Escherichia coli O111:NM, DNA (10 µg)

Each aliquot contains 10 μg of DNA extracted from a pure culture of Escherichia coli. The identification of this organism was confirmed by 16S sequencing. The purity of the culture was monitored by Gram staining and by additional culturing. The DNA was extracted from the cells following the bacterial protocol from the Qiagen® Genomic DNA Handbook using Qiagen® Genomic DNA Buffers with a 500/G genomic tip. DNA concentration and A260/280 ratios are determined using a NanoDrop®. The extracted DNA also tested positive on an in-house real time PCR assay.

Escherichia coli purified Genomic DNA is designed for use as an amplification and/or detection control for nucleic acid testing of Escherichia coli. It can also be used to determine a limit of detection (LOD), in diagnostic assay development, cross-reactivity studies or genomic sequencing. When used as a control for nucleic acid tests, the same protocols as those used to amplify extracted clinical specimens should be employed.