计算2-DDCt值的公式如下:2-DDCt=2-[(Ct目的基因-Ct内参基因)处理组-[(Ct目的基因-Ct内参基因)对照组]。举例来说,如果Cdk5在处理前后样品中的Ct平均值分别为25和22.1,内参GAPDH在处理前后样品中的Ct平均值分别为18.2和18.3,则Cdk5表达的变化可以用2-DDCt公式计算得出,结果显示处理组Cdk5的...
代入方程: 25=-3.432X+34.638,所以: X=2.8 Copies=10^2.8 3.22-DDCt定量 2-DDCt方法使用的前提是内参和目的基因的扩增效率接近100%,且相差不超过5%。所用公式如下:2-DDCt=2-[(Ct目的基因-Ct内参基因)]处理组-[(Ct目的基因-Ct内参基因)]对照组 =2-[E-F]处理组-[A-B]对照组...
qPCR文献---通过2-CT方法 系统标签: 定量基因表达pcr实时qpcr相对 杂志:参数优化和结果分析——METHODS25,402–408(2001) 翻译自: AnalysisofRelativeGeneExpressionDataUsingReal-TimeQuantitativePCRandthe 22DDCTMethod KennethJ.Livak*andThomasD.Schmittgen AppliedBiosystems,FosterCity,California94404;and†Department...
#使用ddCt包分析基因表达差异 library("ddCt") showClass("InputFrame") coreData <- data.frame(matrix(nrow = nrow(datax), ncol = 4)) colnames(coreData) <- c("Sample", "Detector", "Ct", "Platename") ddct.raw <- new("InputFrame") ddct.raw@coreData <- coreData ddct.raw@coreData$...
Analysis of Relative Gene Expression Data Using Real-Time Quantitative PCR and the 22DDCT Method Kenneth J. Livak* and Thomas D. Schmittgen Applied Biosystems, Foster City, California 94404; and †Department of Pharmaceutical Sciences, College of Pharmacy Washington State University, Pullman, ...
QPCR原理 兼顾速度与可靠性 EppendorfPCR系统 20YearsofPCR KaryMullis PCR只是一个概念,所发生的奇迹是:PCR概念变成了可操作的实验系统,变成了一项成熟的技术,后者又上升成为新的概念。…它最大的特点就是能不断推出新形式。——摘自[MakingPCR:AStoryofBiotechnologybyPaulRabinow]5‘3‘TACGACCTTAGCCTGACGAGA...
get_ddCt(get(paste('delta_Ct_',sample_groups[-1][i],sep="")))#循环调用变量}#得到ΔΔCtfor(iin1:length(sample_groups[-1])){ddCt_all<-rbind(ddCt_all,get(paste('ddCt_',sample_groups[-1][i],sep="")))}#合并所有ΔΔCtddCt_all<-ddCt_all|>mutate(quantity=2^(-(ddCt_all...
# Generated by roxygen2: do not edit by hand export(CalCurve) export(CalExp2dCt) export(CalExp2ddCt) export(CalExpCurve) export(CalExpRqPCR) 127 changes: 127 additions & 0 deletions 127 CRAN/qPCRtools/R/CalExp2dCt.R Original file line numberDiff line numberDiff line change @@ -0,0...
ddCt: the ddCt algorithm for the analysis of quantitative real-time PCR (qRT-PCR). (2021). R package version 1.48.0. Livak KJ, Schmittgen TD. Analysis of relative gene expression data using real-time quantitative PCR and the \(2^{-\Delta \Delta Ct}\) method. Methods. 2001;25(4):...
ECT2 EPN3 KLC1 MYO6 PRKCI RAB35 REPS2 SRC LDHA D AP2B1 CAV3 DCTN1 EEA1 EPS15 KLC2 MYOF PTRF RAB4A RHOA STX5 NONO E AP2S1 CDC42 DCTN2 EHD1 EXOC5 KRAS PAK1 RAB10 RAB5A ROCK1 SYNJ1 PPIH F ARF1 CEP164 DENND1A EHD2 ...