New England Biolabs is working diligently to ensure we keep our employees and their families safe, while maintaining our business continuity. Despite a "Stay At Home" advisory being put in place in Massachusetts, USA, we are deemed an essential business, and our manufacturing and distribution teams continue to be fully operational. We are continuing to work with our suppliers and distribution partners to ensure uninterrupted access to our products and technical support.

T7 Express Iq Competent E. coli (High Efficiency)

NEB does not add a dry ice surcharge to our competent cell shipments.
T7 Express lysY/Iq competent E.coli (C3013I) is available as a superior alternative to T7 Express Iq competent E.coli (C3016 ). The additional lysY gene expresses a phage T7 lysozyme variant that inhibits basal T7 RNA polymerase activity. The net result of employing lysY/Iq cells as a host strain is greater clone stability and equivalent or improved expression of recombinant protein.
  • Catalog # C3016 was discontinued on March 31, 2015 ;
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