Immunohistochemistry Anti-Glial Fibrillary Acidic Protein (GFAP) Mouse

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 NeuroCult™ Basal Medium (Mouse & Rat) to perform 3D Cell Culture Media Mouse embryonic neurospheres

Get tips on using siGENOME Mouse Amotl2 (56332) siRNA - SMARTpool to perform siRNA / miRNA gene silencing Mouse - MS1 AmotL2

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Get tips on using IntestiCult™ Organoid Growth Medium (Mouse) to perform 3D Cell Culture Media Mouse small intestinal organoids

Get tips on using siGENOME Mouse Sod2 (20656) siRNA - SMARTpool to perform siRNA / miRNA gene silencing Mouse - RGC-5 Sod2

Get tips on using ScriptSeq Complete Kit (Human/Mouse/Rat) to perform RNA sequencing Mouse - Bone marrow-derived macrophages (BMDMs)

Get tips on using APO-BrdU™ TUNEL Assay Kit, with Alexa Fluor™ 488 Anti-BrdU to perform DNA Damage Assay Human Skin Fibroblast Cell (FSK)

Get tips on using ON-TARGETplus Mouse Cflar (12633) siRNA to perform siRNA / miRNA gene silencing Mouse - 3T3-SA Flip/CFLAR