Collection: Competent E.coli Cells for Cloning & Expression

High-Efficiency Competent E. coli Cells for Cloning & Protein Expression

Amid Biosciences provides a comprehensive selection of high-efficiency chemically competent cells and electrocompetent cells tailored for specialized molecular biology applications. All products are For Research Use Only (RUO) and manufactured to ensure optimal transformation efficiencies for critical laboratory workflows.

Optimized Strains for Every Workflow

  • Cloning & Subcloning: High-efficiency AB 5-alpha and DH10B cells optimized for large plasmids and genomic library generation.
  • Recombinant Protein Expression: Standard BL21(DE3) alongside specialized strains like BL21(λDE3)pBirA for in vivo biotinylation and BL21(λDE3)pLPP for producing non-phosphorylated proteins.
  • Phage Display Libraries: High-titer ER2738, SS320, and TG1 competent cells optimized for robust peptide and antibody fragment display.

Bulk Ordering & Custom Formats (HTS)

To support large-scale genomic libraries and automated workflows, we offer bulk quantities of our competent cells in various formats, including customized 96-well plates fully optimized for automated High-Throughput Screening (HTS) platforms. Contact our technical support team to discuss your specific volume and formatting requirements.

SF Bay Area Manufacturing & Premium Logistics

  • Local Manufacturing: All of our recombinant proteins and competent cells are proudly manufactured at our facility in the San Francisco Bay Area.
  • Free Local Shipping: We offer free overnight shipping for our San Francisco Bay Area customers to ensure seamless cold-chain delivery. Please note: While courier fees are completely waived locally, a standard dry ice handling surcharge applies at checkout.
  • Academic Discounts Available: We support scientific discovery in academia by providing dedicated academic discounts on our entire competent cell portfolio. Contact us with your institutional email to activate your discount code.

Domestic Shipping in the US

Temperature sensitive products requiring shipping/handling on dry ice are shipped via UPS Next Day Air Saver. These products are delivered the next day if your order is placed before 3 PM PST. A dry ice surcharge is included in the shipping cost at checkout. For orders totaling over $1,000, free shipping and handling will be applied to the order.