Research Guides, Protocols & Application Notes
Practical guides, troubleshooting tips, and comparison articles to support your research—from protein expression and purification to antibody validation and assay optimization.
Interleukins in Cancer Immunotherapy: Key Players and Research Tools
Aug 13, 2026
Key takeaways: IL-2 drives effector T cell expansion; IL-15 expands NK cells without Treg stimulation; engineered IL-12 and decoy-resistant IL-18 are emerging clinical candidates…
How to Choose Recombinant Interleukins for Your Research
Aug 13, 2026
Key takeaways: Four factors determine the right interleukin — species match, expression system, tag format, and bioactivity validation. Includes a quick-reference table by application…
His-Tag vs GST-Tag: Which Purification Tag Should You Use?
Jul 6, 2026
Key takeaways: His-tag is the default choice for most applications—small, inexpensive, and compatible with denaturing conditions. GST-tag offers higher specificity and can improve solubility, but its large size (26 kDa)…
ELISA Troubleshooting: Common Problems and Solutions
Jul 6, 2026
Key takeaways: Most ELISA failures trace back to three root causes—poor-quality reagents, insufficient optimization, or washing errors. This guide covers the 8 most common ELISA problems, their likely causes, and…
How to Choose Recombinant Proteins for ELISA: A Practical Guide
Jul 6, 2026
Key takeaways: Choosing the right recombinant protein for ELISA depends on four critical factors—expression system, purity level, fusion tags, and bioactivity validation. Making the wrong choice can lead to high…