DNA isolation / purification Plants

Get tips on using mirVana™ miRNA Isolation Kit, with phenol to perform RNA isolation / purification Cells - primary human pulmonary artery endothelial cells

Get tips on using AllPrep DNA/RNA/Protein Mini Kit to perform Protein isolation Tissue - Human placental tissue

Plasmid isolation is an important technique in molecular biology or any kind of genetic editing. It involves amplifying plasmids overnight by transforming them into competent bacterial cells. The desired colonies of these bacteria can then be grown in shaker cultures, at appropriate shaking speed, oxygen availability and temperature. These liquid cultures can then be ultracentrifuged to pellet the bacteria, which are then used for plasmid isolation. The bacteria are first resuspended in a buffer, then lysed, neutralized, purified in a column, eluted, precipitated with ethanol and then resuspended. During plasmid isolation, it is important to lyse cells quickly because lysing bacteria for too long may lead to irreversible denaturing of the plasmid. Usually, alkaline lysis is used for isolation because it is a mild treatment. It isolates plasmid DNA and other cell components such as proteins by breaking cells apart with an alkaline solution. Precipitation removes the proteins, and the plasmid DNA recovers with alcohol precipitation. Resuspension and lysis buffers should be mixed thoroughly in order to prevent the DNA from breaking into smaller fragments. This is because broken gDNA can reanneal and remain in the solution, without binding to the column.

Get tips on using mirVana™ miRNA Isolation Kit, with phenol to perform RNA isolation / purification Cells - primary human pulmonary artery smooth muscle cells

Transfection is a powerful technique that enables the study of the function of genes and gene products in cells. Based on the nature of experiments, we may need a stable DNA transfection in cells for persistent gain-of-function or loss-of-function of the target gene. For stable transfection, integration of a DNA vector into the chromosome is crucial which requires selective screening and clonal isolation. By carefully selecting a viral delivery system and related reagents we can ensure safe and highly-efficient delivery of expression constructs for high-level constitutive or inducible expression in any mammalian cell type.

Transfection is a powerful technique that enables the study of the function of genes and gene products in cells. Based on the nature of experiments, we may need a stable DNA transfection in cells for persistent gain-of-function or loss-of-function of the target gene. For stable transfection, integration of a DNA vector into the chromosome is crucial which requires selective screening and clonal isolation. By carefully selecting a viral delivery system and related reagents we can ensure safe and highly-efficient delivery of expression constructs for high-level constitutive or inducible expression in any mammalian cell type.

Get tips on using EZ-10 Spin Column Plasmid DNA Miniprep Kit to perform Plasmid Isolation E. coli-S. cerevisiae transconjugate

Get tips on using Ambion™ RecoverAll™ Total Nucleic Acid Isolation Kit for FFPE to perform RNA isolation / purification Tissue - Rat Kidney

Get tips on using Ambion™ RecoverAll™ Total Nucleic Acid Isolation Kit for FFPE to perform RNA isolation / purification Tissue - Human Kidney

The DNA concentration after using this DNA isolation kit is sometimes too low and thus it is not sufficient for my follow-up experiments. How can I improve it?