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  • Convenient Formats of Competent Cells

    NEB provides these superior competent cell strains in several formats for your convenience. All are available as 50 µl single-use transformation tubes and many are available in larger, 200 µl tubes for multiple simultaneous reactions. Our most popular cloning strains are available as electrocompetent cells. NEB 5-alpha is also available in a lower efficiency, subcloning format for substantial value.

    Cloning Formats:
    Formats NEB # Single-use 200 µl tubes 96-well plate Electrocompetent Subcloning SOC & Control Plasmid Included
    NEB Turbo C2984  
    NEB 5-alpha C2987
    NEB 5-alpha F'Iq C2992  
    NEB 10-beta C3019  
    dam-/dcm- C2925  
    Protein Expression Formats:
    NEB Express C2523  
    NEB Express Iq C3037  
    T7 Express C2566  
    T7 Express Iq C3016  
    T7 Express lysY C3010  
    T7 Express lysY/Iq C3013  
    T7 Express Crystal C3022  
    SHuffle Express C3028  
    SHuffle T7 C3026  
    SHuffle T7 Express lysY C3030  
    SHuffle T7 Express C3029  
    BL21 C2530  
    BL21(DE3) C2527  
    NiCo21(DE3) C2529  
    Lemo21(DE3) C2528   L-rhamnose and Control Plasmid