siRNA / miRNA gene silencing Human A2780

Get tips on using Xfect™ Transfection Reagent to perform siRNA / RNAi /miRNA transfection Rat - H9c2 Cationic and neutral lipids

Get tips on using β-Gal Reporter Gene Assay, chemiluminescent to perform Reporter gene assay β-galactosidase substrates - RAW 264.7

Get tips on using β-Gal Reporter Gene Assay, chemiluminescent to perform Reporter gene assay β-galactosidase substrates - SH-SY5Y

DNA microarrays enable researchers to monitor the expression of thousands of genes simultaneously. However, the sensitivity, accuracy, specificity, and reproducibility are major challenges for this technology. Cross-hybridization, combination with splice variants, is a prime source for the discrepancies in differential gene expression calls among various microarray platforms. Removing (either from production or downstream bioinformatic analysis) and/or redesigning the microarray probes prone to cross-hybridization is a reasonable strategy to increase the hybridization specificity and hence, the accuracy of the microarray measurements.

Get tips on using β-Gal Reporter Gene Assay, chemiluminescent to perform Reporter gene assay β-galactosidase substrates - MIA PaCa-2

Get tips on using β-Galactosidase Reporter Gene Staining Kit to perform Reporter gene assay β-galactosidase substrates - mouse embryo tissue

Get tips on using β-Gal Reporter Gene Assay, chemiluminescent to perform Reporter gene assay β-galactosidase substrates - mouse mesenchymal stem cells

Get tips on using β-Galactosidase Reporter Gene Staining Kit to perform Reporter gene assay β-galactosidase substrates - HeLa cervical cancer cells

Get tips on using β-Galactosidase Reporter Gene Staining Kit to perform Reporter gene assay β-galactosidase substrates - rat mesenchymal stem cells (MSCs)

Reporter gene assays are designed to test the regulation of the expression of a gene of interest. This is usually done by linking the promoter of the gene of interest with a gene such as a firefly luciferase, which can be easily detected by addition of luciferin that leads to an enzymatic reaction to produce luminescence. The enzymatic reaction can be correlated to the expression of the gene of interest. Another luciferase gene that can be used is Renilla luciferase. For an appropriate luciferase assay: 1. the reporter should express uniformly in all cells, 2. specifically respond to effectors that the assay intends to monitor, 3. have low intrinsic stability to quickly reflect transcriptional dynamics. It is important to have an equal number of cells plated in each testing condition to avoid any incorrect readouts. Reporter assays could be single or dual reporter assays. The reporter could be both luciferases. Most dual-luciferase assays involve adding two reagents to each sample and measuring luminescence following each addition. Adding the first reagent activates the first luciferase reporter reaction; adding the second reagent extinguishes first luciferase reporter activity and initiates the second luciferase reaction. Dual-luciferase assays have some advantages, including 1. reduces variability, 2. reduces background, 3. normalizes differences in transfection efficiencies between samples.