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mKate is a fluorophor derived from dsRed and is a FRET partner of LssmOrange [BBa_K1055001]

Usage and Biology

Characterization mKate

Figure 1. Peller of E.coli Bl21(DE3) cells with expressed mKate. Left side: without UV radiation, right side: with UV radiation

mKate is a red fluorescent protein that we want to use as a acceptor for FRET (Figure 3). According to [http://www.evrogen.com/products/basicFPs.shtml Evrogen] mKate has an excitation maximum at 588 nm and an emission maximum at 633 nm. Figure 2 shows that the excitation maximum is at 579 nm and the emission maximum is 611 nm. The emission maximum is big enough to get stimulated by LSSmOrange, the other fluorescent protein. Of course, we checked also the emission and excitation of our BL21(DE3) cells (data not shown) and we can eliminate the theories that these cells disturb this florescence measurement.

Figure 2. Excitation spectrum (dashed line) and emission spectrum (solid line) of mKate with marked maximums

Figure 3. Overlay of excitation spectrum (dashed line) and emission spectrum (solid line) of mKate and LSSmOrange

Moreover, unlike for our LssmOrange BioBrick (BBa_K1055001), there is a crystal structure available for further analysis which is shown below:

Figure 2. Excitation spectrum (dashed line) and emission spectrum (solid line) of mKate with marked maximums

Sequence and Features Status: 500 Content-type: text/html

Software error:

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