Coding

Part:BBa_K4733007

Designed by: Diego Perez Hidalgo   Group: iGEM23_UBC-Okanagan   (2023-10-05)


Photo-cleavable Linker

This coding sequence encodes a 20-long amino acid linker consisting of a photoscission site and a rigid alpha helix-forming linker sequence. The linker is photocleavable when exposed to light with a wavelength of 400 nm.

The sequence has been codon optimized by the 2023 UBC-Okanagan team for expression in the gram-positive model organism, Bacillus Subtilis.

Usage and Biology

The photocleavable incision was designed by Shadish et al. (2019) to have gel-bound fusion protein undergo irreversible photoscission upon exposure to light (wavelength of 400 nm) in a dose-dependent manner and release the bioactive protein.

The UBC-Okanagan 2023 team used the photoscission sequence and fused it on the N-terminus of a rigid linker since we wanted to cut a recombinant protein on that end without having an amino acid residue overhang. A rigid linker was chosen since rigid linkers can separate the functional domains or different proteins within a fusion protein (Chen et al. 2013).


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]


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Categories
Parameters
None