽段的Insilico筛选研究
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作者 彭洁 《中南药学》 CAS 2024年第9期2326-2331,共6页
目的基于质谱MRM方法开发,建立相关ABC外排蛋白P-gp、MRP1、BCRP指纹肽段的In silico筛选方法。方法运用生物信息学方法,使用Uniprot软件获取目标氨基酸序列,根据肽段选择规则进行筛选;使用Skyline软件预测肽段离子及MRM相关母离子和子... 目的基于质谱MRM方法开发,建立相关ABC外排蛋白P-gp、MRP1、BCRP指纹肽段的In silico筛选方法。方法运用生物信息学方法,使用Uniprot软件获取目标氨基酸序列,根据肽段选择规则进行筛选;使用Skyline软件预测肽段离子及MRM相关母离子和子离子的信息,并排除特定不确定或不稳定的氨基酸;最后采用Blast软件对候选指纹肽段进行独特性确认,最终需结合质谱检测的方法进行验证。结果成功运用生物信息学方法,选定代表各自目标蛋白的指纹肽段,结果为P-gp蛋白肽段,IATEAIENFR;MRP1蛋白肽段,EDAQVDLFR;BCRP蛋白肽段,SSLLDVLAAR。结论In silico联合质谱的MRM方法成功选定了ABC相关外排蛋白的指纹肽段,为具有肽段组成的各类蛋白类、多肽类物质检测奠定了基础。 展开更多
关键词 指纹肽段 insilico MRM方法 ABC外排蛋白
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甘蔗ATP合酶基因的电子克隆及生物信息学分析 被引量:12
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作者 张云鹤 曹翠岩 +2 位作者 邢慧清 黄赛楠 李玥莹 《生物技术》 CAS CSCD 北大核心 2013年第2期34-40,共7页
目的:运用电子克隆的方法获得甘蔗中的ATP合酶基因。方法:以小麦中一个ATP合酶基因为种子序列,对甘蔗的EST数据库进行搜索,应用相关软件进行聚类分析、拼接组装和延长。结果:获得一个ATP合酶基因SATPC1的cDNA序列全长,该序列长1 415bp,... 目的:运用电子克隆的方法获得甘蔗中的ATP合酶基因。方法:以小麦中一个ATP合酶基因为种子序列,对甘蔗的EST数据库进行搜索,应用相关软件进行聚类分析、拼接组装和延长。结果:获得一个ATP合酶基因SATPC1的cDNA序列全长,该序列长1 415bp,包含一个完整的1 077bp的ORF,编码358个氨基酸,且与水稻、玉米、高粱和葡萄等其他植物的ATP合酶具有高度的同源性。结论:电子克隆获得的cDNA序列为完整的甘蔗ATP合酶基因全长cDNA。 展开更多
关键词 甘蔗 ATP合酶 电子克隆 生物信息学
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生物信息学电子克隆辅助系统的设计与实现 被引量:1
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作者 叶少挺 牛宝龙 +1 位作者 郑可锋 孟智启 《农业网络信息》 2006年第12期22-24,49,共4页
本文阐述了如何在Intranet环境中设计并实现一个通用的基因测序电子克隆系统,以满足各研究院所的大规模、快速数据分析工作需要。
关键词 电子克隆 相似性检索 序列拼接 信息管理
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陆地棉MS5同源基因的电子克隆及序列分析
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作者 金刚 唐向民 +3 位作者 刘冬梅 陈鹏 韦丽君 周瑞阳 《江苏农业学报》 CSCD 北大核心 2014年第2期243-247,共5页
高等植物MS5基因的异常表达可导致雄性不育的发生。本研究利用EST数据库,在陆地棉隐性雄性不育系洞A中通过电子克隆获得1个棉花MS5同源基因,命名为GhMS5。采用RT-PCR方法验证GhMS5基因的cDNA序列,并利用在线分析平台和生物软件对该基因... 高等植物MS5基因的异常表达可导致雄性不育的发生。本研究利用EST数据库,在陆地棉隐性雄性不育系洞A中通过电子克隆获得1个棉花MS5同源基因,命名为GhMS5。采用RT-PCR方法验证GhMS5基因的cDNA序列,并利用在线分析平台和生物软件对该基因进行生物信息学分析。结果显示,RT-PCR验证编码区序列与电子克隆序列一致;获得的GhMS5基因cDNA长1 631 bp,包含一个长1 437 bp的完整开放阅读框,编码478个氨基酸;其分子量为53 240,等电点为9.25;GhMS5蛋白质具有典型的TPR保守结构域;此蛋白质不存在信号肽及跨膜结构,可能定位于叶绿体,二级结构主要以α-螺旋和无规则卷曲为主。表明电子克隆能用于棉花基因的分离。 展开更多
关键词 陆地棉 MS5同源基因 电子克隆 序列分析
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基于CMMI的基因电子克隆辅助系统开发
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作者 叶少挺 祝利莉 郑可锋 《农业网络信息》 2009年第11期20-22,共3页
在CMMI模型的基础上自定义了ICS-CMMI流程,在ICS-CMMI的指导下,ICS开发实现了有效的过程管理,说明了ICS-CMMI对CMMI的成功继承和发扬。最后讨论了实施CMMI的几点注意事项。
关键词 CMMI 过程管理 质量管理 电子克隆
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In Silico——硅片上的研究 被引量:1
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作者 胡宜 王静舒 《日本医学介绍》 2003年第1期46-47,共2页
关键词 insilico分析法 硅片 医学生物学 试验方法
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Type-2 Diabetes Mellitus and Glucagon-Like Peptide-1 Receptor toward Predicting Possible Association
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作者 Nabaa Kamal Alshafei Intisar Hassan Saeed Mona Abdelrahman Mohamed Khaier 《Computational Molecular Bioscience》 2023年第3期48-62,共15页
