Plasmid and DNA analysis

Advance your projects with purpose-built solutions for the analysis of plasmid DNA (pDNA) and double-stranded DNA (dsDNA) to support the development of your messenger RNA (mRNA), viral vectors, recombinant proteins and other new modalities. 

Overview

Plasmid and DNA analysis challenges can be a thing of the past. 

Whether you need high-quality supercoiled plasmid DNA (pDNA) for protein and viral vector production or linearized double-stranded DNA (dsDNA) for in vitro transcription (IVT), you and your team can rely on workflows that bring value to your double-stranded nucleic acid analyses. 

Using restriction enzyme digestion paired with high separation power lets you determine the gene insert, regulatory regions, nuclease sites or encoded poly-A tails of your raw material pDNA with confidence.

Solutions that cover sequencing, microbial typing and gene expression analysis provide you with the needed flexibility to overcome future challenges. 

pDNA isoforms

Workflow

Ensuring the correct isoform of plasmid DNA (pDNA) is crucial for the production of proteins, viral vectors and IVT RNA. Reliable and reproducible analysis and quantitation of topological variants of pDNA are key to determining the quality of intermediate products during development. An efficient transfer to quality control (QC) is desirable, however, and requires highly robust workflows.

Explore how to confirm linearized dsDNA size, quantity and purity simultaneously. Determine the purity of covalently-closed circular/supercoiled pDNA  and monitor pDNA stability with high quality and robustness.

  • Take back your time by separating linear, supercoiled, and open circular dsDNA plasmid variants with baseline resolution within minutes
  • Determine and monitor the purity and stability of supercoiled pDNA, reproducibly
  • Ensure consistent quality for subsequent IVT with reproducible sizing up to 15,000 bp
  • Efficiently transfer assays to quality control with highly reproducible, precise and robust solutions
  • Streamline data management and compliance needs through compatiblity with the Empower Chromatography Data System (CDS)

pDNA restriction fragment analysis

Workflow

Information on gene inserts, regulatory regions, and nuclease sites of pDNA is important for investigational new drug (IND) submissions for viral vectors and protein therapeutics. Furthermore, poly-A tails for IVT mRNA are frequently encoded in the pDNA template and their lengths and potential heterogeneity requires assessment. 

While these attributes can be analyzed with restriction fragment assays, accurate and reproducible sizing over an extended size range are challenges analytical scientists face. 

  • Achieve high-resolution, accurate and reproducible dsDNA analysis
  • Accurately determine pDNA fragment sizes from 100 to 15,000 bp
  • Assess encoded poly-A tail lengths for IVT mRNA production
  • Simplify DNA analysis with a turnkey, kit-based solution
  • Streamline data management and compliance needs through compatiblity with the Empower CDS

Solution

pDNA restriction fragment analysis

PA 800 Plus system

Characterize therapeutic molecules with confidence with the kit-based system.

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dsDNA 1000 kit

Analysis of double-stranded linearized fragments and plasmid isoforms.

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pDNA sequencing

Workflow

Recombinant DNA technology has revolutionized drug product manufacturing. The verification of the coding information of the expression product through pDNA sequencing is an important step along the way. It mitigates the need for maintaining cell banks and reduces the risk of losing relevant information. High-quality data obtained in a routine manner is required for such analyses.

  • Obtain high-quality sequencing results using linear polyacrylamide gels and coated capillaries
  • Limit background signal and achieve high signal-to-noise ratios with near-infrared dyes
  • Enable routine sequencing analyses with reduced GC compression
  • Accomplish accurate readthroughs of stop sequences using dGTP chemistry
  • Confidently gather pDNA sequencing results using an established, compliant-ready solution

Microbial identification and typing

Workflow

Microbial contamination is a major risk to biopharmaceutical production that must be avoided. The introduction of sterile, single-use technology certainly helps to ensure products are free from unwanted microbial and viral contaminants that could affect safety and product quality. In addition to the final product, raw materials also need to be tested. High-quality DNA and complementary DNA (cDNA) sequencing using routine workflows can reliably assist with ensuring the necessary quality of raw materials and final products.

  • Achieve high-quality sequencing results for DNA and cDNA using linear polyacrylamide gels and coated capillaries
  • Access poly-A tail length information via deconvolution of high-quality accurate mass data
  • Obtain high signal-to-noise ratios by limiting background signals with near-infrared dyes
  • Enable accurate readthroughs of stop sequences using dGTP chemistry
  • Confidently accomplish pDNA sequencing results using an established, compliant-ready solution

Gene expression analysis

Workflow

The answer lies in the genes – but which genes are being expressed? 

Gene expression analysis can advance biomarker discovery, vaccine development and other research and development efforts. Highly accurate and reproducible results using a low-cost solution with multiplexing capabilities can reduce bottlenecks and advance your research programs. 

Take charge by bringing a multipurpose genetic analysis solution in-house.

  • Understand minor differences in gene expression down to 0.5-fold changes
  • Have confidence in your analyses regardless of sample amounts
  • Obtain gene expression analysis results with superior linearity and precision
  • Confidently gather gene expression results using an established, compliant-ready solution

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