Evaluating Reference Genes Expression>>
RefFinder is a user-friendly web-based comprehensive tool developed for evaluating and screening reference genes from extensive experimental datasets. It integrates the currently available major computational programs (geNorm, Normfinder, BestKeeper, and the comparative ¦¤Ct method) to compare and rank the tested candidate reference genes. Based on the rankings from each program, It assigns an appropriate weight to an individual gene and calculated the geometric mean of their weights for the overall final ranking. Please cite F Xie, P Xiao, D Chen, L Xu, B Zhang. 2012. miRDeepFinder: a miRNA analysis tool for deep sequencing of plant small RNAs. Plant molecular biology 80 (1), 75-84. Please expresses gratitude to LIZhen for establishing and maintaining the RefFinder mirror site (
Input your data:
     Try example      remove data
  1. BestKeeper: Pfaffl MW, Tichopad A, Prgomet C, Neuvians TP. 2004. Determination of stable housekeeping genes, differentially regulated target genes and sample integrity: BestKeeper--Excel-based tool using pair-wise correlations. Biotechnology letters 26:509-515.
  2. NormFinder: Andersen CL, Jensen JL, Orntoft TF. 2004. Normalization of real-time quantitative reverse transcription-PCR data: a model-based variance estimation approach to identify genes suited for normalization, applied to bladder and colon cancer data sets. Cancer research 64:5245-5250.
  3. Genorm: Vandesompele J, De Preter K, Pattyn F, Poppe B, Van Roy N, De Paepe A, Speleman F. 2002. Accurate normalization of real-time quantitative RT-PCR data by geometric averaging of multiple internal control genes. Genome biology 3:RESEARCH0034.
  4. The comparative delta-Ct method: Silver N, Best S, Jiang J, Thein SL. 2006. Selection of housekeeping genes for gene expression studies in human reticulocytes using real-time PCR. BMC molecular biology 7:33.