Part:BBa_K1799007

LsrA (modularization optimized)

Gene for the A subunit of the LsrACDB transporter, present in E. coli on the LsrACDBFG operon. The A subunit is the ATP-binding domain of the transporter, which actively brings autoinducer 2 (AI-2) into the cell.

The portion of the LsrACDBFG operon that codes for the AI-2 transporter consists of four open reading frames, which code for A, C, D, and B, respectively. Three of these ORFs overlap with one another: C overlaps with A, and its RBS is contained within the A subunit ORF, and D overlaps with C (although to a lesser extent), and its RBS is contained within the C subunit ORF. From a modularization standpoint, this creates an inefficiency because the wild type ORFs of the A and C subunits both contain functional RBSs, and in the case of the A subunit ORF, an ATG 4bp downstream. To reduce this inefficiency, we have created versions of each subunit ORF that are optimized for modularization.

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]