Aim: This study aimed to investigate the effect of non-synonymous SNPs (nsSNPs) of the Glucagon-like peptide-1 Receptor (GLP-1R) gene in protein function and structure using different computational software. Introduct... Aim: This study aimed to investigate the effect of non-synonymous SNPs (nsSNPs) of the Glucagon-like peptide-1 Receptor (GLP-1R) gene in protein function and structure using different computational software. Introduction: The GLP1R gene provides the necessary instruction for the synthesis of the insulin hormones which is needed for glucose catabolism. Polymorphisms in this gene are associated with diabetes. The protein is an important drug target for the treatment of type-2 diabetes and stroke. Material and Methods: Different nsSNPs and protein-related sequences were obtained from NCBI and ExPASY database. Gene associations and interactions were predicted using GeneMANIA software. Deleterious and damaging effects of nsSNPs were analyzed using SIFT, Provean, and Polyphen-2. The association of the nsSNPs with the disease was predicted using SNPs & GO software. Protein stability was investigated using I-Mutant and MUpro software. The structural and functional impact of point mutations was predicted using Project Hope software. Project Hope analyzes the mutations according to their size, charge, hydrophobicity, and conservancy. Results: The GLP1R gene was found to have an association with 20 other different genes. Among the most important ones is the GCG (glucagon) gene which is also a trans membrane protein. Overall 7229 variants were seen, and the missense variants or nsSNPs (146) were selected for further analysis. The total number of nsSNPs obtained in this study was 146. After being subjected to SIFT software (27 Deleterious and 119 Tolerated) were predicted. Analysis with Provean showed that (20 deleterious and 7 neutral). Analysis using Polyphen-2 revealed 17 probably damaging, 2 possibly damaging and 1 benign nsSNPs. Using two additional software SNPs & GO and PHD-SNPs showed that 14 and 17 nsSNPs had a disease effect, respectively. Project Hope software predicts the effect of the 14 nsSNPs on the protein function due to differences in charge, size, hydrophobicity, and conservancy between the wild and mutant types. Conclusion: In this study, the 14 nsSNPs which were highly affected the protein function. This protein is providing the necessary instruction for the synthesis of the insulin hormones which is needed for glucose catabolism. Polymorphisms in this gene are associated with diabetes and also affect the treatment of diabetic patients due to the fact that the protein acts as an important drug target. 展开更多
关键词 Glucagon-Like Peptide-1 Receptor Single Nucleotide Polymorphism insilico Analysis Non Synonymous SNP SIFT Polyphen-2 GeneMANIA
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高丛越桔UFGT基因电子克隆和生物信息学分析 被引量:1
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作者 信小娟 马伟 李玉成 《现代农业科技》 2017年第6期81-84,共4页
