Part:BBa_K1355000

Strong RBS + merA (mercuric ion reductase)+ terminator (BBa_ B0015)

The MerA gene is one of the most important gene into bacterial mercury-resistance operon. The mercuric reductase is a cytosolic flavin disulfide oxidoreductase (homodimer ∼120 kDa) which uses NAD(P)H as a reductant. Transforms mercury Hg2+ in Hg0, which volatile, lipid-soluble Hg(0) diffuses through the cell membranes without the need for any dedicated efflux system, as shown in figure below.

Figure 01: Mer genes action in bacterial cell

Figure 02: MerA homodimer protein 3D structure

Source

MerA gene sequence is found in the O26-CRL plasmid from Escherichia coli O26. We also added strong RBS from protein 10 found in phage 17 and the double terminator (BBa_B0015) to ensure efficient termination of transcription and messenger RNA recognition.

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
  INCOMPATIBLE WITH RFC[25]

  Illegal NgoMIV site found at 1200
  Illegal NgoMIV site found at 1262
  
• 1000
  COMPATIBLE WITH RFC[1000]