Part:BBa_K1184000
KillerRed
KillerRed is a red fluorescent protein that produces reactive oxygen species (ROS) in the presence of yellow-orange light (540-585 nm). KillerRed is engineered from Aequorea victoria GFP (avGFP) to be phototoxic. It has been shown that KillerRed produces superoxide radical anions by reacting with water. Superoxide reacts with the chromophore of KillerRed, causing it to become dark, which ultimately gives rise to a bleaching effect. KillerRed is spectrally similar to mRFP1 with a similar brightness. KillerRed is oligomeric and may form large aggregates.
This sequence is codon optimized for mammalian cells and has 14 rare proline codons for E. coli (CCC) and one rare arginine codon (AGA). Codon optimization should be taken into consideration if large amounts of the protein are required. Expression on a high-copy plasmid has produced detectable fluorescent signal, however.
Sequence and Features
- 10COMPATIBLE WITH RFC[10]
- 12COMPATIBLE WITH RFC[12]
- 21COMPATIBLE WITH RFC[21]
- 23COMPATIBLE WITH RFC[23]
- 25COMPATIBLE WITH RFC[25]
- 1000INCOMPATIBLE WITH RFC[1000]Illegal BsaI.rc site found at 151
Illegal BsaI.rc site found at 442
//biosafety/kill_switch
//cds/reporter/rfp
//chassis/prokaryote/ecoli
//function/celldeath
//function/reporter/fluorescence
color | Red |
control | BBa_E1010 as a negative control |
emission | 611 nm |
excitation | 545-585 nm |
function | Phototoxicity |
origin | Engineered from anm2CP |
output | Superoxide radical anion |