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Phage Display SS320 Chemically Competent E.coli Cells  High Throughput Library Screening | Peptides | Antibodies | Protein Expression

Amid Biosciences| Competent Cells and Protein Expression Vectors

Phage Display SS320 Chemically Competent E. coli Cells

$ 180.00

The E. coli strain SS320 is a non-amber suppressor strain (sometimes called MC1061F′) prepared as high transformation efficiency (≥ 1 × 109 cfu/μg) chemically competent cells for phage display library screening. The SS320 strain harbors an episome that contains the F′ pilus that is required for bacteriophage entry to allow amplification of phage libraries. This episome also contains the tetracycline resistance gene, so cells should be grown in the presence of tetracycline to maintain the F′ pilus.  

SS320 chemically competent cells are supplied as a pack of 10 convenient 100 µl per tube aliquots (sufficient for 20 reactions).

Electrocompetent SS320 E.coli cells are also available.


hsdR mcrB araD139 Δ(araABC-leu)7679ΔlacX74 galUgalK rpsL thi[F´ proAB+lacIqlacZΔM15 Tn10 (tetr)]

Catalog # SS320-201

Bulk quantities and custom packaging are available at very competitive prices for all Competent Cells. 

Features and Benefits

  • Transformation efficiency > 109 transformants /µg pBR322
  • Useful for preparation of phage display libraries
  • Fast-growing
  • Tetracycline resistant

Storage:  at -80°C.

International Shipping:  Product requires shipping on dry ice. Please contact for shipment estimates. 

Usage: This product is intended for LABORATORY RESEARCH USE ONLY. Not for diagnostic or therapeutic use.

Product Manual

Application References

Frei J. and Lai J. Protein and Antibody Engineering by Phage Display. Methods Enzymol. 2016; 580: 45–87.

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