SS320 Electrocompetent Cells. A non-amber suppressor strain (sometimes called MC1061F') prepared as highly efficient (≥4 × 1010 cfu/µg) electrocompetent cells for phage display library screening. These cells have the highest available transformation efficiency of any strain used for phage display.

Figure 1. Transformation efficiency of electrocompetent bacterial cells for phage display compared to competitor's specification.
Table 1. Competent Cells for Phage Display libraries
Cell Lines |
Transformation Efficiency (cfu/µg pUC DNA)
|
Cloning Methylated DNA
|
BAC, Cosmid Cloning
|
Blue/White Screening
|
|
TG1 Electrocompetent
|
>4 × 1010
|
YES
|
NO
|
YES IPTG induction required
|
|
SS320 (MC1061 F') Electrocompetent
|
>4× 1010
|
YES
|
NO
|
YES IPTG induction required
|
|
MC1061 F-Electrocompetent
|
>4× 1010
|
YES
|
NO
|
YES IPTG induction required
|
|
ER2738 Electrocompetent
|
>2 × 1010
|
YES
|
NO
|
YES IPTG induction required
|