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Lysis time will vary depending on the size and density of the source material. The QIAGEN Genomic-tip will run slowly due to the high debris content in the nuclear fraction. The yield is about 0.3-0.4 µg DNA/fly.
The procedure has been successfully used for isolation of mRNA from adipose tissue by customers. Because of the nature of adipose tissue it cannot be used immediately in Oligotex Direct mRNA Protocols; simple centrifugation, however, eliminates the problem, and the procedure works fine.
The procedure has been used successfully by customers for regeneration of Oligotex resin from spin columns following elution of poly A+ mRNA.
This procedure has been developed by customers for the transient transfection of HEK 293 cells in 75 cm3 flasks using QIAGEN® PolyFect® Transfection Reagent. It has not been thoroughly tested and optimized by QIAGEN.

This protocol has been adapted from the pretreatment of sexual assault samples and is for the lysis and extraction of DNA from a sperm pellet after differential separation.

The procedure has been used successfully for isolation of high-copy-number plasmids from Proteus vulgaris and Proteus mirabilis. Yield of plasmid DNA was typically 3-8 µg DNA per ml culture.
The procedure has been used successfully for isolation of the large (128 kb), very-low-copynumber (1-2 copies per cell) plasmid pHCG3 and its derivatives from Oligotropha carboxidovorans. Yield of plasmid DNA was typically 3-6 µg plasmid DNA from 200 ml culture.
The procedure has been used successfully for isolation of cryptic plasmids (pLC2-based) from mesophilic Lactobacillus strains such as L. sake and L. curvatus. Yield of plasmid DNA was typically 10-20 µg plasmid DNA from 100 ml culture.
The procedure has been used successfully for isolation of plasmids SCP2 and SCP2* as well as the plasmids listed in Table 1 (see next page) from S. coelciolor and S. lividans strains.
The procedure has been used successfully for isolation of a variety of medium-copy-number shuttle vectors from S. xylosus, S. carnosus, S. epidermidis, and S. aureus. Yield of plasmid DNA was typically 2-10 µg from 50 ml culture.
The procedure has been used successfully for isolation of 110 kb P1 DNA (pAdsacBII with an 80 kb insert) from Escherichia coli strain NS3529. Yield of P1 DNA was typically 10-50 µg from 500 ml culture.
The procedure has been used successfully for isolation of high- and low-copy-number plasmids from various Bacillus subtilis strains. Yield of plasmid DNA was typically 10-20 µg plasmid DNA from 100 ml culture.
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