DNA isolation / purification Bacteria Gram positive

Get tips on using DNeasy mericon Food Kit (50) to perform DNA isolation / purification Processed food

Get tips on using DNeasy PowerMax Soil Kit (10) to perform DNA isolation / purification Soil samples

Get tips on using DNeasy PowerWater Sterivex Kit (50) to perform DNA isolation / purification Water samples

Get tips on using DNeasy Blood & Tissue Kit to perform DNA isolation / purification Cells - Primary cells HUVEC

Get tips on using DNeasy Plant Pro Kit (250) to perform DNA isolation / purification Plants - Mycelial mats

Get tips on using DNeasy PowerClean Pro Cleanup Kit (50) to perform DNA isolation / purification Water samples

Get tips on using DNeasy Blood & Tissue Kit to perform DNA isolation / purification Cells - Primary cells Rat astrocytes

Get tips on using DNeasy Blood & Tissue Kit to perform DNA isolation / purification Cells - Immortalized cell lines C2C12

I am currently using a recombinant protein which shows metal-dependent DNase activity. Is it possible to pinpoint the source of the DNase activity after protein purification? More specifically, can I ensure that the DNase activity is not because of nuclease contamination from the E.coli that might have persisted and passed with the protein of interest during purification?

Get tips on using QIAamp DSP Virus Kit to perform DNA isolation / purification Tissue - blood / plasma