Difference between revisions of "Part:BBa K1995016"

Revision as of 18:50, 15 October 2016

IR (INP-N-merR)

Based on BBa_K1355003 (merR), we added INP-N to the upstream of merR. Using INP-N, we anchored merR out of the outer membrane of E.coli in order to increase the reducing efficiency of mercuric ions.

Ice nucleation protein (INP)'

To increase the reducing efficiency and detect the concentration of heavy metals, we used INP to anchor merR out of the outer membrane of E. coli.

Ice nucleation protein (INP) is an excretion surface protein. It is widely used for establishing germ surface display system. It contains an internal repeated domain (IRD) and an N-terminal anchoring domain (fig.1). Studies have shown that decrease the time of repetition of IRD can also get a better-off rate of displaying. So we decreased the time of repetition of IRD to reduce pressure of synthesis of E. coli.

Binding heavy metals

We detect the reducing efficiency of IR and other parts and get the following chart. (Fig. 2)

Sequence and Features