ISSN1006-7167CN31-1707/TRESEARCHANDEXPLORATIONINLABORATORY第42卷第1期Vol.42No.12023年1月Jan.2023DOI:10.19927/j.cnki.syyt.2023.01.044基于过程优化探索蛋白印迹技术的实验教学设计葛家祥a,尚佳琪a,刘江a,邓仕婧a,林牒a,杨琳b(天津中医药大学a.中西医结合学院;b.医学技术学院,天津301617)摘要:为了提高蛋白印迹实验的成功率及缩短蛋白印迹实验的周期,探索符合实验教学的过程方案,以蛋白印迹法实验操作为模板,以β-actin(48kDa)为目的蛋白,以GAPDH(36kDa)为标准蛋白,通过改变实验条件,计算β-actin与GAPDH显影后灰度值的比值,进行实验过程的优化。并对优化前后实验过程中在制胶、加样、电泳、转膜、封闭以及孵育等环节的成功率、离散度、所用时间等方面进行比较。结果表明,优化后的免疫印迹法能有效地提高成功率、降低离散度、缩短实验时间,β-actin与GAPDH显影后灰度值比值更接近1,达到实验教学的要求。关键词:蛋白印迹;过程优化;方法改进;实验教学中图分类号:G642;N33;N45文献标志码:A文章编号:1006-7167(2023)01-0223-06ExperimentalTeachingDesignofWesternBlottingBasedonProcessOptimizationGEJiaxianga,SHANGJiaqia,LIUJianga,DENGShijinga,LINDiea,YANGLinb(a.CollegeofIntegratedChineseandWesternMedicine;b.CollegeofMedicalTechnology,TianjinUniversityofTraditionalChineseMedicine,Tianjin301617,China)Abstract:InordertoimprovethesuccessrateofWesternblotexperimentandshortenthecycleofWesternblotexperiment,thispaperexplorestheprocessschemeinlinewithexperimentalteachingTheWesternblotisusedasthetemplate,β-actin(48kDa)asthetargetproteinandGAPDH(36kDa)asthestandardprotein.Theratioofβ-actintoGAPDHisusedtooptimizetheexperimentalprocess.Comparingbeforeandaftertheoptimizationoftheexperimentalprocess,wecanseethatthesuccessrateishigh,thedispersionislowandthetimeisshortenedaftertheoptimizationinthelinksofgluepreparation,sampleaddition,electrophoresis,membranetransfer,sealingandincubation.Weconcludethattheimprovedimmunoblottingmethodcaneffectivelyimprovethesuccessrate,shortentheexperimentaltimeandshortentheexperimentaltime.Theratioofβ-actintoGAPDHiscloserto1,whichmeetstherequirementsofexperimenta...