Bio-Mimicry

  PRIMER DESIGN SERIES ---05--- Part 5: Primer Design Platforms The five best free tools — what they do, how to use them, and when to choose each one Molecular Biology  |  PCR  |  Bioinformatics Tools In the first four parts of this series, we have built a complete conceptual framework for primer design: the physicochemical specifications that define a good primer, the step-by-step design workflow, the thermodynamic characterization methods, and the wet-lab validation tests that confirm a primer works. What we have not yet done is sit down in front of a web browser and actually run the tools. This is the practical platform guide. There are dozens of primer design tools on the internet, ranging from bare-bones online calculators to sophisticated integrated research platforms. The five covered in this article are the ones that matter most — the tools used daily by molecular biologists at research institutions worldwide, validated by thousands of publ...

  PRIMER DESIGN SERIES ---04--- Part 4: Primer Validation Six wet-lab tests that confirm your primer works before your experiment begins Molecular Biology   |   PCR   |   Primer Design Parts 1 through 3 of this series have all taken place on a screen. You have retrieved sequences, set parameters, generated candidates, and characterized each one thermodynamically using OligoAnalyzer and Primer-BLAST. The in silico work is done, the primers have been synthesized and arrived in their tubes, and now comes the step that no software can replicate: putting the primers into a reaction and seeing what they actually do. Primer validation is the wet-lab confirmation that a primer performs as predicted. It is not optional, and it is not a single experiment. A fully validated primer pair has passed a series of independent tests, each of which probes a different failure mode — from gross non-specificity caught by gel electrophoresis, to subtle efficiency problem...