Phage DNA Isolation Kit: Rapid & High-Yield Bacteriophage Genomics
The Phage DNA Isolation Kit is a robust purification system designed to overcome the unique challenges associated with extracting genomic DNA from bacteriophages. Traditional isolation methods often rely on toxic phenol-chloroform extractions or time-consuming caesium chloride (CsCl) density gradients, which can compromise sample integrity and user safety. This kit solves these issues by utilising a rapid spin-column chromatography format that delivers high yields of viral DNA from a broad spectrum of phage strains without the need for hazardous organic solvents.
Optimised for both propagation and purification, the system effectively isolates total genomic DNA from enriched phage cultures (10⁶ – 10¹⁰ pfu/mL). The protocol includes optional steps to treat samples with DNase I and Proteinase K, ensuring the complete removal of contaminating host bacterial genomic DNA and the disruption of robust phage capsids. The result is ultra-pure DNA that is immediately ready for sensitive downstream applications, including PCR, qPCR, library construction, Southern blotting, and sequencing.
Key Benefits:
- Universal Performance: Broad strain compatibility. Successfully isolates high-quality DNA from a wide variety of bacteriophages, making it an ideal choice for phage display libraries and phage therapy research.
- Enhanced Safety: No organic solvents. The column-based protocol eliminates the need for toxic phenol, chloroform, or caesium chloride, significantly reducing hazardous waste and risk to the user.
- Superior Purity: Eliminates host DNA. Includes an optimised protocol for optional DNase I treatment, which selectively degrades host bacterial genomic DNA while leaving the viral genome protected within the phage capsid.
- Rapid Workflow: 45-minute protocol. Process up to 10 purifications in under an hour with a simple bind-wash-elute procedure that requires no alcohol precipitation.
Technical Insights
The Norgen Phage DNA Isolation Kit is engineered to provide flexibility depending on the specific phage strain and host background. The data below demonstrates the kit’s ability to produce clean viral DNA even from complex enriched cultures.
High Yield Across Diverse Phage Strains
Total DNA was isolated from eight different enriched phage cultures using Norgen’s Phage DNA Isolation Kit. The gel image above demonstrates the kit’s ability to consistently recover high-quality genomic DNA from a broad spectrum of phage types. For certain strains (e.g., Lanes 2, 5, and 6), an optional Proteinase K treatment (included in the protocol) significantly improves DNA yield by aiding in the disruption of robust viral capsids.
Specifications
- Column Binding Capacity: 50 µg
- Maximum Loading Volume: 650 µL
- Average Yield: 3–15 µg DNA (from 10⁶ – 10¹⁰ pfu/mL)
- Time to Complete 10 Purifications: 45 minutes
- Size of DNA Purified: All sizes
- Maximum Starting Material: 10⁶ – 10¹⁰ pfu/mL enriched phages
- Kit Formats: 50 Preps (Cat. 46800), 100 Preps (Cat. 46850)