Regulatory

Part:BBa_K613007

Designed by: Alessandro Ferrari, Vincent Zimmern, Nadine Guenat, Henrike Niederholtmeyer   Group: iGEM11_EPF-Lausanne   (2011-09-20)

T7 promoter family member (LacI repressed)

Parts K613007 through K613012 are T7 promoter variants containing the lac operator just downstream of the T7 promoter. K613007 contains the T7 promoter wildtype sequence. The other sequences were derived by single base pair mutations that have been shown to alter its strength. The part includes a strong ribosomal binding site. Its strength was determined by cloning it in front of mRFP1 reporter and measuring fluorescence of BL21 cells containing a low copy number plasmid containing the reporter construct.

See also parts K613001 through K613006 for the same T7 promoter variants without a lac operator.

T7variants.png

For more characterization data see our [http://2011.igem.org/Team:EPF-Lausanne/Our_Project/T7_promoter_variants/t7prom wiki].

1. Imburgio, D., Rong, M., Ma, K. & McAllister, W.T. Studies of promoter recognition and start site selection by T7 RNA polymerase using a comprehensive collection of promoter variants. Biochemistry 39, 10419–10430 (2000).


Sequence and Features


Assembly Compatibility:
  • 10
    COMPATIBLE WITH RFC[10]
  • 12
    COMPATIBLE WITH RFC[12]
  • 21
    COMPATIBLE WITH RFC[21]
  • 23
    COMPATIBLE WITH RFC[23]
  • 25
    COMPATIBLE WITH RFC[25]
  • 1000
    COMPATIBLE WITH RFC[1000]


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Categories
Parameters
None