RNA

Part:BBa_K5038001

Designed by: Qiyu Tan   Group: iGEM24_CJUH-JLU-China   (2024-08-20)

linker


Usage and Biology

This linker is used to connect LIRA hairpin and the reporter gene. In our experiments, we use EGFP, lacZ, or lacZα as the reporter gene. The presence of linker makes the LIRA system more stable i.e., more conducive to expressing reporter gene and indicate the existence of target RNA.

(Figure 1. Linker has the function to link LIRA and reporter gene)

Characterization

We simulated the RNA secondary structure of the LIRA-reporter system by NUPACK, using the presence or absence of the linker as a control, and assessed the stability of the RNA secondary structure by its free energy, the higher the free energy, the lower the stability. The data are summarized in Figure 2.

(Figure 2. The difference of free energy without linker and free energy with linker)
Temperature: 37℃, Unit: kcal/mol

As shown in Figure 2, in most LIRA-reporter systems, the free energy in the absence of a linker is greater than that in the presence of a linker, which indicates that the linker helps enhance the stability of the LIRA-reporter system.

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]