RNA isolation / purification Tissue

Get tips on using NEBNext® Ultra™ RNA Library Prep Kit for Illumina® to perform RNA sequencing Human - SH-SY5Y

Get tips on using NEBNext® Ultra™ RNA Library Prep Kit for Illumina® to perform RNA sequencing Human - MDA-MB-231

Get tips on using NEBNext® Multiplex Small RNA Library Prep Set for Illumina® to perform RNA sequencing Mouse - ESCs (Embryonic Stem Cells)

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.

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 NEBNext® Ultra™ Directional RNA Library Prep Kit for Illumina® to perform RNA sequencing Mouse - Microglia

Get tips on using NEBNext® Ultra™ Directional RNA Library Prep Kit for Illumina® to perform RNA sequencing Mouse - Neuro 2a

Get tips on using NEBNext® Ultra™ Directional RNA Library Prep Kit for Illumina® to perform RNA sequencing Mouse - BV-2

The formation of DNA from an RNA template using reverse transcription leads to the formation of double-stranded complementary DNA or cDNA. The challenges with this process include 1. Maintaining the integrity of RNA, 2. Hairpin loops or other secondary structures formed by single-stranded RNA can also affect cDNA synthesis, and 3. DNA-RNA hybrids, which may result when the first strand of cDNA is formed. For the first challenge, using workflows that involve proper isolation and storage of RNA, and maintaining a nuclease-free environment helps obtain RNA with ideal 260/230 ratios. Using a reverse transcriptase that can tolerate high temperatures (50-55oC), overcomes obstacles imposed by secondary RNA structures. Finally, RNase H has the ability to hydrolyze RNA before the formation of a second cDNA strand. It is important to ensure that RNase H activity is optimal because higher RNase H activity leads to premature degradation of the RNA template. Many reverse transcriptases offer built-in RNase H activity.

Get tips on using NEBNext® Ultra™ Directional RNA Library Prep Kit for Illumina® to perform RNA sequencing Mouse - ESCs (Embryonic Stem Cells)