[目的]通过电子克隆技术对高丛越桔UFGT基因进行预测。[方法]以笃斯越橘UFGT序列为探针,基于NCBI中高丛越桔的EST数据库和CAP3在线软件进行序列拼接,利用生物信息学数据库及相关软件对其结构和功能进行预测分析。[结果]高丛越桔UFGT基... [目的]通过电子克隆技术对高丛越桔UFGT基因进行预测。[方法]以笃斯越橘UFGT序列为探针,基于NCBI中高丛越桔的EST数据库和CAP3在线软件进行序列拼接,利用生物信息学数据库及相关软件对其结构和功能进行预测分析。[结果]高丛越桔UFGT基因全长1 789 bp,包含1 161 bp的开放阅读框,编码386个氨基酸,该蛋白为亲水性蛋白。[结论]本研究为进一步解释基因的分子功能奠定理论及实验基础。 展开更多
关键词 高丛越桔 UFGT 电子克隆 生物信息学
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A multifunctional key to open a new window on the path to natural resources-lessons from a study on chemical composition and biological capability of Paeonia mascula L.from Turkey
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作者 Inci Kurt-Celep Gokhan Zengin +11 位作者 Engin Celep Stefano Dall’Acqua Stefania Sut Irene Ferrase Gunes Ak Abdullahi Ibrahim Uba Rıdvan Polat Deniz Canlı Ekrem Darendelioglu Muhammad Zakariyyah Aumeeruddy Mohammad Ali Shariati Mohamad Fawzi Mahomoodally 《Food Bioscience》 SCIE 2023年第1期1301-1316,共16页
The genus Paeonia has gained great interest from the scientific community for exploration as a source of bioactive compounds.The current work focused on the chemical characterisation and biological properties of Paeon... The genus Paeonia has gained great interest from the scientific community for exploration as a source of bioactive compounds.The current work focused on the chemical characterisation and biological properties of Paeonia mascula L.from Turkey.The chemical characterisation of the extracts was analysed by LC-DAD-ESI and LC-APCI-MS.The antioxidant,enzyme inhibitory and anticancer properties were evaluated in vitro.The methanol extract was the most effective as antioxidant,metal chelator and was the most effective inhibitor of acetylcholinesterase(AChE)and tyrosinase.The chloroform extract showed highest inhibition of butrylcholinesterase(BChE)and amylase.Ethyl acetate extract displayed glucosidase inhibition.The most abundant compounds were hexagalloyl glucose,penta galloyl glucose,gallic acid,tetragalloyl glucose,paeoniflorin and the most abundant flavonoid was quercetin-3-O-glucoside.β-sitosterol was the most abundant phytosterol.The anticancer effect of P.mascula was evaluated by using HELA cells evaluating different pathways.The possible inhibition effect of P.mascula on the reactive oxygen species(ROS)pathway was controlled by performing the advanced glycation end product(AGE).To determine the effect of P.mascula on active molecular pathways in the HELA cancer cell line,the levels of Phospho-NF-Kβp65,AGE receptor RAGE protein,antiapoptotic BCL-2,proapoptotic BAX and P-53 proteins were checked,respectively.Phospho-NF-Kβp65,RAGE and BCL-2,which are both ROS inducers and play an active role in cancer prognosis,were found to have decreased levels after the application of P.mascula.Our findings provide a scientific basis for Paeonia mascula,which may serve as a source of naturally occurring bioactive compounds for healthpromoting applications. 展开更多
关键词 PAEONIA Phenolics Antioxidant Enzyme inhibition ANTICANCER insilico analysis
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